• behaviour
  • These constructions may arise from complex building behaviour of animals such as in the case of night-time nests for chimpanzees, from inbuilt neural responses, which feature prominently in the construction of bird songs, or triggered by hormone release as in the case of domestic sows, or as emergent properties from simple instinctive responses and interactions, as exhibited by termites, or combinations of these. (wikipedia.org)
  • In other words, suitable types of felting can yield controllable isotropy or anisotropy in the behaviour of a structure. (wikipedia.org)
  • Many species of animals actively employ felting behaviour in preparing shelters for themselves or their young. (wikipedia.org)
  • phyla
  • It is virtually absent from all the other animal phyla. (wikipedia.org)
  • In the 1970s there was already a debate about whether the emergence of the modern phyla was "explosive" or gradual but hidden by the shortage of Precambrian animal fossils. (wikipedia.org)
  • At the time these were interpreted as evidence that the modern phyla had evolved very rapidly in the Cambrian explosion and that the Burgess Shale's "weird wonders" showed that the Early Cambrian was a uniquely experimental period of animal evolution. (wikipedia.org)
  • humans
  • Nature abounds with structures built by animals other than humans, or animal architecture, as it is commonly termed, such as termite mounds, wasp and beehives, burrow complexes of rodents, beaver dams, elaborate nests of birds, and webs of spiders. (wikipedia.org)
  • Uniped: 1 leg, such as clams Biped: 2 legs, such as humans and birds Triped: 3 legs, which does not occur naturally in healthy animals Quadruped: 4 legs, such as dogs and horses Many taxa are characterized by the number of legs: Tetrapods have four legs. (wikipedia.org)
  • Apart from fibres in felted fabric manufactured by humans, the term "felted" may apply to the condition of hair such as in the pathological condition known as felted hair, or it may apply to the tangled threads of the tissue of certain fungi, to matted fibres in animal connective tissue, or to the felted outer coat of certain plants. (wikipedia.org)
  • eukaryotes
  • Sexual reproduction, which involves the fusion of male and female reproductive cells (gametes) to create a zygote in a process called fertilization is, in contrast to asexual reproduction, the primary method of reproduction for the vast majority of macroscopic organisms, including almost all eukaryotes (which includes animals and plants). (wikipedia.org)
  • species
  • One species of African elephant, the bush elephant, is the largest living terrestrial animal, while the forest elephant is the third-largest. (wikipedia.org)
  • Marine species range in size from the microscopic, including plankton and phytoplankton which can be as small as 0.02 micrometres, to huge cetaceans (whales, dolphins and porpoises) which in the case of the blue whale reach up to 33 metres (109 feet) in length, being the largest known animal. (wikipedia.org)
  • The structure of a given species of algae is referred to as its type or level of organization (de). (wikipedia.org)
  • Tissues
  • Examples of the description of animal tissues as "felted" include classes of connective tissue such as the dermis which the classic Gray's Anatomy describes as: "felted connective tissue, with a varying amount of elastic fibers and numerous bloodvessels, lymphatics, and nerves. (wikipedia.org)
  • mammals
  • For example, although truly felted hair on healthy mammals is unusual, many animals, especially in seasonally cold or wet climates or environments, often have a so-called undercoat of down hair plus awn hair that usually lies hidden beneath the outer coat of guard hairs, and may form a mat of lightly felted wool. (wikipedia.org)
  • shelters
  • In endothermic animals, construction of shelters, coupled with behavioural patterns, reduces the quantity and energy cost of thermoregulation, as in the case of the Arctic ground squirrels. (wikipedia.org)
  • The dynamics of heat in animal shelters is influenced by the construction material which may act as a barrier, as a heat sink or to dissipate heat. (wikipedia.org)
  • different
  • I appreciated that this course was not something like a 'survey' of animals in which we learned about tons of different phylas of animals. (bamfieldmsc.com)
  • They may be created by individuals or complex societies of social animals with different forms carrying out specialised roles. (wikipedia.org)
  • includes
  • The earliest widely accepted animal fossils are the rather modern-looking cnidarians (the group that includes jellyfish, sea anemones and Hydra), possibly from around 580 Ma The Ediacara biota, which flourished for the last 40 million years before the start of the Cambrian, were the first animals more than a very few centimetres long. (wikipedia.org)
  • Later discoveries of similar animals and the development of new theoretical approaches led to the conclusion that many of the "weird wonders" were evolutionary "aunts" or "cousins" of modern groups-for example that Opabinia was a member of the lobopods, a group which includes the ancestors of the arthropods, and that it may have been closely related to the modern tardigrades. (wikipedia.org)
  • general
  • I thought the material covered in this course was really valuable because it forced us to think critically and could be applied to many animals, and some concepts could even be applied to other areas (i.e. general mechanics, building structures). (bamfieldmsc.com)
  • shape
  • In a case apparently of masquerade, the red-faced spinetail Cranioleuca erythrops places bits of grass and other material loosely streaming both above and below the nest chamber to break the shape of the nest and to cause it to resemble random debris without any underlying structure. (wikipedia.org)
  • A leg is a weight bearing and locomotive anatomical structure, usually having a columnar shape. (wikipedia.org)
  • evolution
  • Historically body plans were thought of as having evolved in rapidly during the Cambrian explosion, but a more nuanced understanding of animal evolution suggests a gradual development of body plans throughout the early Palaeozoic and beyond. (wikipedia.org)
  • material
  • Felted is a term variously applied to hairy or otherwise filamentous material that is densely packed or tangled, forming felt or felt-like structures. (wikipedia.org)
  • complex
  • However, there seems little doubt that Kimberella was at least a triploblastic bilaterian animal, in other words, an animal significantly more complex than the cnidarians. (wikipedia.org)
  • found
  • Some tiny Early Cambrian shells almost certainly belonged to molluscs, while the owners of some "armor plates," Halkieria and Microdictyon, were eventually identified when more complete specimens were found in Cambrian lagerstätten that preserved soft-bodied animals. (wikipedia.org)
  • large
  • Roads, especially roads with a large amount of traffic can be very dangerous for migrating animals that could get hit by a vehicle. (greenanswers.com)
  • The cecum is a pouchlike structure of the colon, located at the junction of the small and the large intestines. (wikipedia.org)
  • known
  • A re-analysis of fossils from the Burgess Shale lagerstätte increased interest in the issue when it revealed animals, such as Opabinia, which did not fit into any known phylum. (wikipedia.org)
  • alternative
  • This fund is intended to research, develop and market projects to reduce the amount of nutrients in animal waste, or develop alternative waste management strategies. (equiery.com)
  • Cuvier asserted that animal structure was determined by an organism's functional needs while Geoffroy suggested an alternative theory that all animal structures were modified forms of one unified plan. (wikipedia.org)
  • amount
  • Finally, a few bills of interest that were filed late: HB 1303 (which doubles from $100,000 to $200,000 per practice the maximum amount of state cost sharing for water pollution control projects such as manure storage structures, steam fencing and crossings, etc.) passed both houses. (equiery.com)
  • forms
  • Prior to the debate, biological scientists were generally split into two major factions: whether animal structure was determined by functional needs of an animal or the "conditions of existence" (Cuvier), or a basic unified form that was modified across all animal forms (Geoffroy). (wikipedia.org)
  • Development
  • In ectothermic animals, moderation of temperature, along with architectural modifications to absorb, trap or dissipate energy, maximises the rate of development, as in the case of the communal silk nests of the