Warm-blooded vertebrate animals belonging to the class Mammalia, including all that possess hair and suckle their young.
An infraclass of MAMMALS, also called Metatheria, where the young are born at an early stage of development and continue to develop in a pouch (marsupium). In contrast to Eutheria (placentals), marsupials have an incomplete PLACENTA.
The relationships of groups of organisms as reflected by their genetic makeup.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
The process of cumulative change over successive generations through which organisms acquire their distinguishing morphological and physiological characteristics.
The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species.
A mammalian order which consists of 29 families and many genera.
The process of cumulative change at the level of DNA; RNA; and PROTEINS, over successive generations.
The suborder of aquatic CARNIVORA comprising the WALRUSES; FUR SEALS; SEA LIONS; and EARLESS SEALS. They have fusiform bodies with very short tails and are found on all sea coasts. The offspring are born on land.
Cold-blooded, air-breathing VERTEBRATES belonging to the class Reptilia, usually covered with external scales or bony plates.
An order of wholly aquatic MAMMALS occurring in all the OCEANS and adjoining seas of the world, as well as in certain river systems. They feed generally on FISHES, cephalopods, and crustaceans. Most are gregarious and most have a relatively long period of parental care and maturation. Included are DOLPHINS; PORPOISES; and WHALES. (From Walker's Mammals of the World, 5th ed, pp969-70)
The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION.
An order of insect eating MAMMALS including MOLES; SHREWS; HEDGEHOGS and tenrecs.
Warm-blooded VERTEBRATES possessing FEATHERS and belonging to the class Aves.
Remains, impressions, or traces of animals or plants of past geological times which have been preserved in the earth's crust.
Animals having a vertebral column, members of the phylum Chordata, subphylum Craniata comprising mammals, birds, reptiles, amphibians, and fishes.
The family Phocidae, suborder PINNIPEDIA, order CARNIVORA, comprising the true seals. They lack external ears and are unable to use their hind flippers to walk. It includes over 18 species including the harp seal, probably the best known seal species in the world.
An order of MAMMALS, usually flesh eaters with appropriate dentition. Suborders include the terrestrial carnivores Fissipedia, and the aquatic carnivores PINNIPEDIA.
The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence.
An oviparous burrowing mammal of the order Monotremata native to Australia, Tasmania, and New Guinea. It has hair mingled with spines on the upper part of the body and is adapted for feeding on ants.
Mammals of the families Delphinidae (ocean dolphins), Iniidae, Lipotidae, Pontoporiidae, and Platanistidae (all river dolphins). Among the most well-known species are the BOTTLE-NOSED DOLPHIN and the KILLER WHALE (a dolphin). The common name dolphin is applied to small cetaceans having a beaklike snout and a slender, streamlined body, whereas PORPOISES are small cetaceans with a blunt snout and rather stocky body. (From Walker's Mammals of the World, 5th ed, pp978-9)
The arrangement of two or more amino acid or base sequences from an organism or organisms in such a way as to align areas of the sequences sharing common properties. The degree of relatedness or homology between the sequences is predicted computationally or statistically based on weights assigned to the elements aligned between the sequences. This in turn can serve as a potential indicator of the genetic relatedness between the organisms.
The degree of similarity between sequences of amino acids. This information is useful for the analyzing genetic relatedness of proteins and species.
The ceasing of existence of a species or taxonomic groups of organisms.
A family of herbivorous leaping MAMMALS of Australia, New Guinea, and adjacent islands. Members include kangaroos, wallabies, quokkas, and wallaroos.
The physical measurements of a body.
Animals considered to be wild or feral or not adapted for domestic use. It does not include wild animals in zoos for which ANIMALS, ZOO is available.
A family of the order Rodentia which contains 49 genera. Some of the more common genera are MARMOTA, which includes the marmot and woodchuck; Sciurus, the gray squirrel, S. carolinensis, and the fox squirrel, S. niger; Tamias, the eastern and western chipmunk; and Tamiasciurus, the red squirrel. The flying squirrels, except the scaly-tailed Anomaluridae, also belong to this family.
New World marsupials of the family Didelphidae. Opossums are omnivorous, largely nocturnal and arboreal MAMMALS, grow to about three feet in length, including the scaly prehensile tail, and have an abdominal pouch in which the young are carried at birth.
Order of mammals whose members are adapted for flight. It includes bats, flying foxes, and fruit bats.
The dormant state in which some warm-blooded animal species pass the winter. It is characterized by narcosis and by sharp reduction in body temperature and metabolic activity and by a depression of vital signs.
The teeth collectively in the dental arch. Dentition ordinarily refers to the natural teeth in position in their alveoli. Dentition referring to the deciduous teeth is DENTITION, PRIMARY; to the permanent teeth, DENTITION, PERMANENT. (From Jablonski, Dictionary of Dentistry, 1992)
The genetic complement of an organism, including all of its GENES, as represented in its DNA, or in some cases, its RNA.
A sequence of amino acids in a polypeptide or of nucleotides in DNA or RNA that is similar across multiple species. A known set of conserved sequences is represented by a CONSENSUS SEQUENCE. AMINO ACID MOTIFS are often composed of conserved sequences.
The study of the teeth of early forms of life through fossil remains.
A subfamily of MURIDAE found nearly world-wide and consisting of about 20 genera. Voles, lemmings, and muskrats are members.
A group of cold-blooded, aquatic vertebrates having gills, fins, a cartilaginous or bony endoskeleton, and elongated bodies covered with scales.
Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.
Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action during the developmental stages of an organism.
An exotic species of the family CYPRINIDAE, originally from Asia, that has been introduced in North America. They are used in embryological studies and to study the effects of certain chemicals on development.
Any of several burrowing rodents of the families MURIDAE and Bathyergidae, found in eastern Europe, Africa, and Asia. They have short limbs, small eyes with permanently closed lids, and no tail. Three genera SPALAX (Muridae), Heterocephalus (Bathyergidae) and Cryptomys (Bathyergidae) are used frequently as experimental animals in biomedical research. (From Walker's Mammals of the World, 6th ed)
An order of small mammals comprising two families, Ochotonidae (pikas) and Leporidae (RABBITS and HARES). Head and body length ranges from about 125 mm to 750 mm. Hares and rabbits have a short tail, and the pikas lack a tail. Rabbits are born furless and with both eyes and ears closed. HARES are born fully haired with eyes and ears open. All are vegetarians. (From Nowak, Walker's Mammals of the World, 5th ed, p539-41)
Slow-moving exclusively arboreal mammals that inhabit the tropical forests of South and Central America.
The insertion of recombinant DNA molecules from prokaryotic and/or eukaryotic sources into a replicating vehicle, such as a plasmid or virus vector, and the introduction of the resultant hybrid molecules into recipient cells without altering the viability of those cells.
The comparative study of animal structure with regard to homologous organs or parts. (Stedman, 25th ed)
A multistage process that includes cloning, physical mapping, subcloning, determination of the DNA SEQUENCE, and information analysis.
The study of early forms of life through fossil remains.
Common name for the species Gallus gallus, the domestic fowl, in the family Phasianidae, order GALLIFORMES. It is descended from the red jungle fowl of SOUTHEAST ASIA.
Large mammals in the family Elephantidae, with columnar limbs, bulky bodies, and elongated snouts. They are the only surviving members of the PROBOSCIDEA MAMMALS.
VERTEBRATES belonging to the class amphibia such as frogs, toads, newts and salamanders that live in a semiaquatic environment.
Animate or inanimate sources which normally harbor disease-causing organisms and thus serve as potential sources of disease outbreaks. Reservoirs are distinguished from vectors (DISEASE VECTORS) and carriers, which are agents of disease transmission rather than continuing sources of potential disease outbreaks.
A dosage compensation process occurring at an early embryonic stage in mammalian development whereby, at random, one X CHROMOSOME of the pair is repressed in the somatic cells of females.
The species Tursiops truncatus, in the family Delphinidae, characterized by a bottle-shaped beak and slightly hooked broad dorsal fin.
Fish-eating carnivores of the family MUSTELIDAE, found on both hemispheres.
A genus of short-tailed OPOSSUMS in the family Didelphidae found in South American, chiefly Brazil. They are opossums least well-adapted to arboreal life.
The total process by which organisms produce offspring. (Stedman, 25th ed)
A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)
A group comprised of several species of aquatic carnivores in different genera, in the family Otariidae. In comparison to FUR SEALS, they have shorter, less dense hair.
Proteins that originate from insect species belonging to the genus DROSOPHILA. The proteins from the most intensely studied species of Drosophila, DROSOPHILA MELANOGASTER, are the subject of much interest in the area of MORPHOGENESIS and development.
A genus of large OPOSSUMS in the family Didelphidae, found in the Americas. The species Didelphis virginiana is prominent in North America.
Single-stranded complementary DNA synthesized from an RNA template by the action of RNA-dependent DNA polymerase. cDNA (i.e., complementary DNA, not circular DNA, not C-DNA) is used in a variety of molecular cloning experiments as well as serving as a specific hybridization probe.
Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control (induction or repression) of gene action at the level of transcription or translation.
Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations.
Any of numerous burrowing mammals found in temperate regions and having minute eyes often covered with skin.
The normal length of time of an organism's life.
The male gonad containing two functional parts: the SEMINIFEROUS TUBULES for the production and transport of male germ cells (SPERMATOGENESIS) and the interstitial compartment containing LEYDIG CELLS that produce ANDROGENS.
The variety of all native living organisms and their various forms and interrelationships.
A set of genes descended by duplication and variation from some ancestral gene. Such genes may be clustered together on the same chromosome or dispersed on different chromosomes. Examples of multigene families include those that encode the hemoglobins, immunoglobulins, histocompatibility antigens, actins, tubulins, keratins, collagens, heat shock proteins, salivary glue proteins, chorion proteins, cuticle proteins, yolk proteins, and phaseolins, as well as histones, ribosomal RNA, and transfer RNA genes. The latter three are examples of reiterated genes, where hundreds of identical genes are present in a tandem array. (King & Stanfield, A Dictionary of Genetics, 4th ed)
A family of the order Rodentia containing 250 genera including the two genera Mus (MICE) and Rattus (RATS), from which the laboratory inbred strains are developed. The fifteen subfamilies are SIGMODONTINAE (New World mice and rats), CRICETINAE, Spalacinae, Myospalacinae, Lophiomyinae, ARVICOLINAE, Platacanthomyinae, Nesomyinae, Otomyinae, Rhizomyinae, GERBILLINAE, Dendromurinae, Cricetomyinae, MURINAE (Old World mice and rats), and Hydromyinae.
RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm.
Large marine mammals of the order CETACEA. In the past, they were commercially valued for whale oil, for their flesh as human food and in ANIMAL FEED and FERTILIZERS, and for baleen. Today, there is a moratorium on most commercial whaling, as all species are either listed as endangered or threatened.
The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs and stimuli, hormone secretion, sleeping, and feeding.
The protection, preservation, restoration, and rational use of all resources in the total environment.
A genus in the family of EARLESS SEALS (Phocidae) and collectively the most abundant PINNIPEDS in the Northern Hemisphere.
Theoretical representations that simulate the behavior or activity of genetic processes or phenomena. They include the use of mathematical equations, computers, and other electronic equipment.
The biological science concerned with similarities or differences in the life-supporting functions and processes of different species.
Movement or the ability to move from one place or another. It can refer to humans, vertebrate or invertebrate animals, and microorganisms.
Endogenous substances, usually proteins, which are effective in the initiation, stimulation, or termination of the genetic transcription process.
A species of fruit fly much used in genetics because of the large size of its chromosomes.
A genus of pufferfish commonly used for research.
The intracellular transfer of information (biological activation/inhibition) through a signal pathway. In each signal transduction system, an activation/inhibition signal from a biologically active molecule (hormone, neurotransmitter) is mediated via the coupling of a receptor/enzyme to a second messenger system or to an ion channel. Signal transduction plays an important role in activating cellular functions, cell differentiation, and cell proliferation. Examples of signal transduction systems are the GAMMA-AMINOBUTYRIC ACID-postsynaptic receptor-calcium ion channel system, the receptor-mediated T-cell activation pathway, and the receptor-mediated activation of phospholipases. Those coupled to membrane depolarization or intracellular release of calcium include the receptor-mediated activation of cytotoxic functions in granulocytes and the synaptic potentiation of protein kinase activation. Some signal transduction pathways may be part of larger signal transduction pathways; for example, protein kinase activation is part of the platelet activation signal pathway.
One of a set of bone-like structures in the mouth used for biting and chewing.
An order of heavy-bodied, slow-moving, completely aquatic, herbivorous mammals. The body is fusiform, plump, and hairless, except for bristles on the snout. Hindlimbs are absent, the forelimbs are modified to flippers, and the tail is a horizontal fluke. (From Scott, Concise Encyclopedia Biology, 1996)
The consumption of animal flesh.
The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)
A species of nematode that is widely used in biological, biochemical, and genetic studies.
Diseases of rodents of the order RODENTIA. This term includes diseases of Sciuridae (squirrels), Geomyidae (gophers), Heteromyidae (pouched mice), Castoridae (beavers), Cricetidae (rats and mice), Muridae (Old World rats and mice), Erethizontidae (porcupines), and Caviidae (guinea pigs).
A genus of small, two-winged flies containing approximately 900 described species. These organisms are the most extensively studied of all genera from the standpoint of genetics and cytology.
ANIMALS whose GENOME has been altered by GENETIC ENGINEERING, or their offspring.
Mammals of the family Phocoenidae comprising four genera found in the North Pacific Ocean and both sides of the North Atlantic Ocean and in various other seas. They differ from DOLPHINS in that porpoises have a blunt snout and a rather stocky body while dolphins have a beak-like snout and a slender, streamlined body. They usually travel in small groups. (From Walker's Mammals of the World, 5th ed, pp1003-4)
The family of agile, keen-sighted mongooses of Asia and Africa that feed on RODENTS and SNAKES.
An activity in which the organism plunges into water. It includes scuba and bell diving. Diving as natural behavior of animals goes here, as well as diving in decompression experiments with humans or animals.
Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor.
The sequential correspondence of nucleotides in one nucleic acid molecule with those of another nucleic acid molecule. Sequence homology is an indication of the genetic relatedness of different organisms and gene function.
A genus of the order Sirenia comprising what are commonly called manatees. The distinguishing characteristics include a tail that is not notched, a short nasal cavity, the absence of nasal bones, and enamel-covered teeth. Members of this genus are found in marine bays and/or sluggish rivers, usually in turbid water. (From Scott, Concise Encyclopedia Biology, 1996)
A subfamily in the family MURIDAE, comprising the Old World MICE and RATS.
A small order of primarily marine fish containing 340 species. Most have a rotund or box-like shape. TETRODOTOXIN is found in their liver and ovaries.
The science dealing with the earth and its life, especially the description of land, sea, and air and the distribution of plant and animal life, including humanity and human industries with reference to the mutual relations of these elements. (From Webster, 3d ed)
A group comprised of several species of eared seals found in two genera, in the family Otariidae. In comparison to SEA LIONS, they have an especially dense wooly undercoat.
An ovoid densely packed collection of small cells of the anterior hypothalamus lying close to the midline in a shallow impression of the OPTIC CHIASM.
The observable response an animal makes to any situation.
The entity of a developing mammal (MAMMALS), generally from the cleavage of a ZYGOTE to the end of embryonic differentiation of basic structures. For the human embryo, this represents the first two months of intrauterine development preceding the stages of the FETUS.
An accessory chemoreceptor organ that is separated from the main OLFACTORY MUCOSA. It is situated at the base of nasal septum close to the VOMER and NASAL BONES. It forwards chemical signals (such as PHEROMONES) to the CENTRAL NERVOUS SYSTEM, thus influencing reproductive and social behavior. In humans, most of its structures except the vomeronasal duct undergo regression after birth.
The non-genetic biological changes of an organism in response to challenges in its ENVIRONMENT.
Sexual activities of animals.
A technique that localizes specific nucleic acid sequences within intact chromosomes, eukaryotic cells, or bacterial cells through the use of specific nucleic acid-labeled probes.
Large, long-tailed reptiles, including caimans, of the order Loricata.
Processes occurring in various organisms by which new genes are copied. Gene duplication may result in a MULTIGENE FAMILY; supergenes or PSEUDOGENES.
The level of protein structure in which combinations of secondary protein structures (alpha helices, beta sheets, loop regions, and motifs) pack together to form folded shapes called domains. Disulfide bridges between cysteines in two different parts of the polypeptide chain along with other interactions between the chains play a role in the formation and stabilization of tertiary structure. Small proteins usually consist of only one domain but larger proteins may contain a number of domains connected by segments of polypeptide chain which lack regular secondary structure.
A family of the order PRIMATES, suborder Strepsirhini (PROSIMII), containing five genera. All inhabitants of Madagascar, the genera are: Allocebus, Cheirogaleus (dwarf lemurs), Microcebus (mouse lemurs), Mirza, and Phaner.
Elements of limited time intervals, contributing to particular results or situations.
Differential and non-random reproduction of different genotypes, operating to alter the gene frequencies within a population.
Behavioral responses or sequences associated with eating including modes of feeding, rhythmic patterns of eating, and time intervals.
Characteristic restricted to a particular organ of the body, such as a cell type, metabolic response or expression of a particular protein or antigen.
Established cell cultures that have the potential to propagate indefinitely.
General name for two extinct orders of reptiles from the Mesozoic era: Saurischia and Ornithischia.
An animal or plant species in danger of extinction. Causes can include human activity, changing climate, or change in predator/prey ratios.
Number of individuals in a population relative to space.
The pattern of any process, or the interrelationship of phenomena, which affects growth or change within a population.
The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.
The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment.
Proteins obtained from the ZEBRAFISH. Many of the proteins in this species have been the subject of studies involving basic embryological development (EMBRYOLOGY).
Genes bearing close resemblance to known genes at different loci, but rendered non-functional by additions or deletions in structure that prevent normal transcription or translation. When lacking introns and containing a poly-A segment near the downstream end (as a result of reverse copying from processed nuclear RNA into double-stranded DNA), they are called processed genes.
The family Cervidae of 17 genera and 45 species occurring nearly throughout North America, South America, and Eurasia, on most associated continental islands, and in northern Africa. Wild populations of deer have been established through introduction by people in Cuba, New Guinea, Australia, New Zealand, and other places where the family does not naturally occur. They are slim, long-legged and best characterized by the presence of antlers. Their habitat is forests, swamps, brush country, deserts, and arctic tundra. They are usually good swimmers; some migrate seasonally. (Walker's Mammals of the World, 5th ed, p1362)
Short sequences (generally about 10 base pairs) of DNA that are complementary to sequences of messenger RNA and allow reverse transcriptases to start copying the adjacent sequences of mRNA. Primers are used extensively in genetic and molecular biology techniques.
An order of ungulates having an odd number of toes, including the horse, tapir, and rhinoceros. (Dorland, 27th ed)
Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA).
Genotypic differences observed among individuals in a population.
Large, hoofed mammals of the family EQUIDAE. Horses are active day and night with most of the day spent seeking and consuming food. Feeding peaks occur in the early morning and late afternoon, and there are several daily periods of rest.
The mechanisms by which the SEX of an individual's GONADS are fixed.
Mature male germ cells derived from SPERMATIDS. As spermatids move toward the lumen of the SEMINIFEROUS TUBULES, they undergo extensive structural changes including the loss of cytoplasm, condensation of CHROMATIN into the SPERM HEAD, formation of the ACROSOME cap, the SPERM MIDPIECE and the SPERM TAIL that provides motility.
A former branch of knowledge embracing the study, description, and classification of natural objects (as animals, plants, and minerals) and thus including the modern sciences of zoology, botany, and mineralogy insofar as they existed at that time. In the 17th, 18th, and 19th centuries it was much used for the generalized pursuit of certain areas of science. (Webster, 3d ed; from Dr. James H. Cassedy, NLM History of Medicine Division)
Any method used for determining the location of and relative distances between genes on a chromosome.
Activities performed by humans.
Proteins obtained from species of fish (FISHES).
Sequences of DNA in the genes that are located between the EXONS. They are transcribed along with the exons but are removed from the primary gene transcript by RNA SPLICING to leave mature RNA. Some introns code for separate genes.
The phenotypic manifestation of a gene or genes by the processes of GENETIC TRANSCRIPTION and GENETIC TRANSLATION.
The biosynthesis of RNA carried out on a template of DNA. The biosynthesis of DNA from an RNA template is called REVERSE TRANSCRIPTION.
The gamete-producing glands, OVARY or TESTIS.
The chemical reactions involved in the production and utilization of various forms of energy in cells.
The basic cellular units of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the NERVOUS SYSTEM.
The process of germ cell development in the male from the primordial germ cells, through SPERMATOGONIA; SPERMATOCYTES; SPERMATIDS; to the mature haploid SPERMATOZOA.
The process in which substances, either endogenous or exogenous, bind to proteins, peptides, enzymes, protein precursors, or allied compounds. Specific protein-binding measures are often used as assays in diagnostic assessments.
The family of carnivorous or omnivorous bears, having massive bodies, coarse heavy fur, relatively short limbs, and almost rudimentary tails.
The female sex chromosome, being the differential sex chromosome carried by half the male gametes and all female gametes in human and other male-heterogametic species.
Strains of mice in which certain GENES of their GENOMES have been disrupted, or "knocked-out". To produce knockouts, using RECOMBINANT DNA technology, the normal DNA sequence of the gene being studied is altered to prevent synthesis of a normal gene product. Cloned cells in which this DNA alteration is successful are then injected into mouse EMBRYOS to produce chimeric mice. The chimeric mice are then bred to yield a strain in which all the cells of the mouse contain the disrupted gene. Knockout mice are used as EXPERIMENTAL ANIMAL MODELS for diseases (DISEASE MODELS, ANIMAL) and to clarify the functions of the genes.
The presence of two or more genetic loci on the same chromosome. Extensions of this original definition refer to the similarity in content and organization between chromosomes, of different species for example.
The process in developing sex- or gender-specific tissue, organ, or function after SEX DETERMINATION PROCESSES have set the sex of the GONADS. Major areas of sex differentiation occur in the reproductive tract (GENITALIA) and the brain.
Morphological and physiological development of EMBRYOS.
A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine).
A genus of the order Sirenia characterized by a notched tail, the presence of nasal bones and a long nasal cavity, and large columnar teeth lacking enamel. Dugongs inhabit the coastal waters of the Indian Ocean, Red Sea, and the Malay Archipelago. (From Scott, Concise Encyclopedia Biology, 1996)
The domestic cat, Felis catus, of the carnivore family FELIDAE, comprising over 30 different breeds. The domestic cat is descended primarily from the wild cat of Africa and extreme southwestern Asia. Though probably present in towns in Palestine as long ago as 7000 years, actual domestication occurred in Egypt about 4000 years ago. (From Walker's Mammals of the World, 6th ed, p801)
The parts of a transcript of a split GENE remaining after the INTRONS are removed. They are spliced together to become a MESSENGER RNA or other functional RNA.
Accumulation of a drug or chemical substance in various organs (including those not relevant to its pharmacologic or therapeutic action). This distribution depends on the blood flow or perfusion rate of the organ, the ability of the drug to penetrate organ membranes, tissue specificity, protein binding. The distribution is usually expressed as tissue to plasma ratios.
The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time.
Divisions of the year according to some regularly recurrent phenomena usually astronomical or climatic. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Circadian rhythm signaling proteins that influence circadian clock by interacting with other circadian regulatory proteins and transporting them into the CELL NUCLEUS.
The time period of daily exposure that an organism receives from daylight or artificial light. It is believed that photoperiodic responses may affect the control of energy balance and thermoregulation.
Different forms of a protein that may be produced from different GENES, or from the same gene by ALTERNATIVE SPLICING.
Proteins from the nematode species CAENORHABDITIS ELEGANS. The proteins from this species are the subject of scientific interest in the area of multicellular organism MORPHOGENESIS.
A species of the genus SACCHAROMYCES, family Saccharomycetaceae, order Saccharomycetales, known as "baker's" or "brewer's" yeast. The dried form is used as a dietary supplement.
The homologous chromosomes that are dissimilar in the heterogametic sex. There are the X CHROMOSOME, the Y CHROMOSOME, and the W, Z chromosomes (in animals in which the female is the heterogametic sex (the silkworm moth Bombyx mori, for example)). In such cases the W chromosome is the female-determining and the male is ZZ. (From King & Stansfield, A Dictionary of Genetics, 4th ed)
Changes in biological features that help an organism cope with its ENVIRONMENT. These changes include physiological (ADAPTATION, PHYSIOLOGICAL), phenotypic and genetic changes.
Animals that have no spinal column.
The family Erinaceidae, in the order INSECTIVORA. Most are true hedgehogs possessing a coat of spines and a very short tail. Those members of the family found in Southeast Asia (moonrats or gymnures) have normal body hair and a long tail.
Proteins which are found in membranes including cellular and intracellular membranes. They consist of two types, peripheral and integral proteins. They include most membrane-associated enzymes, antigenic proteins, transport proteins, and drug, hormone, and lectin receptors.
Sounds used in animal communication.
Instinctual behavior pattern in which food is obtained by killing and consuming other species.
The developmental entity of a fertilized egg (ZYGOTE) in animal species other than MAMMALS. For chickens, use CHICK EMBRYO.
Proteins found in the nucleus of a cell. Do not confuse with NUCLEOPROTEINS which are proteins conjugated with nucleic acids, that are not necessarily present in the nucleus.
Proteins which bind to DNA. The family includes proteins which bind to both double- and single-stranded DNA and also includes specific DNA binding proteins in serum which can be used as markers for malignant diseases.
A genus of diurnal rats in the family Octodonidae, found in South America. The species Octodon degus is frequently used for research.
Bony structure of the mouth that holds the teeth. It consists of the MANDIBLE and the MAXILLA.
A large stout-bodied, sometimes anadromous, TROUT found in still and flowing waters of the Pacific coast from southern California to Alaska. It has a greenish back, a whitish belly, and pink, red, or lavender stripes on the sides, with usually a sprinkling of black dots. It is highly regarded as a sport and food fish. Its former name was Salmo gairdneri. The sea-run rainbow trouts are often called steelheads. Redband trouts refer to interior populations of rainbows.
Genetic mechanisms that allow GENES to be expressed at a similar level irrespective of their GENE DOSAGE. This term is usually used in discussing genes that lie on the SEX CHROMOSOMES. Because the sex chromosomes are only partially homologous, there is a different copy number, i.e., dosage, of these genes in males vs. females. In DROSOPHILA, dosage compensation is accomplished by hypertranscription of genes located on the X CHROMOSOME. In mammals, dosage compensation of X chromosome genes is accomplished by random X CHROMOSOME INACTIVATION of one of the two X chromosomes in the female.
In vitro method for producing large amounts of specific DNA or RNA fragments of defined length and sequence from small amounts of short oligonucleotide flanking sequences (primers). The essential steps include thermal denaturation of the double-stranded target molecules, annealing of the primers to their complementary sequences, and extension of the annealed primers by enzymatic synthesis with DNA polymerase. The reaction is efficient, specific, and extremely sensitive. Uses for the reaction include disease diagnosis, detection of difficult-to-isolate pathogens, mutation analysis, genetic testing, DNA sequencing, and analyzing evolutionary relationships.
Wormlike or grublike stage, following the egg in the life cycle of insects, worms, and other metamorphosing animals.
A highly vascularized mammalian fetal-maternal organ and major site of transport of oxygen, nutrients, and fetal waste products. It includes a fetal portion (CHORIONIC VILLI) derived from TROPHOBLASTS and a maternal portion (DECIDUA) derived from the uterine ENDOMETRIUM. The placenta produces an array of steroid, protein and peptide hormones (PLACENTAL HORMONES).
The processes of heating and cooling that an organism uses to control its temperature.
Genes that are located on the X CHROMOSOME.
RNA which does not code for protein but has some enzymatic, structural or regulatory function. Although ribosomal RNA (RNA, RIBOSOMAL) and transfer RNA (RNA, TRANSFER) are also untranslated RNAs they are not included in this scope.
Transport proteins that carry specific substances in the blood or across cell membranes.
A genus of gram-negative, aerobic bacteria that causes BRUCELLOSIS. Its cells are nonmotile coccobacilli and are animal parasites and pathogens. The bacterium is transmissible to humans through contact with infected dairy products or tissue.
The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.
A variation of the PCR technique in which cDNA is made from RNA via reverse transcription. The resultant cDNA is then amplified using standard PCR protocols.
Female germ cells derived from OOGONIA and termed OOCYTES when they enter MEIOSIS. The primary oocytes begin meiosis but are arrested at the diplotene state until OVULATION at PUBERTY to give rise to haploid secondary oocytes or ova (OVUM).
Animals which have become adapted through breeding in captivity to a life intimately associated with humans. They include animals domesticated by humans to live and breed in a tame condition on farms or ranches for economic reasons, including LIVESTOCK (specifically CATTLE; SHEEP; HORSES; etc.), POULTRY; and those raised or kept for pleasure and companionship, e.g., PETS; or specifically DOGS; CATS; etc.
Refers to animals in the period of time just after birth.
The species Oryctolagus cuniculus, in the family Leporidae, order LAGOMORPHA. Rabbits are born in burrows, furless, and with eyes and ears closed. In contrast with HARES, rabbits have 22 chromosome pairs.
The reproductive cells in multicellular organisms at various stages during GAMETOGENESIS.
The determination of the pattern of genes expressed at the level of GENETIC TRANSCRIPTION, under specific circumstances or in a specific cell.
A process whereby multiple RNA transcripts are generated from a single gene. Alternative splicing involves the splicing together of other possible sets of EXONS during the processing of some, but not all, transcripts of the gene. Thus a particular exon may be connected to any one of several alternative exons to form a mature RNA. The alternative forms of mature MESSENGER RNA produce PROTEIN ISOFORMS in which one part of the isoforms is common while the other parts are different.
Linear POLYPEPTIDES that are synthesized on RIBOSOMES and may be further modified, crosslinked, cleaved, or assembled into complex proteins with several subunits. The specific sequence of AMINO ACIDS determines the shape the polypeptide will take, during PROTEIN FOLDING, and the function of the protein.
Berta A. and Churchill M. (2012). Pinniped Taxonomy: evidence for species and subspecies. Mammal. pp. 207-234. (in Spanish) ... Seventeen land and sea-bird species breed on the islands. The island has three endemic bird species, and two endemic subspecies ... are the predominant species in the tree-fern forests. An endemic species of sandalwood, Santalum fernandezianum, was ... This species was nearly exterminated in the sixteenth to nineteenth century, but it was rediscovered in 1965. A census in 1970 ...
"African Forest Elephant , Species , WWF". World Wildlife Fund. Retrieved 2019-05-18. "Forest buffalo , mammal". Encyclopedia ... The species recorded are 266 and the species though identified but yet to be confirmed are 56. All the species are resident and ... Nine species of hornbill and the grey parrot have been recorded. It is very rich in butterflies as well, and a new species was ... The bird inventory confirmed 266 species in the park, including eight species of global conservation concern. One of these ...
These carnivorous mammals use their gait which is dependent on their species and size. The structure of a carnivore is designed ... Individual species' diets may vary, depending on the season and what food can be sourced. Mesocarnivore mammals have a large ... "Raccoon , mammal". Encyclopedia Britannica. Retrieved 2020-05-28. "mongoose , Species & Facts". Encyclopedia Britannica. ... Large and small mammals are considered as prey to these mesocarnivores, as well as different herbivores, depending on what food ...
312-529 in Wilson, D.E. and Reeder, D.M. (eds.). Mammal Species of the World: a taxonomic and geographic reference. 3rd ed. ... Percival's trident bat (Cloeotis percivali) is a species of bat in the family Hipposideridae. It is monotypic within the genus ... "Leaf-nosed bat , mammal". Encyclopedia Britannica. Retrieved 2020-05-29. Simmons, N.B. 2005. Order Chiroptera. Pp. ... The IUCN Red List of Threatened Species. 2017: e.T4983A22028899. doi:10.2305/IUCN.UK.2017-2.RLTS.T4983A22028899.en. " ...
Patterson, B. & Solari, S. (2008). "mammal". IUCN Red List of Threatened Species. 2008. Retrieved 19 December 2009.old-form url ... 2007). Mammals of South America. 1. Chicago, US: University of Chicago Press. pp. 12-4. ISBN 978-0-226-28242-8. Larry, Marshall ... Differences from Marmosa species (mouse opossums) include smaller ears, longer and narrower rostrum, and greater erectness in ... Anthony, H. E. (1926). "Preliminary report on Ecuadorean mammals. No. 7". American Museum Novitates. 240: 1-6. hdl:2246/4158. ...
2005). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. ISBN 978-0- ... The striped ground squirrel is a common species throughout most of its wide range. It is an adaptable species and no particular ... Striped ground squirrels live alone, or in pairs, and greet other members of their species by sniffing each other nose-to-nose ... This is a common species with a wide range and the International Union for Conservation of Nature has rated its conservation ...
Berta, A.; Churchill, M. (2012). "Pinniped Taxonomy: evidence for species and subspecies". Mammal Review. 42 (3): 207-234. doi: ... All species are polygynous; i.e. successful males breed with several females. In most species, males arrive at breeding sites ... They comprise 15 extant species in seven genera (another species became extinct in the 1950s) and are commonly known either as ... Review of currently recognized species and subspecies, and evidence used for their description". Mammal Review. 42 (3): 207-34 ...
Berta, A. & Churchill, M. (2012). "Pinniped Taxonomy: evidence for species and subspecies". Mammal Review. 42 (3): 207-234. doi ... It now contains just two species, the common seal (or harbour seal) and the spotted seal (or largha seal). Several species ... Until recently, Phoca largha has been considered a subspecies of Phoca vitulina but now is considered its own species. For this ... Marine Mammal Science. 20 (3): 639-656. doi:10.1111/j.1748-7692.2004.tb01184.x. ISSN 1748-7692. van Parijs, S. M.; Thompson, P ...
Gardner, A.L. (2005). "Order Paucituberculata". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic ... 2007). Mammals of South America. 1. Chicago, US: University of Chicago Press. pp. 121, 124-6. ISBN 978-0-226-28242-8. Ojala- ... Martin, G.M. (2016). "Caenolestes convelatus". IUCN Red List of Threatened Species. IUCN. 2016: e.T40522A22179860. doi:10.2305/ ... Patterson, B.D.; Gallardo, M.H. (1987). "Rhyncolestes raphanurus" (PDF). Mammalian Species. 286 (286): 1-5. doi:10.2307/3503866 ...
Berta, A.; Churchill, M. (2012). "Pinniped Taxonomy: evidence for species and subspecies". Mammal Review. 42 (3): 207-234. doi: ... The genus Arctophoca is a proposed genus of pinnipeds, containing most species of fur seal. Usually, all fur seals are included ... while the genus Arctophoca is resurrected for the remaining species. This split is however not yet official. Yonezawa, T.; et ...
Grubb, P. (2005). "Order Artiodactyla". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and ... IUCN Red List of Threatened Species. 2018: e.T19832A50194357. Sokolov, V.E. (1974). "Saiga tatarica" (PDF). Mammalian Species ( ... This species was first described by Swedish zoologist Carl Linnaeus in the 12th edition of Systema Naturae (1766). Linnaeus ... Demand for the horns has wiped out the population in China, where the saiga antelope is a class I protected species, and drives ...
312-529 in Wilson, D.E., and Reeder, D.M. (eds.). Mammal Species of the World: a taxonomic and geographic reference. 3rd ed. ... 312-529 in Wilson, D.E., and Reeder, D.M. (eds.). Mammal Species of the World: a taxonomic and geographic reference. 3rd ed. ... The threat of invasive species to bats: a review. Mammal Review. de Ruiter, Maarten (January-February 1999). "Endangered Flying ... This species has been kept at Tama Zoological Park in Tokyo in the past. One individual died in 1998 and another in 1999, and ...
The Sado shrew (Sorex sadonis) is a species of mammal in the family Soricidae. It is endemic to Japan, and more specifically, ... Although it is sometimes referred to as its own species, more recent scholarship identifies it as a subspecies of the Shinto ... However, there are significant morphological differences between the species. Ohdachi, S. D.; Abe, H.; Oh, H. S.; Han, S. H. ( ... 2006 IUCN Red List of Threatened Species. Downloaded on 30 July 2007. v t e. ...
The species was described in 1935 by Ernst Mayr who noticed that earlier observers had overlooked it, thinking it was a ... Mammal Review. Heinsohn 2000, pp. 245-246. References BirdLife International (2012). "Haliaeetus sanfordi". IUCN Red List of ... As in other sea eagle species pairs, the other taxon is white-headed. These two are genetically very close, it seems; their ... Uniquely among sea eagles, this species has an entirely dark tail throughout its life. The breeding season is from August to ...
Mammal Study. 37 (1): 69-72. doi:10.3106/041.037.0109. S2CID 86238492. An image of this species. ... which was deemed great enough to warrant naming it as a new species. The species name "titania" is a reference to the character ... Bates, P. J.; Struebig, M. J.; Hayes, B. D.; Furey, N. M.; Mya, K. M.; Thong, V. D.; Csorba, G. (2007). "A new species of ... This species was first described from eastern Cambodia, with additional specimens from Vietnam, Myanmar, Laos, and Thailand. In ...
Berta, A.; Churchill, M. (2012). "Pinniped Taxonomy: evidence for species and subspecies". Mammal Review. 42 (3): 207-234. doi: ... Marine life portal Mammals portal Conservation of Seals Act 1970 (in the UK) Marine Mammal Protection Act (in the United States ... In the United States, the Marine Mammal Protection Act of 1972 prohibits the killing of any marine mammals and most local ... In: W.F. Perrin, B. Wursig and J.G.M. Thewissen (eds), Encyclopedia of Marine Mammals Academic Press. pp. 552-560. "Harbour ...
Berta, A. & Churchill, M. (2012). "Pinniped Taxonomy: evidence for species and subspecies". Mammal Review. 42 (3): 207-234. doi ... The two surviving species are now rare and in imminent danger of extinction. All three monk seal species were classified in ... Adam, Peter (July 2004). "Monachus tropicali". Mammalian Species. 747: 1-9. doi:10.1644/747. Encyclopedia of Marine Mammals, pp ... All three monk seal species were classified in genus Monachus until 2014, when comparison of the species' mitochondrial ...
Mammal Review. 46 (3): 160-174. doi:10.1111/mam.12060. BirdLife Species Factsheet v t e. ... The Oriental hobby (Falco severus) is a species of falcon typically 27-30 cm long. It can be found in the northern parts of the ... BirdLife International (2013). "Falco severus". IUCN Red List of Threatened Species. 2013. Retrieved 26 November 2013.old-form ...
Berta, A.; Churchill, M. (2012). "Pinniped Taxonomy: evidence for species and subspecies". Mammal Review. 42 (3): 207-234. doi: ... "Rapid Response of a Marine Mammal Species to Holocene Climate and Habitat Change". PLOS Genetics. 5 (7): e1000554. doi:10.1371/ ... The two species, the northern elephant seal (M. angustirostris) and the southern elephant seal (M. leonina), were both hunted ... Adult male elephant seals belonging to the northern species tend to have a larger proboscis, and thick chest area with a red ...
Marine life portal Mammals portal Campagna, C. (2008). "Mirounga angustirostris". IUCN Red List of Threatened Species. 2008. ... 7 "Mammals"". The Natural History of Ano Nuevo. Boxwood Press. ISBN 978-0910286770. Marine Mammal Center - Northern elephant ... Retrieved 28 January 2009.old-form url Beer, Encyclopedia of North American Mammals: An Essential Guide to Mammals of North ... "Marine Protected Species of the Mariana Islands" (PDF). National Marine Fisheries Service. January 2015. "Whale appearance!". ...
It was previously considered its own species, as Capricornis thar. It is the official state animal of the Indian state of ... Mammal Review. 49 (3): 256-262. doi:10.1111/mam.12154. Phan, T.D.; Nijhawan, S.; Li, S. & Xiao, L. (2020). "Capricornis ... sumatraensis". IUCN Red List of Threatened Species. 2020: e.T162916735A162916910. v t e. ...
Jefferson, T.A.; Leatherwood, S. & Webber, M.A. (1993): FAO species identification guide: Marine mammals of the world. United ... The species has rarely been seen in the wild. Some data supposedly referring to this species, especially juveniles and males, ... Nothing is known about breeding in this species. This species has never been hunted at all, and has not entangled itself in ... including the two species they were previously identified as. They were subsequently classified as a new species, Perrin's ...
Mammalian Biology 93: 76-81 Berta, A. & Churchill, M. (2012). "Pinniped Taxonomy: evidence for species and subspecies". Mammal ... Aquatic Mammals, 45,48-55. https://doi.org/10.1578/AM.45.1.2019.48 Marine Mammals > Species: Arctocephalus australis (South ... Marine life portal Mammals portal Campagna, C.; IUCN SSC Pinniped Specialist Group (2008). "Arctocephalus australis". IUCN Red ... National Audubon Society Guide to Marine Mammals of the World. Alfred A. Knopf, Inc. ISBN 0375411410.. ...
Grubb, P. (2005). "Order Artiodactyla". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and ... The Tibetan antelope is the only species of mammal where this adaptation has been documented. Tibetan antelope feed on forbs, ... In the Karakoram regions of Pakistan-administered Kashmir it is listed as an endangered species.[citation needed] Mammals ... A special adaptation of the species to its high altitude habitat is the retention of the fetal version of hemoglobin even in ...
Berta, A. & Churchill, M. (2012). "Pinniped Taxonomy: evidence for species and subspecies". Mammal Review. 42 (3): 207-234. doi ... Marine life portal Mammals portal Wozencraft, W.C. (2005). "Order Carnivora". In Wilson, D.E.; Reeder, D.M (eds.). Mammal ... Therefore, monitoring of the species as well as influences of human activity, will be vital to ensure species stability. There ... Folkens, Peter (2002). National Audubon Society Guide to Marine Mammals of the World. New York, pg. 117. National Marine Mammal ...
Mammal Review. 33 (1): 3-28. doi:10.1046/j.1365-2907.2003.00009.x. S2CID 52221241. "Sea Lion Species Removed from Endangered ... several salmon species, and rainbow trout, some of which are also listed under the U.S. Endangered Species Act. They are found ... it is inferior in size only to the walrus and the two species of elephant seals. The species is named for the naturalist Georg ... Marine life portal Mammals portal Eared seal Gelatt, T. and Sweeney, K. (2016). Eumetopias jubatus. The IUCN Red List of ...
Eds.). Mammal species of the world: a taxonomic and geographic reference. Baltimore: Johns Hopkins University Press. p. 312- ... J. Mammal., vol. 85, no. 1, p. 133-139. [4] Studier, E.H. and Wilson, D.E. 1970. Thermoregulation in some Neotropical bats. ... J. Mammal., Vol. 51, no. 1, p. 203. [6] [7] Wilson, D.E. and Findley, J.S., 1970. Reproductive cycle of a Neotropical ... The black myotis (Myotis nigricans), is a vesper bat species from South and Central America. Its body is dark brown/black. The ...
The Cape hairy bat forages for aerial insects along the edges of vegetation, where it captures species from the insect orders ... CS1 maint: discouraged parameter (link) "Myotis tricolor". Mammal's Planet. Charles Boudet. Archived from the original on 2016- ... The Cape hairy bat is a sociable species which roosts in caves. It switches between winter hibernation roosts and summer ... "Myotis tricolor". IUCN Red List of Threatened Species. Retrieved 2016-11-14. CS1 maint: discouraged parameter (link)old-form ...
It is an IUCN Red List Near Threatened species because its extent of occurrence is less than 20,000 km²; it is known only from ... Mammal Review. 47 (3): 169-182. doi:10.1111/mam.12090. ISSN 0305-1838. S2CID 90182083. v t e. ... The Halmahera blossom bat (Syconycteris carolinae) is a species of megabat in the family Pteropodidae. The bat is endemic to ... A 2017 study ranked the species as the 8th highest research priority among island endemic bats based on conservation situation ...
J Mammal. 79:1221-1233. TerraNaturalist channel on YouTube Video shows several bird species and caching behavior.. ... Although a small handful of species share food stores, food hoarding is a solo endeavor for most species, including almost all ... animals of the same or closely related species) and members of other species. Most commonly, the function of hoarding or ... Some species experience high levels of cache pilferage, up to 30% of the supply per day. Models of scatter hoarding suggested ...
a b «Mammal Species of the World - Browse: taurus» www.departments.bucknell.edu (Noiz kontsultatua: 2020-09-08). ...
... s are steroid acids found predominantly in the bile of mammals and other vertebrates. Diverse bile acids are ... Cholic acid, 3α,7α,12α-trihydroxy-5β-cholan-24-oic acid, the most abundant bile acid in humans and many other species, was ... Synthesis of bile acids is a major route of cholesterol metabolism in most species other than humans. The body produces about ... Chenodeoxycholic acid is made by many species, and is the prototypic functional bile acid.[2][3] ...
... is both a recreation area and a wildlife sanctuary that is home to hundreds of bird species, mammals, reptiles, and aquatic ... species.[34] Houston Raceway is a motorsports complex featuring National Hot Rod Association (NHRA) races and a weekly drag ...
Mammals possess four similar homeobox gene clusters, HOXA, HOXB, HOXC and HOXD, located on different chromosomes, consisting of ...
While the earliest mammals were probably predators, different species have since adapted to meet their dietary requirements in ... larger mammals, such as bears, become polyphagic to increase fat stores, whereas smaller mammals prefer to collect and stash ... Flamingos, three species of prion, and some ducks are filter feeders.[50][51] Geese and dabbling ducks are primarily grazers. ... Some species, including frigatebirds, gulls,[52] and skuas,[53] engage in kleptoparasitism, stealing food items from other ...
"In Wilson, D.E.; Reeder, D.M. Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins ... "European Mammals - Non native and Introduced Species". Hows.org.uk. Retrieved 2018-06-04.. ... "IUCN Red List of Threatened Species. Version 2008. International Union for Conservation of Nature. Retrieved 8 April 2009.. ... The species is not native, but a few small deer farms in the southeastern United States have successfully bred water deer.[ ...
... turtle as well as a rich terrestrial mammal fauna composed of various species of bats and the enigmatic Saint Bathans Mammal. ... Prominent genus was Allodesmus.[26] A ferocious walrus, Pelagiarctos may have preyed upon other species of pinnipeds including ... A few basal mammal groups endured into this epoch in southern landmasses, including the south american dryolestoid Necrolestes ... Mammals and birds were well-established. Whales, pinnipeds, and kelp spread.. The Miocene is of particular interest to ...
Linnaeus, C. (1758). Systema Naturæ per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, ... The magpie is omnivorous, eating young birds and eggs, small mammals,[41] insects, scraps and carrion, acorns, grain, and other ... These results imply that the species Pica pica is not monophyletic.[15] A more recent study using both mitochondrial and ... "IUCN Red List of Threatened Species. International Union for Conservation of Nature. Retrieved 20 July 2018.. .mw-parser-output ...
Inactivity and starvation in mammals lead to atrophy of skeletal muscle, accompanied by a smaller number and size of the muscle ... Bears are an exception to this rule; species in the family Ursidae are famous for their ability to survive unfavorable ... Such consequences are also noted in small hibernating mammals like the golden-mantled ground squirrels and brown bats. ...
However, the high rates of death in these species resulting from EBOV infection make it unlikely that these species represent a ... December 1999). "Identification of Ebola virus sequences present as RNA or DNA in organs of terrestrial small mammals of the ... but was the same EBOV species, the Zaire species.[177] It began in August 2014, and was declared over in November with 66 cases ... In 2000, Uganda had an outbreak infecting 425 and killing 224; in this case, the Sudan virus was found to be the Ebola species ...
In mammals, the respiratory network system and the nuclei controlling breathing modulation are found along the neuronal axis. ... Their actions are diverse and dependent upon the activity level and species of the animal. Serotonin plays a critical role in ... This complex has been proven to be essential for the generation of respiratory rhythm in mammals. The exact mechanism of the ... plays an important role in regulating respiration in mammals. It is one of the four cell groups of the Ventral Respiratory ...
In number of species, they are more successful than mammals, though they occupy a smaller range of habitats. However, it is ... Some terrestrial species lack both lungs and gills and perform gas exchange through their skin. Even some species with lungs ... Respiration differs between species of salamanders. Species that lack lungs respire through gills. In most cases, these are ... unlike the more complex organs found in mammals. Many species, such as the Olm, have both lungs and gills as adults.[12] ...
Many great mammals such as woolly mammoths, woolly rhinoceroses, and cave lions inhabited the mammoth steppe during the ... Hominin fossils not belonging either to Homo neanderthalensis or to Homo sapiens species, found in the Altai Mountains and ... Nowak, Ronald M. (1999). Walker's Mammals of the World. Baltimore: Johns Hopkins University Press. ISBN 0-8018-5789-9.. ... Bird and other animal species produce music such as calls to attract mates.[82] This hypothesis is generally less accepted than ...
2005). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 676. ... Estes, R. D. (1993). The Safari Companion : A Guide to Watching African Mammals, Including Hoofed Mammals, Carnivores and ... Estes, R. D. (2004). The Behavior Guide to African Mammals : Including Hoofed Mammals, Carnivores, Primates (4. [Dr.]. ed.). ... Estes, R. D. (2004). The Behavior Guide to African Mammals: Including Hoofed Mammals, Carnivores, Primates (4. [Dr.]. ed.). ...
Temperature and Water Relations in Two Species of Spiny Mice (Acomys). Journal of Mammalogy. 1969, 50 (2): 245. JSTOR 1378340. ... Hoath, R. A. (2004) Field Guide to the Mammals of Egypt. The American University in Cairo Press, Cairo and New York .mw-parser- ... This means that it could survive drinking 海水, which is very rare in mammals.[6] ...
"Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 29 August 2014. ... most mammals, birds, snakes and other frogs will leave the pickerel frog alone. The skin secretions of a stressed pickerel frog ... 1825). "Remarks on the American species of the genera Hyla and Rana ". Ann. Lyceum. Nat. Hist. New-York [sic] 1: 278-282. (Rana ... "IUCN Red List of Threatened Species. Version 2014.2. International Union for Conservation of Nature. Retrieved 29 August 2014. ...
Wassarman PM, Jovine L, Litscher ES (2001). "A profile of fertilization in mammals". Nat. Cell Biol. 3 (2): E59-64. doi:10.1038 ...
Pleistocene species extinctions. *Mammals described in 1959. *Fossil taxa described in 1959 ... The molar teeth were very large, with an area over twice that of modern humans.[7] The species is sometimes referred to as " ... The diet of fruits and nuts that P. boisei would have eaten is reflected by its classification as a cosmopolitan species, ... Paranthropus boisei (as the species was eventually categorized) proved to be a treasure, especially when the anthropologists' ...
Colour vision appears to vary from species to species, for example being present in O. aegina but absent in O. vulgaris.[47] ... Having independently evolved mammal-like intelligence, octopuses have been compared to hypothetical intelligent ... The reproduction of octopuses has been studied in only a few species. One such species is the giant Pacific octopus, in which ... The cirrate species are often free-swimming and live in deep-water habitats.[32] No species are known to live in fresh water.[ ...
The number and ratio of rods to cones varies among species, dependent on whether an animal is primarily diurnal or nocturnal. ... The pineal and parapineal glands are photoreceptive in non-mammalian vertebrates, but not in mammals. Birds have photoactive ... These events take place at different time periods for different species and include a complex pattern of activities that bring ... Dennis Dacey with colleagues showed in a species of Old World monkey that giant ganglion cells expressing melanopsin projected ...
The type species, Herrerasaurus ischigualastensis, was described by Osvaldo Reig in 1963[2] and is the only species assigned to ... Sereno, P.C.; Novas, F.E.; Arcucci, A.B.; C. Yu (1988). "New evidence on dinosaur and mammal origins from the Ischigualasto ... but this species too is now thought to be a synonym.[14] Frenguellisaurus ischigualastensis was discovered in 1975, and was ...
Other genes from various species have been inserted into the tomato with the hope of increasing their resistance to various ... especially in relation to the perceived ethical dilemma of combining genes from different species. This tomato gained the ...
... as species diversity increases, together with the linkages or dependencies between species. ... "Relationship between genome size and organismal complexity in the lineage leading from prokaryotes to mammals". Paleontological ... Dawkins, Richard; Krebs, J. R. (1979). "Arms Races between and within Species". Proceedings of the Royal Society B. 205 (1161 ... When species do evolve, it is not out of need but rather because their populations contain organisms with variants of traits ...
In Europe, known reservoirs of Borrelia burgdorferi were 9 small mammals, 7 medium-sized mammals and 16 species of birds ( ... "Borrelia species in host-seeking ticks and small mammals in northern Florida". Journal of Clinical Microbiology. 42 (11): 5076- ... "two species of Rickettsia and two species of Borrelia were identified".[158] ... The tendency of this tick species to feed predominantly on host species such as the Western Fence Lizard that are resistant to ...
Butterfly species have declined by 58% on farmland in England. In the last ten years, 40% of insect species and 22% of mammal ... See also: IUCN Red List extinct in the wild species, List of endangered species, and List of critically endangered species ... Uncounted species - not just tigers, gibbons, rhinos, and saola, but vast numbers of smaller mammals, amphibians, birds, and ... The existence of Africa's many species of mammals is thus not due to an optimal climate and environment, but rather because it ...
The fossil eutherian species believed to be the oldest known is Juramaia sinensis, which lived about 160 million years ago.[3] ... "Mammal madness: is the mammal tree of life not yet resolved?". Phil. Trans. R. Soc. B. 371 (1699): 20150140. doi:10.1098/rstb. ... The oldest-known eutherian species is Juramaia sinensis, dated at 161 million years ago from the early Late Jurassic (Oxfordian ... Rose, Kenneth D. (2006). The beginning of the age of mammals. Baltimore: Johns Hopkins University Press. ISBN 9780801892219. . ...
These compounds can be described as involving the alkali metals losing electrons to acceptor species and forming monopositive ... Pinsky, Carl; Bose, Ranjan; Taylor, J. R.; McKee, Jasper; Lapointe, Claude; Birchall, James (1981). "Cesium in mammals: Acute ... because the hydron is by far the most important of all monatomic hydrogen species, being the foundation of acid-base chemistry. ...
"Mammal Species of the World : Lupus". Bucknell University. 2013. Retrieved 14 August 2013.. ... 2000) propose that red wolves and C. lupus lycaon should be a separate species, C. lycaon, with their minor differences ... Canid hybrids are the result of interbreeding between different species of the canine (dog) family (genus Canis). They often ... Robert Armitage Sterndale mentioned experimental golden jackal/dog hybrids from British India in his Natural History of Mammals ...
... as well as birds and mammals in the Americas. The map gallery Gridded Species Distribution contains sample maps for the Species ... A similar concept is the species range. A species range is often represented with a species range map. Biogeographers try to ... A species range map represents the geographical region where individuals of a species can be found. This is a range map of ... Species Distribution Grids ProjectEdit. The Species Distribution Grids Project is an effort led out of the University of ...
Genetics and the origin of species. Columbia N.Y. *↑ Fiers W.; et al. (1976). "Complete nucleotide-sequence of bacteriophage ... Mammal, Homo sapiens 3×109 Fish, Protopterus aethiopicus aka marbled lungfish 1.3×1011 Largest vertebrate genome known ... However, no single haploid chromosome set defines even the DNA of a species. Because of the huge variety of alleles carried by ... The genome of a haploid chromosome set is merely a sample of the total genetic variety of a species. ...
The puma, a member of the family Felidae, has the widest distribution of any New World mammal, with a range extending from ... P. concolor is the only species of the genus Puma. Until 1995 pumas were classified in the genus Felis, which formerly included ... The puma, a member of the family Felidae, has the widest distribution of any New World mammal, with a range extending from ... When feeding on a large mammal, it minimizes spoilage and loss to scavengers by dragging the carcass to a secluded cache site ...
Active Server Pages error ASP 0113 Script timed out /msw3/search.asp The maximum amount of time for a script to execute was exceeded. You can change this limit by specifying a new value for the property Server.ScriptTimeout or by changing the value in the IIS administration tools. ...
Mammalian species are known to last an average 2.5 million years before being snuffed out - and scientists may have discovered ... Earths wobble killed off mammal species. Earth 11 October 2006 Mammalian species are known to last an average of 2.5 million ...
LSU Museum of Natural Science Curator of Mammals Jake Esselstyn and his international collaborators have discovered a new genus ... and species on a remote, mountainous island in Indonesia. This new discovery is the third new genus described by this group of ... LSU Museum of Natural Science Curator of Mammals Jake Esselstyn BATON ROUGE - LSU Museum of Natural Science Curator of Mammals ... It was obviously a new species. We came back to camp and were both surprised that the other one had it as well," Esselstyn said ...
Mammal Species of the World: A Taxonomic and Geographic Reference is a standard reference work in mammalogy giving descriptions ... 2005). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. ISBN 978-0- ... and bibliographic data for the known species of mammals. It is now in its third edition, published in late 2005, which was ... An online version is hosted by Bucknell University, from which the names of the species can be downloaded as a custom ...
Marine mammals comprise over 130 living and recently extinct species in three taxonomic orders. The Society for Marine ... Cetacean Species and Taxonomy. iucn-csg.org "The Society for Marine Mammalogys Taxonomy Committee List of Species and ... the largest international association of marine mammal scientists in the world. See Cetartiodactyla and Marine mammal articles ... Conservation status codes listed follow the IUCN Red List of Threatened Species (v. 2014.3; data current at 19 January 2015) ...
Multiple new species of large, living mammal (part II). More on Marc van Roosmalens new Amazonian mammals: in the previous ... Multiple new species of large, living mammal (part III). Yet more on the multiple new Amazonian mammals that have been ... Multiple new species of large, living mammal (part IV). Yet more on Marc van Roosmalens new Amazonian mammals, first disclosed ... Mammalian Species 481, 1-8.. Patterson, B. D. 2000. Patterns and trends in the discovery of new Neotropical mammals. Diversity ...
Peru (55 threatened mammal species). Peru has a list of 55 threatened mammal species living in its forests and mountains. ... 6. China (74 threatened mammal species). China has its own set of 74 threatened mammal species in its denuded forests and ... 8. Colombia (56 threatened mammal species). Colombia has a list of 56 threatened mammal species in its mountains and forests. ... 7. Malaysia (70 threatened mammal species). Malaysia is beset by its prevalence of 70 threatened mammal species, which are ...
Mammals. Overview Top 100 Focal Species Potential EDGE Species Top 10 ED Species Recent Extinctions Possibly Extinct Search ... Species of Natalus are characterized by funnel-like ears and a tail about equal in length to the head and body. N. primus is ... This species occurs in a hot cave": a cave with poor ventilation and nearly constant high temperatures (26-40°C) and humidity ... In particular, the ears of N. primus are very large relative to those of other species (20.2-21.2 mm length). Males of N. ...
... miles by a whale identified as a critically endangered species that raises questions about its status as a distinct species. ... A team of scientists from the United States and Russia has documented the longest migration of a mammal ever recorded -- a ... Longest mammal migration raises questions about distinct species. Oregon State University. Journal. Biology Letters. Funder. US ... A team of scientists from the United States and Russia has documented the longest migration of a mammal ever recorded - a round ...
Mammal Species of the World: Information on sungorus ...
... Citation. National Museum of Natural History, Smithsonian Institution. Mammal Species of the World ... The data in this checklist of mammal species of the world are being presented for non-commercial, personal, and collections ... Division of Mammals, Natural History Museum, Smithsonian. email: [email protected] homepage: http://vertebrates.si.edu/other_vz_ ...
"Countries Compared by Environment > Threatened species > Mammal. International Statistics at NationMaster.com", Jacaranda Atlas ... "Countries Compared by Environment > Threatened species > Mammal. International Statistics at NationMaster.com, Jacaranda Atlas ... Countries Compared by Environment > Threatened species > Mammal. International Statistics at NationMaster.com, Jacaranda Atlas ... "Countries Compared by Environment > Threatened species > Mammal. International Statistics at NationMaster.com", Jacaranda Atlas ...
... and the Endangered Species Act (ESA), as applicable. ... been issued to the following entities under the Marine Mammal ... Marine Mammals and Endangered Species. A Notice by the National Oceanic and Atmospheric Administration on 05/12/2021 ... Notice is hereby given that permits and permit amendments have been issued to the following entities under the Marine Mammal ... the regulations governing the taking and importing of marine mammals (50 CFR part 216), the ESA of 1973, as amended (16 U.S.C. ...
Sand Dunes 10 Crazy-Looking New Deep-Sea Creatures New Giant Lizard Discovered in the Philippines New Titi Monkey Species ... Discovered In Amazon A Third of Extinct Mammals May Still Be Alive ... New Species of Frogs Disappearing as Fast as Theyre Found Giant Spider Species Discovered in Middle Eastern ... 200 New Species of Frogs, Spiders, Mammals and More Discovered. In just two months of searching through a remote, mountainous ...
... to give a wealth of information about hundreds of mammal species living in North America. How to find, identify, measure, and ... 2003 National Outdoor Book Award Winner - Detailed track and trail data for 135 species with actual-size track illustrations in ... interpret the clues mammals leave behind--explained and illustrated like never before. Includes essays that contextualize ...
Number: Mammal species are mammals excluding whales and porpoises. Threatened species are the number of species classified by ... www.nationmaster.com/country-info/groups/Former-Spanish-colonies/Environment/Endangered-species/Mammal-species (as of 2008) ... www.nationmaster.com/country-info/groups/Former-Spanish-colonies/Environment/Endangered-species/Mammal-species (last visited ... www.nationmaster.com/country-info/groups/Former-Spanish-colonies/Environment/Endangered-species/Mammal-species, [assessed 2008] ...
Families with new species. Genera with new species. New species. New species with restricted distribution. New species probably ... Patterns of distribution in new species of mammals. (A) Species richness, n = 408. (B) Restricted-range species, n = 221. (C) ... Taxonomic composition of the new species of mammals (excluding marine species) discovered since 1993 ... Discoveries of new mammal species and their implications for conservation and ecosystem services. Gerardo Ceballos and Paul R. ...
World is the classic reference book on the taxonomic classification and distribution of the more than 5400 species of mammals ... work belongs in public and academic libraries throughout the world and on the shelf of every biologist who works with mammals. ... Mammal Species of the World: A Taxonomic and Geographic Reference, Volume 1. Mammal Species of the World: A Taxonomic and ... Mammal Species of the World: A Taxonomic and Geographic Reference, Volume 2. Don E. Wilson,DeeAnn M. Reeder. No preview ...
... marine mammals, or both. We issue these permits under the Endangered Species Act (ESA) and Marine Mammal Protection Act (MMPA). ... have issued the following permits to conduct certain activities with endangered species, ... marine mammals, or both. We issue these permits under the Endangered Species Act (ESA) and Marine Mammal Protection Act (MMPA). ... Endangered Species; Marine Mammals; Issuance of Permits. A Notice by the Fish and Wildlife Service on 05/12/2011. ...
The Mammal Society has been working with 52 other wildlife organisations to present the clearest picture to… ... Copyright © 2019 The Mammal Society, 18 St Johns Church Road, London, E9 6EJ.... Registered Company No. 1455136 Charity No. ... Filed Under: News, Press Releases Tagged With: conservation, extinction, state of nature, UK species ... More than one in ten UK species threatened with extinction, new study finds. 14th September 2016. ...
Rabbit distribution (in green), taken from Britains Mammals 2018: The Mammal Societys Guide to their Population and ... Species - Rabbit. Rabbit - Oryctolagus cuniculus. Taxon: Lagomorpha. European Rabbit Red List Classification: ... Confusion species. Brown hare (Lepus europaeus). Amber eyes, very different to rabbits brown eyes. Brown hare is larger than ... Subscribe to our mailing list and receive regular e-bulletin packed full of mammal news and ways you can get involved with ...
... dire wolves and other large mammal species in North America drove surviving species to distance themselves from their neighbors ... When a series of large mammal species began going extinct roughly 12,000 years ago, many surviving species began going their ... Surviving mammal species often responded by distancing themselves from their neighbors, the study found, potentially reducing ... Led by Macquaries Anikó Tóth, the team analyzed records of 93 mammal species at hundreds of fossil sites during three ...
9 - 1.08 m (3 - 3.6 ft). Habitat. Widespread throughout Northwestern Ontario in and around forest clearings and in low shrub-covered areas; sometimes near farms.. Diet. The diet of the red fox is only limited by what is available at any given time. They may eat only berries and nuts when they are in season. At other times, they will eat small rodents, birds, eggs, frogs and even insects. They will often scavange left-over carcasses of larger game abandoned by wolves or bears. On occasion, they will even snatch a chicken from a farm yard.. Notes. With the exception of breeding season, red foxes are for the most part solitary hunters and stay in their home range for the most part of their lives. Red foxes have been identified as a major carrier of rabies which sometimes breaks out in epidemic proportions. However, in recent years, outbreaks of rabies have been controlled to some extent by dropping medicated tid-bits from aircraft to inoculate fox populations. ...
Multiple Causes of High Extinction Risk in Large Mammal Species. By Marcel Cardillo, Georgina M. Mace, Kate E. Jones, Jon ... Large mammals weighing more than 3 kilograms are more likely than smaller species to go extinct in response to human-induced ... Multiple Causes of High Extinction Risk in Large Mammal Species. By Marcel Cardillo, Georgina M. Mace, Kate E. Jones, Jon ... Large mammals weighing more than 3 kilograms are more likely than smaller species to go extinct in response to human-induced ...
Mammals may be a good example of how sex chromosome change drove major groups apart. ... How new species are created is at the core of the theory of evolution. ... How new species are created is at the core of the theory of evolution. Mammals may be a good example of how sex chromosome ... Mammals may be a good example. Comparisons of the sex chromosomes of the three major mammal groups show that there were two ...
Gabon - Mammal species, threatened - actual values, historical data, forecasts and projections were sourced from the ,a href= ... Mammal species, threatened in Gabon was reported at 18 in 2018, according to the World Bank collection of development ... Mammal species are mammals excluding whales and porpoises. Threatened species are the number of species classified by the IUCN ... Mammal species, threatened in Gabon was reported at 18 in 2018, according to the World Bank collection of development ...
... scientists announced the identification of a new mammal species, the olinguito. In the raccoon family, Bassaricyon neblina is ... the first mammalian carnivore species to be added in the Americas in 35 years, scientists at the Smithsonian Institution in ... Described as a cross between a house cat and a teddy bear, scientists announced the identification of a new mammal species, the ... "If new carnivores can still be found, what other surprises await us? So many of the worlds species are not yet known to ...
The hair microstructures of Korean terrestrial mammals from 23 species (22 wild and one domestic) were analyzed using light and ... We found that it is possible to distinguish between species and order based on general appearance, medulla structures and ... Thus, we constructed a hair identification key with morphological characteristics from each species. This study suggests that ...
Western African Aquatic Mammals. Memorandum of Understanding concerning the Conservation of the Manatee and Small Cetaceans of ...
  • Marine mammals comprise over 130 living and recently extinct species in three taxonomic orders. (wikipedia.org)
  • Over the last 200 years, Australia has seen one in ten of its indigenous mammals go extinct. (worldatlas.com)
  • Extinct Natalus populations known from the recent fossil record of the Bahamas and Grand Cayman may also represent this species. (edgeofexistence.org)
  • Scientists from Australia's University of Queensland and the Queensland government suspect the Bramble Cay melomys, a small rodent likely only found on the island of Bramble Cay, is the first species to go extinct because of climate change. (inhabitat.com)
  • They finally concluded the Bramble Cay melomys is very likely extinct, and is possibly the first mammal species to perish because of climate change caused by humans. (inhabitat.com)
  • When a series of large mammal species began going extinct roughly 12,000 years ago, many surviving species began going their separate ways, says new research led by Macquarie University and the University of Nebraska-Lincoln. (eurekalert.org)
  • Large mammals weighing more than 3 kilograms are more likely than smaller species to go extinct in response to human-induced environmental changes. (sciencemag.org)
  • Within the latter clade, T. kabomani is recovered as outside a clade that contains the Mountain tapir T. pinchaque , T. terrestris and the extinct Pleistocene and Holocene Brazilian species T. cristatellus . (scientificamerican.com)
  • Researchers from the Institute of Vertebrate Paleontology and Paleoanthropology (IVPP) of the Chinese Academy of Sciences and the American Museum of Natural History (AMNH) have reported a new species of multituberculate-a type of extinct Mesozoic rodent-with well-preserved middle ear bones from the Cretaceous Jehol Biota of China. (unexplained-mysteries.com)
  • Phys.org) -A pair of researchers at Australian National University is suggesting in a paper they have had published in the journal Biology Letters , that in some instances, medium sized mammals may be more at risk of going extinct than larger or smaller species. (phys.org)
  • Instead, V. antiquus provides evidence for the independent origin of flight in this now-extinct lineage of mammals, the researchers conclude. (livescience.com)
  • While a mere 3.5 mm tooth, especially an incomplete one, may seem insufficient to describe a new species of mammal, in actual, fact extinct mammals are frequently described on the basis of a single fossilized tooth. (eurasiareview.com)
  • The extinction of mammoths, saber-toothed cats and other large mammal species disrupted ecosystem dynamics across North America, according to a new study in the journal Science. (eurekalert.org)
  • Published Sept. 20 in the journal Science , the study analyzed distributions of mammal fossils across North America following the last ice age, after the retreat of massive glaciers that had encroached south to the modern-day United States. (eurekalert.org)
  • Specific species were identified using a Field Guide to Mammals of North America (Reid 2006). (epa.gov)
  • Mammals successfully thrive in the four great desert regions of North America: the Great Basin, the Mojave, the Sonoran and the Chihuahuan Deserts. (livescience.com)
  • The pronghorn ( Antilocapra americana ) is thefastest mammal found in North America. (livescience.com)
  • The California leaf-nosed bat is the only species of bat in North America known to catch caterpillars. (livescience.com)
  • with a few genera having relatively recently crossed the Panamanian isthmus and one species (the Virginia opossum) reaching northern North America. (peerj.com)
  • Although the species remains relatively abundant in its only known cave roost, it has a high extinction potential due to its probable limited capacity for dispersal. (edgeofexistence.org)
  • Many large animal species have a high risk of extinction. (sciencemag.org)
  • In a broad-scale analysis of extinction risk in mammals, we find two additional patterns in the size selectivity of extinction risk. (sciencemag.org)
  • Second, whereas extinction risk in smaller species is driven by environmental factors, in larger species it is driven by a combination of environmental factors and intrinsic traits. (sciencemag.org)
  • Conservation of these forests and reforestation is very important to prevent the extinction of the species. (thehindu.com)
  • We protect wildlife in Britain and around the world by bringing our most threatened species back from the brink of extinction. (ptes.org)
  • We strive to bring our most threatened species in the UK and around the world back from the brink of extinction. (ptes.org)
  • Of the 129 species of marine mammals on Earth, including seals, dolphins and polar bears, approximately one-quarter are facing extinction, the study said. (enn.com)
  • To pinpoint areas of the ocean where conservation could protect the maximum number of species and the ones most vulnerable to extinction, the researchers overlaid maps of where each marine mammal species is found. (enn.com)
  • The researchers identified the 20 conservation sites based on three main criteria: how many species were present, how severe the risk of extinction was for each species and whether any of the species were unique to the area. (enn.com)
  • It is also the first recorded extinction of a mammal anywhere in the world thought to be primarily due to human-caused climate change. (theguardian.com)
  • An expert says this extinction is likely just the tip of the iceberg, with climate change exerting increasing pressures on species everywhere . (theguardian.com)
  • The authors said the IUCN lists one other mammal that was driven to extinction, partly by extreme weather - the Little Swan Island hutia - but introduced cats on the island were considered the main driver of extinction. (theguardian.com)
  • With extinction rates increasing, it's extremely important to be able to find new species before they disappear if we want to be able to understand the world that we're living in," said lead author Molly Fisher, a doctoral student in the Odum School of Ecology. (uga.edu)
  • Some of the species that are present in the Park are rare and at risk of extinction. (parconazionaledelvesuvio.it)
  • Plotted out, they note, the data shows a hump shaped curve in extinction probability when predators are taken into account, because they tend to target medium-sized prey-smaller mammals are too hard to catch, and the larger ones are too difficult to bring down. (phys.org)
  • The team's results are the first to link medium-sized mammals with an increased risk of extinction due to predation in a changing environment. (phys.org)
  • Globally, elevated extinction risk in mammals is strongly associated with large body size. (phys.org)
  • However, in regions where introduced predators exert strong top-down pressure on mammal populations, the selectivity of extinctions may be skewed towards species of intermediate body size, leading to a hump-shaped relationship between size and extinction risk. (phys.org)
  • Here, we test the hypothesis of a hump-shaped body size-extinction relationship, using a database of 927 island mammal populations. (phys.org)
  • These findings suggest that it will be difficult to use predictable generalizations about extinction patterns, such as a positive body size-extinction risk association, to anticipate future species declines and plan conservation strategies accordingly. (phys.org)
  • To hunt a species to extinction is not logical. (guardianlv.com)
  • The researchers say the knowledge gaps likely apply to other animal groups such as insects and amphibians, which are far less well-studied than mammals yet also vulnerable in the face of the Earth's unfolding mass extinction . (cosmosmagazine.com)
  • However, as a result of overexploitation for consumption of its meat and scales, this species is now moving closer to extinction, which is having a devastating impact on the world's remaining pangolins. (iucn.org)
  • A ) Species richness, n = 408. (pnas.org)
  • Some orders have either more (*) or fewer (**) new species than expected by their species richness. (pnas.org)
  • Do you see marine mammals such as porpoises, whales and dolphins while you are spending time on or by the ocean?Those observations add to the richness of life in this part of Vancouver Island, but, if you take the time to report them to the BC Cetacean Sightings Network, they can also make a valuable contribution to marine science and species protection. (comoxvalleyrecord.com)
  • Their composite map revealed locations with the highest "species richness" -- the highest number of different species. (enn.com)
  • This is the first time that the global distribution of marine mammal richness has been compiled and presented as a map," said co-authors Sandra Pompa and Gerardo Ceballos of the National Autonomous University of Mexico. (enn.com)
  • In this context, we evaluated medium and large mammal species richness and composition in gallery forest (n = 10), grassland (n = 10), and exotic tree plantation (n = 10) in a region where grasslands have been converted into exotic tree plantations. (scielo.br)
  • We quantified mammal species richness and composition with camera traps and track surveys. (scielo.br)
  • Our results showed significant differences in mammal species richness and composition among the three habitat types. (scielo.br)
  • The most important habitat and landscape variables that influenced mammal species richness and composition were vertical structure index, canopy cover, tree species diversity, percentage of grass, and the percentage of forest and grassland at the landscape scale of 0.1 km. (scielo.br)
  • Of four dominant hosts, the species richness of mites was highest on Eothenomys miletus ( S = 165) and Shannon-Wiener diversity index was highest on Rattus norvegicus ( H = 3.13). (springer.com)
  • Along latitude gradients, species richness of chigger mites increased first and then decreased, peaking at 25° to 26° N with 193 mite species. (springer.com)
  • Newmark, William D. 1986-05-01 00:00:00 The relationship between non‐volant mammalian species richness and area in 24 western North American national parks is examined. (deepdyve.com)
  • Support exists for both hypotheses based upon partial correlation analysis of non‐volant mammalian species richness with area, elevational range, latitude, number of vegetative cover types and index of vegetative cover diversity. (deepdyve.com)
  • I conclude that area per se and habitat diversity defined as environmental heterogeneity are the best predictors of non‐volant mammalian species richness in western North American national parks. (deepdyve.com)
  • I also conclude that vegetative cover diversity is a poor predictor of mammalian species richness in western North American national parks. (deepdyve.com)
  • The relationship between non‐volant mammalian species richness and area in 24 western North American national parks is examined. (deepdyve.com)
  • Although further data are needed to solidify understanding of Methateria phylogeny, the new phylogenetic hypothesis provided here offers a well resolved and detailed tool for comparative analyses, covering the majority of the known species richness of the group. (peerj.com)
  • PD is arguably a more meaningful measure of biodiversity than simple species richness [ 18 ] because differences among genotypes are the raw material on which evolutionary processes operate. (royalsocietypublishing.org)
  • The genus Natalus is represented in the Greater Antilles today by three distinct species, each endemic to a single island (Cuba, Hispaniola and Jamaica), which were formerly thought to be conspecific before detailed morphometric and genetic analyses were carried out. (edgeofexistence.org)
  • The species is endemic to central Mexico, and found on the slopes of only four volcanoes across the Tansverse Neovolcanic Belt (TNB) - Popocatepetl and Iztaccihuatl (Sierra Nevada), and El Pelado and Tlaloc (Sierra Chichinautzin). (edgeofexistence.org)
  • As the authors note, the results are surprising in placing the Baird's tapir T. bairdii and Malayan tapir T. indicus together (in a clade that contains the North and Central American fossil species T. polkensis , T. haysii and T. veroensis ), and as the sister-group to a clade that contains endemic South American species. (scientificamerican.com)
  • Human-caused climate change appears to have driven the Great Barrier Reef's only endemic mammal species into the history books, with the Bramble Cay melomys , a small rodent that lives on a tiny island in the eastern Torres Strait, being completely wiped-out from its only known location. (theguardian.com)
  • It had the most isolated and restricted range of any Australian mammal, and was considered the only mammal species endemic to the Great Barrier Reef . (theguardian.com)
  • The country has many endemic animal species that can only be found in Japan, but unfortunately, many of these mammals are endangered or critically endangered. (worldatlas.com)
  • This species is also endemic to the country of Japan and can only be found on the two islands of Amami-Oshima and Tokuno-Shima. (worldatlas.com)
  • This species is also endemic to Japan and is only found on the five islands of Chichi-jima, Haha-jima, Kita-Iwo-jima, Iwo and Minami-Iwo-jima. (worldatlas.com)
  • Just like the other mammal species covered here, the Iriomote Cat is also endemic to Japan. (worldatlas.com)
  • Ash Meadows National Wildlife Refuge (Ash Meadows NWR), a spring-fed wetlands and alkaline desert system located in the Mojave Desert in Nye County, Nevada, supports 25 species of endemic plants and animals (5 currently listed as federally endangered). (secheresse.info)
  • Restoration projects are currently being developed because of the endangered endemic species. (secheresse.info)
  • Enforcement of laws protecting the species, development of effective habitat management programmes, and creation of habitat corridors to link isolated populations. (edgeofexistence.org)
  • The reigning theory is that physically separated populations of one species drift apart gradually. (cosmosmagazine.com)
  • So could such barriers drive apart populations to form distinct species? (cosmosmagazine.com)
  • But it was thoroughly dismissed by evolutionary geneticists in favour of the idea that speciation, the formation of new and distinct species, must occur in populations already separated by a physical barrier such as a river or mountains, or behaviour such as mating time, and occupied different environments. (cosmosmagazine.com)
  • Two species of lagomorphs have been identified today: the wild rabbit (Oryctolagus cuniculus), with populations mainly in the woods, and the European hare (Lepus europaea), introduced in the past for hunting purposes and now widespread in most of the territory. (parconazionaledelvesuvio.it)
  • In all, they looked at 928 populations of mammals that included 100 different species. (phys.org)
  • In looking at the data, they found a pattern emerging-medium-sized mammal populations declined more rapidly than did bigger or smaller species when they served as the prey for fox and cats (larger animal populations declined faster than all other sized mammals when there were few to no predators). (phys.org)
  • Most species feed on a variety of other species, as this allows them to survive fluctuations in the food species populations. (earthlife.net)
  • Assessments of the fate of natural mammal populations under climate change need to account for multiple demographic responses," Paniw explains. (cosmosmagazine.com)
  • It was confirmed that populations of each species are in steep decline. (iucn.org)
  • BATON ROUGE - LSU Museum of Natural Science Curator of Mammals Jake Esselstyn and his international collaborators have discovered a new genus and species on a remote, mountainous island in Indonesia. (lsu.edu)
  • On the second morning of their field season in 2013, Esselstyn and Museum Victoria Senior Curator of Mammals Kevin Rowe set out in opposite directions from their field camp to check their traps. (lsu.edu)
  • Don E. Wilson is the curator of mammals and a senior scientist at the Smithsonian Institution. (google.co.uk)
  • The discovery of the olinguito shows us that the world is not yet completely explored, its most basic secrets not yet revealed," said Kristofer Helgen, curator of mammals at the Smithsonian's National Museum of Natural History and leader of the team reporting the new discovery. (goodnewsnetwork.org)
  • It's been kind of hiding in plain sight for a long time" despite its extraordinary beauty, said Kristofer Helgen, the Smithsonian's curator of mammals. (thehour.com)
  • New terrestrial mammals, such as those listed above, have come from SE Asia, tropical Africa and New Guinea, but one of the most notable hotspots has been Amazonia. (scienceblogs.com)
  • The hair microstructures of Korean terrestrial mammals from 23 species (22 wild and one domestic) were analyzed using light and scanning electron microscopy (SEM) to construct a hair identification key. (go.jp)
  • Most terrestrial mammals can jump or leap, but some use this form of locomotion far more regularly than others. (earthlife.net)
  • For most terrestrial mammals, swimming involves walking in the water. (earthlife.net)
  • Peru has a long list of threatened mammal species, though the country is taking proactive steps to protect its habitats for future conservation, and working to facilitate its endangered mammals' efforts to bounce back. (worldatlas.com)
  • Overdevelopment , denuded forests, logging, and bad agricultural practices all have contributed to Colombian mammals losing their native habitats. (worldatlas.com)
  • Loss of native habitats may negatively impact important small mammal prey species. (usda.gov)
  • The scientists also considered habitats of special importance to marine mammals, such as breeding grounds and migration routes. (enn.com)
  • The mammals of wood and openland habitats adjacent to the Ohio River were sampled during May, June, July, and October 1984 using mist nets and live, pit, and snap traps. (osu.edu)
  • This article will touch on a few of these mammals and discuss their habitats and ranges, current conservation status, and the major threats that they face. (worldatlas.com)
  • The habitat of this species is forest habitats, with it usually feeding in orchards. (worldatlas.com)
  • Although the main aim of the BBS is to record birds and habitats, it would be useful if you could also record sightings or signs of mammals on your BBS square, as these are used to produce mammal population trends. (bto.org)
  • Interestingly, this species has lost the two things that we think made rodents successful," Esselstyn said. (lsu.edu)
  • Research here had led to the description of multiple new opossums, shrews, bats, rodents and primates, with the recognition of multiple new species of the latter group perhaps receiving most attention. (scienceblogs.com)
  • Almost all the species have crepuscular and nocturnal habits, the most common ones are represented by rodents and insectivores, which constitute the fundamental trophic resource for predators. (parconazionaledelvesuvio.it)
  • Rodents and some other small mammals were trapped and examined for ectoparasitic chigger mites in 29 investigation sites in Yunnan during 2001-2013. (springer.com)
  • Many of the 1750 species of rodents in the world live mostly or entirely on seeds. (earthlife.net)
  • This species is the largest Caribbean representative of a small, ancient family of cave-dwelling bats that evolved in the West Indies. (edgeofexistence.org)
  • In July 1993, visual estimates indicated that a few thousand Cuban Greater Funnel-Eared Bats inhabited Cueva La Barca, and observations made in August 2001 suggest that the species was still abundant in this cave almost a decade later. (edgeofexistence.org)
  • Own observations included - observations on routes in different parts of the reserve, winter route surveys of non-hibernating large mammals, tracking movements of animals on footprints in the snow, catches of small mammals, catches of bats by spider webs, accounts of beavers and beaver settlements (Albov, Khlyap, 2015, 2016). (gbif.org)
  • Commonly known as bats, they are the only mammals that can fly. (parconazionaledelvesuvio.it)
  • Its daytime retreat is normally a cave, which it may share with other species of bats, but it has also been found roosting in mine tunnels and hollow trees. (ttu.edu)
  • Like the other 150 species of leaf-nosed bats found across the Americas, they hunt primarily insects that they capture both in flight or off foliage, and even on the ground. (livescience.com)
  • There is no need to make a special effort to look for small mammals, bats, etc. (bto.org)
  • Fruits are fed on by a wide variety mammals particularly primates (monkeys and apes, etc) and many tropical bats. (earthlife.net)
  • Previously, the earliest record of flight in mammals was found in fossils of bats dating back to 51 million years ago, said lead study author, Jin Meng from the American Museum of Natural History in New York. (livescience.com)
  • While most of the world finds that mammals are the predominant land animals, the Galapagos Islands' land animals are dominated by reptiles. (adventure-life.com)
  • Unlike mammals, reptiles are able to survive long periods without water, which equipped them with the ability to make the epic 620-mile journey to the volcanic islands from the mainland millions of years ago. (adventure-life.com)
  • In fact, the Islands draw such inspiration from these gentle reptiles that the archipelago was even named after one of its most famous species - the giant tortoise. (adventure-life.com)
  • But ironically, there are a very limited number of mammals on the islands - instead the Galapagos' land animals are predominately reptiles. (adventure-life.com)
  • Like most reptiles, the majority of mammals travel across land. (earthlife.net)
  • Mammals, however, move much further and more often than reptiles. (earthlife.net)
  • In contrast, many fish species and reptiles, for example, grow new teeth continually throughout their lives. (eurasiareview.com)
  • All such prohibited mammals, birds, fish (including mollusks and crustacea), amphibians, and reptiles, and the eggs or offspring therefrom, shall be promptly exported or destroyed at the expense of the importer or consignee. (cornell.edu)
  • Few people are aware that hunting the species is illegal, and the rabbits are often killed for food by the local people or used as target practice by hunters looking for game birds. (edgeofexistence.org)
  • This unique habitat is home to a wide variety of species, from colorful flamingos and comical blue-footed boobies, to showy frigate birds and bizarre cormorants. (adventure-life.com)
  • The distinct features of the birds make for easy identification even for the novice birder, while the savvy will be pleased to spot the rare and treasured species found only in the Galapagos Islands. (adventure-life.com)
  • These carnivorous hunters prefer to hunt at night and their diet is primarily other desert mammals, but they will surely eat both birds and eggs. (livescience.com)
  • Despite decades of research, some of the most basic issues concerning the extraordinarily complex brains and behavior of birds and mammals, such as the factors responsible for the diversity of brain size and composition, are still unclear. (frontiersin.org)
  • The theoretical framework on the evolution of brain, cognition, and behavior in birds and mammals should be reconsidered with these biases in mind. (frontiersin.org)
  • In particular, in birds and mammals, in which most research has been conducted, there are no satisfactory answers to the following questions: Which factors control species differences in brain size and composition and what is, if any, the role of body size? (frontiersin.org)
  • Examining the literature on birds and mammals, the present paper exposes definitive reasons for abandoning whole-class analyses in comparative studies and highlights the importance of a detailed taxon-cerebrotype approach in brain evolution studies. (frontiersin.org)
  • Mammals might have taken to the sky before birds, scientists announced today. (livescience.com)
  • Over 30 species of birds have been identifiefd from the Fossil Butte Member (FBM). (nps.gov)
  • and the terms "wildlife" and "wildlife resources" include those resources that comprise wild mammals, wild birds, fish (including mollusks and crustacea), and all other classes of wild creatures whatsoever, and all types of aquatic and land vegetation upon which such wildlife resources are dependent. (cornell.edu)
  • Nothing in this subsection shall restrict the importation of dead natural-history specimens for museums or for scientific collections, or the importation of domesticated canaries, parrots (including all other species of psittacine birds), or such other cage birds as the Secretary of the Interior may designate. (cornell.edu)
  • The International Union for the Conservation of Nature (IUCN) released its latest report on the Red List of Threatened Species on July 19, 2012. (worldatlas.com)
  • Rabbit distribution (in green), taken from 'Britain's Mammals 2018: The Mammal Society's Guide to their Population and Conservation Status. (mammal.org.uk)
  • We are hoping that as this tree hyrax species is recognised, it will lead to significant conservation measures in the area. (thehindu.com)
  • Conservation of this and all other species is only possible if local people will benefit from it economically. (thehindu.com)
  • However, some of the species that call our waters home are endangered or threatened.To aid conservation efforts, the Vancouver Aquarium, Fisheries and Oceans Canada and the Government of Canada Habitat Stewardship Program for Species at Risk have formed the BC Cetacean Sightings Network.Through reporting your sightings, you can help to prevent these mammals from facing further risk. (comoxvalleyrecord.com)
  • The most surprising and interesting result was that all of the species can be represented in only 20 critical conservation locations that cover at least 10 percent of the species' geographic range. (enn.com)
  • Their next step was to apply their model to species by geographic region, using species range maps from the International Union for Conservation of Nature. (uga.edu)
  • We advise the following important measures for conservation of this mammal community: 1) reduce logging and cattle grazing in gallery forest, and 2) increase grassland buffer zones between plantation and forest. (scielo.br)
  • This week (2 June 2014), People's Trust for Endangered Species (PTES) publishes the latest in its series of research and conservation reports, The State of Britain's Mammals . (ptes.org)
  • The NOAA Fisheries Office of Protected Resources profile series highlights staff members from various backgrounds who contribute to the field of marine ecology and conservation, and specifically individuals who work on Endangered Species Act and Marine Mammal Protection Act programs that support our mission. (noaa.gov)
  • He explains how his interest in endangered species conservation began at a local pond and led to the ocean. (noaa.gov)
  • There has been considerable discussion in recent years about the conservation implications of the species‐area relationship. (deepdyve.com)
  • These studies assume that the short time of divergence between mammals (less that 100 million years) and the preservation of their protein function assures enough nucleotide-sequence conservation among species [ 9 ]. (biomedcentral.com)
  • According to the International Union for Conservation of Nature (IUCN) Red List, the Amami Rabbit has been listed as an endangered species since 1986 and its current population is decreasing. (worldatlas.com)
  • In 1999 The Center for Conservation of Amami Wildlife was set up, with the Amami Rabbit also being put under the Japanese Endangered Species Act in 2004. (worldatlas.com)
  • In the face of unprecedented global biodiversity loss, conservation planning must balance between refining and deepening knowledge versus acting on current information to preserve species and communities. (royalsocietypublishing.org)
  • Phylogenetic diversity (PD), a biodiversity measure that takes into account the evolutionary relationships between species, is arguably a more meaningful measure of biodiversity than species diversity, but cannot yet be applied to conservation planning for the majority of taxa for which phylogenetic trees have not yet been developed. (royalsocietypublishing.org)
  • Here, we investigate how the quality of data on the taxonomy and/or phylogeny of species affects the results of spatial conservation planning in terms of the representation of overall mammalian PD. (royalsocietypublishing.org)
  • This was one of the findings from the first-ever global conference on the conservation of pangolins held by the International Union for Conservation of Nature - Species Survival Commission (IUCN SSC) Pangolin Specialist Group and co-organized and hosted by Wildlife Reserves Singapore. (iucn.org)
  • This list of mammals includes both park natives and species, such as house mice, that have arrived with increased human occupation. (nps.gov)
  • Species diversity was greatest for all three trap methods in recently disturbed areas. (osu.edu)
  • The species diversity of chigger mites (274 species) in the present study were not only much higher than that from other provinces of China but also largely exceeded that recorded from other regions and countries in the world. (springer.com)
  • Of the five zoogeographical subregions, both the species diversity and Shannon-Weiner's diversity of mites were the highest in subregion II (southern subregion of Hengduan Mountains) with middle altitudes and middle latitude. (springer.com)
  • The geographical location, complex topography, and landscape with diverse small mammal hosts in Yunnan Province have contributed to the extremely high species diversity of mites in the province. (springer.com)
  • Two principal hypotheses, the urea per se and the habitat diversity hypotheses, have been proposed to explain the species‐area relationship. (deepdyve.com)
  • Although the group has been the subject of decades of phylogenetic research, the marsupial tree of life remains controversial, with most studies focusing on only a fraction of the species diversity within the infraclass. (peerj.com)
  • Phylogenetic diversity (PD) [ 14 , 15 ] is a biodiversity measure that takes into account the evolutionary relationships between species, and can be calculated for mammals because a phylogenetic super-tree is already available [ 16 , 17 ]. (royalsocietypublishing.org)
  • My objectives were to determine changes in small mammal diversity over time and identify habitat types and vegetative characteristics inhabited by small mammals. (secheresse.info)
  • Information on small mammal specimens collected for two surveys in 1891 and 1933 was used to assess species diversity changes over time. (secheresse.info)
  • Marsupials or metatherians are a group of mammals that are distinct in giving birth to young at early stages of development and in having a prolonged investment in lactation. (peerj.com)
  • Thus, one group of mammals known as ruminants has evolved several stomachs which are called the Rumen, Reticulum, Omassum and Abomassum. (earthlife.net)
  • The fact that a single premolar is all that is left of Brasilestes and that it is incomplete prevented the researchers from distinguishing with absolute confidence the group of mammals to which the species belonged. (eurasiareview.com)
  • Their diet is composed mostly of fish, amphibians (frogs), crustaceans (crayfish and crabs), muskrats, and other small mammals. (epa.gov)
  • To begin with, mammal species are in the Class Mammalia, within the Subphylum Vertebrata, under the Phylum Chordata, in the Kingdom Animalia. (thoughtco.com)
  • The loss of the giant carnivores and herbivores changed how small mammals such as deer, coyotes and raccoons interacted," Tóth said. (eurekalert.org)
  • Most desert mammals are herbivores and derive water directly from the plants they eat. (nps.gov)
  • If you were to weigh all the mammals in the world, the sheer bulk mass of them would be herbivores. (earthlife.net)
  • infection in ectoparasites of wild mammals. (vdu.lt)
  • In total 118 ectoparasites were collected (110 ticks and 8 fleas) from wild mammals (European hare, raccoon dog, European polecat, European badger and red fox). (vdu.lt)
  • Originally described from fossils that have been discovered across mainland Cuba and the neighbouring Isle of Pines, a living population of the species was only discovered in 1992 in a single "hot cave", the remote Cueva La Barca, located on the Guanahacabibes Peninsula at the western tip of Cuba within one of the largest remaining tracts of Cuban lowland forest. (edgeofexistence.org)
  • The new species' fossils comprise a completely preserved skull and mandible with their associated atlas, as well as an axis and two thoracic vertebrae from another individual. (scitechdaily.com)
  • The largest mammals that every lived became an endangered species when, from 1900 to the mid-1960s, about 360,000 blue whales were slaughtered. (guardianlv.com)
  • Although they are the top of the food chain, the largest mammals that ever lived, blue whales have become an endangered species. (guardianlv.com)
  • Desert Bighorn Sheep ( Ovis canadensis nelsoni ) aresome of the largest mammals found in the North American deserts. (livescience.com)
  • The following is a list of largest mammals by family. (wikipedia.org)
  • A study suggests a putative gene-expression hallmark common to monogamous male vertebrates of some species, namely cichlid fishes, dendrobatid frogs, passeroid songbirds, common voles, and deer mice, and identifies 24 candidate genes potentially associated with monogamy. (pnas.org)
  • Have you ever thought about what makes mammal species different from other vertebrates? (thoughtco.com)
  • Being a mammal myself, I have always found this particular class of vertebrates very interesting. (thoughtco.com)
  • As you will see, mammals have certain characteristics that differentiate them from other vertebrates. (thoughtco.com)
  • Mammals can comprehend and learn things, which can be attributed to a larger brain size as compared to vertebrates of similar size. (thoughtco.com)
  • All of these characteristics (hair, maintaining a constant body temperature, production of milk, internal fertilization, young born fully developed, highly developed circulatory and respiratory systems, larger brain size, and differences in the size and function of teeth) make mammal species unique among the vertebrates. (thoughtco.com)
  • Cellulose, however, is largely indigestible to vertebrates, particularly mammals as they do not have the correct enzymes to break it down. (earthlife.net)
  • With extremely large ears, long hind legs that may be used for hopping, long white incisors and very long urogenital hairs, the Hog-nosed rat is so genetically different from any other species that the scientists described it as a new genus. (lsu.edu)
  • The scientists found that the new species eats earthworms and beetle larvae. (lsu.edu)
  • After sequencing the DNA from the specimens, the scientists had the molecular evidence to confirm the species' unique distinctions. (lsu.edu)
  • NEWPORT, Ore. - A team of scientists from the United States and Russia has documented the longest migration of a mammal ever recorded - a round-trip trek of nearly 14,000 miles by a whale identified as a critically endangered species that raises questions about its status. (eurekalert.org)
  • Not all scientists believe that western gray whales are a separate, distinct species. (eurekalert.org)
  • Over the course of six nights, the scientists set up 150 mammal traps a night, and came up empty. (inhabitat.com)
  • Described as a cross between a house cat and a teddy bear, scientists announced the identification of a new mammal species, the olinguito. (goodnewsnetwork.org)
  • In the raccoon family, Bassaricyon neblina is the first mammalian carnivore species to be added in the Americas in 35 years, scientists at the Smithsonian Institution in Washington said. (goodnewsnetwork.org)
  • Because it is not logistically possible to count all the world's species based on direct observation, scientists use statistical models to calculate their numbers. (uga.edu)
  • The model is based on the relationship between the number of species descriptions published and the number and efficiency of taxonomists-the scientists who describe and classify species-working at a given time. (uga.edu)
  • This profile series highlights NOAA Fisheries scientists whose work helps to further our mission to conserve and protect endangered species and marine mammals. (noaa.gov)
  • Deforestation-related habitat loss due to human activities, shown here on Borneo, is a major threat to mammals across Indonesia. (worldatlas.com)
  • If you're an open-habitat species that used to occupy the mammoth steppe, and now the mammoth steppe has gone away, you might inhabit, say, open grassland areas that are surrounded by forests," Lyons said. (eurekalert.org)
  • And if those patches of open habitat are spread farther apart, you might expand your geographic range and potentially your climate range, but you would co-occur with fewer species. (eurekalert.org)
  • Little information, however, is available on the impact of habitat variability on density of small mammal prey species at broad spatial scales. (usda.gov)
  • Sciurid and leporid species exhibited mixed responses to vegetation, such that changes to native habitat will likely affect prey species differently. (usda.gov)
  • ScienceDaily â€" Preserving just 4 percent of the ocean could protect crucial habitat for the vast majority of marine mammal species, from sea otters to blue whales, according to researchers at Stanford University and the National Autonomous University of Mexico. (enn.com)
  • It is listed as a critically endangered species due to habitat loss. (allrefer.com)
  • Habitat losses and the extremely large-scale incidences of poaching are serious threats to the species' survival. (allrefer.com)
  • Changes in habitat and landscape characteristics due to land-use change can have a significant effect on species presence, abundance, and distribution. (scielo.br)
  • Multi-scale approaches have been used to determine the proper spatial scales at which species and communities are responding to habitat transformation. (scielo.br)
  • The composition of the mammal community was related with local habitat variables, and landscape variables measured at seven spatial scales. (scielo.br)
  • Environmental change such as habitat loss and toxins in the ocean also threaten the massive marine mammals. (guardianlv.com)
  • The habitat of this species is mainly the dense primary forest. (worldatlas.com)
  • However, due to massive deforestation, the species is now usually found in coastal areas covered by cycads, mountainous habitat covered by oak trees, broad-leafed evergreen forests and cleared areas where perennial grasses cover the land. (worldatlas.com)
  • The major threats that this species faces are from loss of habitat caused by logging and construction, as well as from the introduction of invasive predatory species like the mongoose and feral cats and dogs. (worldatlas.com)
  • The habitat of this species is mostly in low mountain areas that have sub-tropical evergreen forest. (worldatlas.com)
  • The major threats that this species faces are from loss of habitat, mortality from traffic accidents, tourist activity in its habitat and invasive dogs and feral cats. (worldatlas.com)
  • For the Bonin Flying Fox the Minami-Iwo and Kita-Iwo are protected islands and a National Wildlife Protection Area that includes the species' habitat was established in 1980. (worldatlas.com)
  • Small mammal trap lines were set in 18 qualitatively different habitat types during 6 sampling seasons (2 each in spring, summer, and fall) in 2008-2009. (secheresse.info)
  • Habitat characteristics were quantified for each habitat type then joined to individual small mammal traps in ArcMap 9.3. (secheresse.info)
  • A CCA (canonical correspondence analysis) was conducted to assess small mammal habitat associations. (secheresse.info)
  • Small mammals were primarily associated with shrub dominated and graminoid dominated habitat associations. (secheresse.info)
  • The volcano rabbit is monotypic (the only species in its genus). (edgeofexistence.org)
  • The researchers originally started out to create the first comprehensive study of olingos, several species of tree-living carnivores in the genus Bassaricyon. (goodnewsnetwork.org)
  • It is the only extant species of the genus Dicerorhinus. (allrefer.com)
  • For example, the Platypus Ornithorhynchus anadinus is the sole species in the family Ornithorhynchidae, and one of only five species in the order Monotremata, whereas the Cactus Mouse Peromyscus eremicus is one of 56 species in its genus, one of 692 species in the family Cricetidae and one of 2280 species in the order Rodentia [ 13 ]. (royalsocietypublishing.org)
  • They then subtracted the number of known mammal species to come up with the estimate of 303 yet to be discovered. (uga.edu)
  • Brasilestes stardusti is the name given to the oldest known mammal found in Brazil. (eurasiareview.com)
  • There might be a small hope for the species: the researchers think there could be some yet undiscovered on nearby Papua New Guinea . (inhabitat.com)
  • Species restricted to small, low lying islands, or those with very tight environmental requirements are likely to be the first to go. (inhabitat.com)
  • Cytogenetic and molecular genetic studies of hedgehogs, roe deer, and some species of small mammals have been carried out (Albov et al. (gbif.org)
  • Tree hyraxes are small nocturnal mammals that feed on leaves and fruits and are native to Africa. (thehindu.com)
  • We examined the relationship between small mammal density and remotely-sensed environmental covariates in shrub-steppe and grassland ecosystems in Wyoming, USA. (usda.gov)
  • Contributions on owl pellet analysis and identification of small mammals on the basis of key bone pieces collected from the pellets have been made by various workers. (nhbs.com)
  • The present study reports the identification of 19 small mammal species under three different orders (Insectivora, Chiroptera and Rodentia), on the basis of composition of key characters present in the skull and mandible pieces of small mammals found in owl / owlet pellet material collected from Maharashtra State. (nhbs.com)
  • Literature reveals that no such type of key (with photographs showing key characters) is available for identification of small mammals species found in owl / owlet pellets from Maharashtra State as well as other parts of India. (nhbs.com)
  • Therefore, the present study will help in identifying the small mammal species from owl pellet material obtained from other parts of India too. (nhbs.com)
  • The most widespread species are the garden dormouse (Eliomys quercinus), which is characterised by a black mark on the snout and a long tail and can be found in the mixed woods of Mount Somma, the Dormouse (Myoxus glis), in the woods and among the cultivated fields, and the hazel dormouse (Muscardinus avellanarius), reddish in colour and small in size. (parconazionaledelvesuvio.it)
  • and eight species of small mammals were trapped. (osu.edu)
  • Hence, on islands with a large-bodied mammal fauna, predators are selectively culling species from the lower end of the size distribution, and on islands with a small-bodied fauna they are culling species from the upper end. (phys.org)
  • From 13,760 individuals and 76 species of small mammal hosts, we collected 274 species of mites, which were identified as comprising 26 genera in two families. (springer.com)
  • The large sampling size of small mammal hosts in a wide geographical scope within a long time span also made it possible to have collected so many species of chigger mites. (springer.com)
  • Much of this discussion has been concerned with whether a single large reserve contains more species than several small reserves (SLOSS). (deepdyve.com)
  • Mammals can endure a large range of air temperatures, but are unable to tolerate even a small change in body temperature without encountering problems. (nps.gov)
  • Because scarcity of food in the desert limits the number of large mammals that can be supported, most desert mammals are small. (nps.gov)
  • Most small mammals make the most of the positive side of being small, spending the day in burrows and emerging at night when the temperature drops to a more comfortable level. (nps.gov)
  • The species is also found in lower elevations with a high-density mosaic of wetland, streams and small hills. (worldatlas.com)
  • Ice age distributions of European small mammals: insights from sp. (ingentaconnect.com)
  • Mammal Species of the World: A Taxonomic and Geographic Reference is a standard reference work in mammalogy giving descriptions and bibliographic data for the known species of mammals. (wikipedia.org)
  • 2005). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed. (wikipedia.org)
  • Wilson and Reeder's Mammal Species of the World is the classic reference book on the taxonomic classification and distribution of the more than 5400 species of mammals that exist today. (google.co.uk)
  • Taxonomic classification and distribution of the more than 5400 species of mammals. (google.it)
  • Little attention has been given to the detailed aspects of taxonomic identification of prey species. (nhbs.com)
  • We focus on mammals because they are among the best-known taxa, and by degrading the available taxonomic and phylogenetic information in various ways we can simulate the more imperfect state of knowledge of less-known groups. (royalsocietypublishing.org)
  • When feeding on a large mammal, it minimizes spoilage and loss to scavengers by dragging the carcass to a secluded cache site and covering it with leaves and debris. (britannica.com)
  • Arguably the most exciting concept in the entire field of zoology is the thought that new large terrestrial tetrapod species await discovery. (scienceblogs.com)
  • So the 2004 news that what appears to be another large extant peccary species was really really interesting, to say the least. (scienceblogs.com)
  • In particular, the ears of N. primus are very large relative to those of other species (20.2-21.2 mm length). (edgeofexistence.org)
  • This species occurs in a ''hot cave": a cave with poor ventilation and nearly constant high temperatures (26-40°C) and humidity (>90%), which typically contain large bat communities. (edgeofexistence.org)
  • The aftermath saw the disappearance of many famously large mammal species: mammoths, mastodons, saber-toothed cats, dire wolves and ground sloths, among others. (eurekalert.org)
  • Thus, the disadvantages of large size are greater than generally recognized, and future loss of large mammal biodiversity could be far more rapid than expected. (sciencemag.org)
  • Researchers Thursday announced a rare discovery of a new species of a mammal that belongs to the grouping of large creatures that include dogs, cats and bears: the olinguito. (thehour.com)
  • Most people believe there are no new species to discover, particularly of relatively large charismatic animals," said Case Western Reserve University anatomy professor Darin Croft. (thehour.com)
  • A new living species of large mammal: hello, Tapirus kabomani! (scientificamerican.com)
  • It is the smallest rhinoceros, although it is still a large mammal. (allrefer.com)
  • The large number of probes per target used by Affymetrix microarrays represents an advantage for cross species analyses with respect to other microarray platforms, such as those based on cDNA probes. (biomedcentral.com)
  • Coyotes are known to gather and hunt in packs when they are stalking large mammals such as deer. (livescience.com)
  • The largest members of the camel family are either the bactrian camel ( Camelus bactrianus ), which is still wild in the steppe of central Asia, or the similarly sized dromedary ( Camelus dromedarius ), which no longer exists as a purely wild species but is widespread in the Middle East as a domestic animal, with a large introduced feral population in Australia. (wikipedia.org)
  • Marsupials are an old lineage thought to have diverged from early therian mammals some 160 million years ago in the Jurassic, and have a remarkable evolutionary and biogeographical history, with extant species restricted to the Americas, mostly South America, and to Australasia. (peerj.com)
  • Here we present the first Methaterian species-level phylogeny to include 80% of the extant marsupial species and five nuclear and five mitochondrial markers obtained from Genbank and a recently published retroposon matrix. (peerj.com)
  • and then diversified with over 200 extant species in the region. (peerj.com)
  • Another distinct characteristic of the Hog-nosed rat is that it lacks a jaw muscle attachment point found in most mammals called the coronoid process on the dentary bone. (lsu.edu)
  • For each permit for an endangered species, we found that (1) The application was filed in good faith, (2) The granted permit would not operate to the disadvantage of the endangered species, and (3) The granted permit would be consistent with the purposes and policy set forth in section 2 of the ESA. (federalregister.gov)
  • DNA of this species was found only in hybrid individuals Erinaceus europaeus x Erinaceus roumanicus (Albov et al. (gbif.org)
  • Surviving mammal species often responded by distancing themselves from their neighbors, the study found, potentially reducing how often they interacted as predators and prey, territorial competitors or scavengers. (eurekalert.org)
  • The proportion of aggregating pairs generally declined following the extinctions, and the strength of associations often dropped even among species that continued to aggregate, the researchers found. (eurekalert.org)
  • We found that it is possible to distinguish between species and order based on general appearance, medulla structures and cuticular scales. (go.jp)
  • While new species are found regularly, usually they are tiny and not mammals, the warm-blooded advanced class of animals that have hair, live births and mammary glands in females. (thehour.com)
  • This species is found in marshes, near streams, and in forests. (epa.gov)
  • Up until now, it was believed that this species was only found from Argentina to western Panama! (kidssavingtherainforest.org)
  • Using simulated data sets, the researchers ran thousands of tests of both models and found that theirs was more likely to arrive at the correct number of species. (uga.edu)
  • There may be more cryptic species in the tundra/taiga of the Palearctic than previously assumed or found," she said. (uga.edu)
  • Rickettsia DNA were found in 23.1% (3/13) Dermocentor reticulatus ticks and 13.4% (13/97) Ixodes ricinus ticks, as well in 12.5% (1/8) fleas of Chaetopsylla globiceps species. (vdu.lt)
  • We found 14 mammal species in forest, 11 species in plantation, and 7 mammal species in grassland. (scielo.br)
  • The giant rhino, Paraceratherium , is considered the largest land mammal that ever lived and was mainly found in Asia, especially China, Mongolia, Kazakhstan, and Pakistan. (scitechdaily.com)
  • The researchers found that all six species of Paraceratherium are sisters to Aralotherium and form a monophyletic clade in which P. grangeri is the most primitive, succeeded by P. huangheense and P. asiaticum . (scitechdaily.com)
  • There are more than 4,000 species of mammals living in the many ecosystems and environments found across the Earth. (livescience.com)
  • The species is only found on the southern Japanese island of Iriomote-jima that is part of the Yaeyama Islands in the Okinawa Prefecture. (worldatlas.com)
  • This fossil, found in Inner Mongolia, China, puts the first record of gliding flight for mammals at least 70 million years earlier than had been known, the researchers write in the Dec. 14 issue of the journal Nature . (livescience.com)
  • Two hero shrew species ( Scutisorex ) can be found in the palm forests of the Democratic Republic of the Congo. (sciencenews.org)
  • The name of the new species pays tribute to British rock star David Bowie, who died in January 2016, a month after the fossil was found. (eurasiareview.com)
  • Our results support the idea of more northerly refuge areas in Europe, indicating that boreal species would have found suitable living conditions over much of southern central and eastern Europe and the Russian Plain. (ingentaconnect.com)
  • Temperate species would have primarily found suitable conditions in the traditional southern refuge areas, but interestingly also in much of the southern Russian Plain. (ingentaconnect.com)
  • In Texas the species is known primarily from the oak-hickory, pine-oak, and longleaf pine forest regions, with recent records extending the range westward to Hunt, Dallas, Coryell, and Williamson counties. (ttu.edu)
  • Primarily aquatic mammals such as seals, etc., have much more ungainly gaits. (earthlife.net)
  • The cetaceans (whales and dolphins), are the largest and most diverse order of marine mammals and consist of two suborders, the Odontoceti (toothed whales) and the Mysteceti (baleen or rorqual whales), which are separated primarily on the basis of their feeding strategies and the morphological differences that characterize these. (iziko.org.za)
  • Blue whales live longer than any other mammal Earth's besides humans. (guardianlv.com)
  • Although they occasionally occupy burrows dug by other species, they spend most of their time at the surface, where the dense zacaton keeps them hidden from predators. (edgeofexistence.org)
  • Other fascinating underwater species you might come across include all manner of rays, from manta to golden to stingrays, a veritable rainbow of tropical fish, sea turtles, corals, seahorses, and their hungry avian predators that plunge into the seas to snag their next meal from high above. (adventure-life.com)
  • Mammals raised in areas free of non-native predators may be poorly adapted for use in translocations into areas where they have a greater chance of encountering such predators. (conservationevidence.com)
  • Their study suggests, they note, that future efforts to protect endangered species take both size and predators into consideration. (phys.org)
  • Unbeknownst to each other, they both caught the same type of animal in their respective traps and immediately knew they were looking at a new species. (lsu.edu)
  • We issue these permits under the Endangered Species Act (ESA) and Marine Mammal Protection Act (MMPA). (federalregister.gov)
  • 2016. US Atlantic and Gulf of Mexico Marine Mammal Stock Assessments -- 2015. (noaa.gov)
  • The toxin accumulates in shellfish, mussels, anchovies, sardines and herring, and can sicken marine mammals including sea lions, sea otters and fur seals who feed on these living organisms. (lmtonline.com)
  • The differences in reproducibility between same-species and cross-species analyses observed in previous studies were probably caused by the analytical methods used to calculate the gene expression measures. (biomedcentral.com)
  • Determining species and group differences in brain composition requires accounting for the presence of taxon-cerebrotypes and the use of precise statistical methods. (frontiersin.org)
  • External indicators of species differences in cognition and behavior are limited by the complexity of these differences. (frontiersin.org)
  • Indeed, behavioral differences between species and individuals are caused by cognitive and affective components. (frontiersin.org)
  • Although intra-species variability forms the basis of species evolution, some of the mechanisms underlying individual differences in brain and behavior appear to differ from those between species. (frontiersin.org)
  • What is the nature of species differences in cognition and behavior? (frontiersin.org)
  • For example, there is a widespread belief that "although absolute brain size may partially explain species differences in intelligence, the fact that elephant and whale brains are several times larger than human brains gives us pause and suggests the need to control for body size" ( Rilling, 2006 ). (frontiersin.org)
  • A new order of mammals has been named based on a recently discovered fossil of a squirrel-sized Mesozoic-era animal [image] that lived at least 130 million years ago and was capable of gliding flight . (livescience.com)
  • Discoveries of new fossil species from the ancient lake sediments continue to expand understanding of the paleoecosystem. (nps.gov)
  • Click on links below to learn more about fossil species from the Fossil Butte Member (FBM). (nps.gov)
  • 27 fish species have been identified from the Fossil Butte Member (FBM). (nps.gov)
  • 10 mammal species have been identified from the Fossil Butte Member (FBM). (nps.gov)
  • 2 amphibian species have been identified from the Fossil Butte Member (FBM). (nps.gov)
  • The fact that endangered western gray whales have such a long range and interact with eastern gray whales was a surprise and leaves a lot of questions up in the air," said Bruce Mate, director of the Marine Mammal Institute at Oregon State University and lead author on the study. (eurekalert.org)
  • Mammal species are mammals excluding whales and porpoises. (tradingeconomics.com)
  • In fact, we are home to 23 species of cetaceans (whales, dolphins and porpoises) and four species of sea turtles.Seeing killer whales and other marine wildlife in their natural environment is a thrilling experience. (comoxvalleyrecord.com)
  • The blue whale is a marine mammal belonging to the baleen whales. (allrefer.com)
  • In a sample of species ranging from bacteria and viruses to whales and sequoia, there is a fairly strong relationship between species size and generation time or population density ( Harvey and Pagel, 1991 , 3-4). (frontiersin.org)
  • It is important to note that whales and dolphins are a protected species under South African law and may not be harmed or disturbed in any way. (iziko.org.za)
  • Gabon - Mammal species, threatened - actual values, historical data, forecasts and projections were sourced from the World Bank on August of 2021. (tradingeconomics.com)
  • https://www.thoughtco.com/mammal-species-373504 (accessed August 1, 2021). (thoughtco.com)
  • Unexpectedly, the team discovered the existence of the olinguito among museum records and specimens, a previously undescribed species. (goodnewsnetwork.org)
  • Published in Journal of Mammalogy , and authored by Mario Cozzuol and a team of colleagues, it describes the new Tapirus species T. kabomani , first realised to be novel following the recognition of specimens obtained by Brazilian indigenous hunters in 2009, and since recognised in museum collections (Cozzuol et al . (scientificamerican.com)
  • For references , please go to https://www.eea.europa.eu/data-and-maps/figures/endemism-of-eu-native-species or scan the QR code. (europa.eu)
  • Retrieved from https://www.thoughtco.com/mammal-species-373504 Bailey, Regina. (thoughtco.com)
  • If connectedness among species makes ecosystems more stable, what this suggests is that we've already lost a lot of those links. (eurekalert.org)
  • It's important to protect marine mammals if you want to keep the ocean's ecosystems functional," said study co-author Paul Ehrlich, professor of biology and senior fellow at the Woods Institute for the Environment at Stanford. (enn.com)
  • Some of these results might be set to change, especially the position of the Malayan tapir: there are indications from elsewhere that this species is highly distinct relative to Tapirus tapirs, normally being recovered as their sister-taxon (Ashley et al . (scientificamerican.com)
  • The new mammal, Jeholbaatar kielanae, has a middle ear that is distinct from those of its relatives. (unexplained-mysteries.com)
  • The Himalayan wolf has been suggested by several Indian biologists for recognition as a critically endangered canid species, distinct from Canis lupus. (allrefer.com)
  • The first corresponded to the divergence of monotreme mammals (platypus and echidna) from the rest, and the second to the divergence of marsupials from placental mammals (including humans). (cosmosmagazine.com)
  • In a paper published in BioEssays , I propose that drastic sex chromosome changes could have played a direct role in separating our lineage (placental mammals), first from the egg-laying monotremes, then from marsupials. (cosmosmagazine.com)
  • In humans and other placental mammals, such as mice, dogs and elephants, sex is determined by a pair of chromosomes. (cosmosmagazine.com)
  • Although there is not enough evidence to support the inclusion of Brasilestes in either infraclass, the researchers believe (but cannot categorically conclude) it was a placental mammal. (eurasiareview.com)
  • There's a difference in the sex chromosomes between various mammals, such as the platypus compared to humans. (phys.org)
  • Mammals, including humans have the ability to maintain a constant body temperature regardless of external conditions. (nps.gov)
  • However, due to lack of sequence information of other species, DNA microarrays are currently restricted to humans and a few model species. (biomedcentral.com)
  • Many such mammals have learned to not only survive but thrive when living close to humans in desert communities. (livescience.com)
  • So many of the world's species are not yet known to science. (goodnewsnetwork.org)
  • Isolated from the mainland for thousands of years, some of the most unusual species in the world have evolved here, including giant tortoises, marine iguanas, blue-footed boobies, and even the world's only equatorial penguin. (adventure-life.com)
  • Mammal species, threatened in Gabon was reported at 18 in 2018, according to the World Bank collection of development indicators, compiled from officially recognized sources. (tradingeconomics.com)
  • Throughout its range its primary prey is hoofed mammals ( ungulate s, especially deer) larger than itself. (britannica.com)
  • The most common species are the crab-eating fox Cerdocyon thous Linnaeus, 1766, the nine-banded armadillo Dasypus novemcinctus Linnaeus, 1758 and the gray brocket deer Mazama gouazoubira G. Fischer, 1814 which are generalist species. (scielo.br)
  • The larger mammals, such as mule deer and mountain sheep stay close enough to springs to be able to drink daily. (nps.gov)
  • The Society for Marine Mammalogy, an international scientific society, maintains a list of valid species and subspecies, most recently updated in October 2015. (wikipedia.org)
  • Please note: In the Species Information Sheet, Phocoena phocoena and Phoca vitulina vitulina have been assessed on a subspecies level. (helcom.fi)
  • Classified as Critically Endangered (CE B1ab(iii,v)c(iv)) on the 2010 IUCN Red List of Threatened Species. (edgeofexistence.org)
  • Classified as Endangered (EN B2ab(i,ii,iii,v)) on the 2010 IUCN Red List of Threatened Species. (edgeofexistence.org)
  • Thus, few desert mammals use perspiration or panting as their main method of keeping cool. (nps.gov)
  • A few desert mammals, such as the round-tailed ground squirrel, a diurnal rodent, enter a state of aestivation when the days become too hot and the vegetation too dry. (nps.gov)
  • This urban bobcat ( Lynx rufus ) is just one of many desert mammals that truly make these North American lands a living desert. (livescience.com)
  • The puma, a member of the family Felidae, has the widest distribution of any New World mammal , with a range extending from southeastern Alaska to southern Argentina and Chile. (britannica.com)
  • Checklist Committee 2015 Site hosted by Bucknell University search hosted by Bucknell University taxon browser on archived version of the Smithsonian website for MSW3 Mammal Species of the World at Google Books ‹ The template below (Taxonbar databases) is being considered for deletion. (wikipedia.org)
  • This makes the country seventh in the world ranking of countries with the most threatened species. (worldatlas.com)
  • The data in this checklist of mammal species of the world are being presented for non-commercial, personal, and collections management use only. (gbif.org)
  • This indispensable reference work belongs in public and academic libraries throughout the world and on the shelf of every biologist who works with mammals. (google.co.uk)
  • Ernest Walker, author of several editions of The Mammals of the World , reported that Diphylla ecaudata attacks the legs and cloacal region of chickens. (ttu.edu)
  • Every ocean in the world is home to this endangered species. (guardianlv.com)
  • It is also an evolutionary flexibility which allows species to adapt better to an ever changing world. (earthlife.net)
  • Ecologist John White from Deakin University told The Guardian, "I am of absolutely no doubt we will lose species due to the increasing pressure being exerted by climate change. (inhabitat.com)
  • We sampled four sciurid and leporid species groups using line transect methods, and used hierarchical distance-sampling to model density in response to variation in vegetation, climate, topographic, and anthropogenic variables, while accounting for variation in detection probability. (usda.gov)
  • How will mammals respond to climate change? (cosmosmagazine.com)
  • As the ramifications of climate change become increasingly more apparent, our understanding of its complex impacts on mammals still has major gaps, according to a comprehensive review published in the Journal of Animal Ecology . (cosmosmagazine.com)
  • Only 106 studies modelled both survival and reproduction at the same time as a function of climate variables such as temperature and rainfall, covering just 87 out of 5728 species reviewed. (cosmosmagazine.com)
  • The models with the best predictors of the species distributions across Siberia were projected onto LGM climate simulations to assess the distribution of climatically suitable areas. (ingentaconnect.com)
  • Their LGM projections showed that areas with a suitable LGM climate for the three temperate species ( Apodemus flavicollis , Apodemus sylvaticus and Microtus arvalis ) were largely restricted to the traditionally recognized southern refuge areas, i.e. mainly in the Mediterranean region, but also southernmost France and southern parts of the Russian Plain. (ingentaconnect.com)
  • For the two arctic species ( Lemmus lemmus and Microtus oeconomus ), suitable climate was predicted from the Atlantic coast eastward across central Europe and into Russia. (ingentaconnect.com)
  • Caitlin Birdsall, research assistant for the BC Cetacean Sightings Network, will give a presentation at the Fanny Bay Hall at 2 p.m. this Sunday about marine mammal species common to this part of Vancouver Island, threats to these animals, and information on how you can participate in the sightings network.This event is sponsored by the Fanny Bay Community Association. (comoxvalleyrecord.com)
  • Iziko S.A. Museum's Marine Mammal Collection includes a comprehensive collection of cetacean and Cape fur seal skeletal material. (iziko.org.za)
  • Within the Paraceratherium clade, the researchers' phylogenetic analysis produced a series of progressively more-derived species - from P. grangeri , through P. huangheense , P. asiaticum , and P. bugtiense - finally terminating in P. lepidum and P. linxiaense . (scitechdaily.com)
  • However, decisions based on incomplete data are remarkably robust across different levels of degrading quality concerning the description of new species and the availability of phylogenetic information. (royalsocietypublishing.org)
  • The Himalayan wolf is listed as an endangered species in certain areas of Jammu and Kashmir, Himachal Pradesh, and Uttarakhand. (allrefer.com)
  • The species is predominantly nocturnal, with most activities taking place just before dawn or after dusk. (edgeofexistence.org)
  • However, it will also demand raising awareness about these shy and nocturnal creatures for example, by engaging celebrity support and through publications celebrating the species. (iucn.org)
  • According to the IUCN Red List, the Bonin Flying Fox has been listed as a critically endangered species since 2000 and its current population is decreasing. (worldatlas.com)
  • Believed to be the most primitive of all living rabbits or hares, this little-known species is also one of the smallest. (edgeofexistence.org)
  • Hunting of the species is now illegal under Mexican law and protected areas have been established in areas containing the rabbits (Izta-Popo and Zoquiapan National Parks). (edgeofexistence.org)
  • The Amami Rabbit, scientific name Pentalagus furnessi , is a species of rabbit that is a member of the Leporidae family of rabbits and hares. (worldatlas.com)
  • In India, most of the work has been concentrated on feeding habit, prey frequency, occurrence and prey biomass of different owl species. (nhbs.com)
  • The researchers then assessed whether, and to what extent, a given species lived among each of the other 92 at those sites. (eurekalert.org)
  • Researchers announced Thursday a rare discovery of a new species of mammal called the olinguito. (thehour.com)
  • Lizards and turtles, frogs and fish have all sorts of sex chromosomes that are different from the mammal system and from each other. (cosmosmagazine.com)
  • Gene expression profiles of non-model mammals may provide valuable data for biomedical and evolutionary studies. (biomedcentral.com)
  • The measure most commonly used is the total number of species represented in the selected areas [ 6 ], but this assumes species are equivalent, ignoring the fact that they differ in the amount of evolutionary history they represent [ 10 - 12 ]. (royalsocietypublishing.org)
  • The Iriomote Cat got listed as a National Endangered Species in 1994 in Japan and as was put as being Endangered on Japan's 2012 national Red List. (worldatlas.com)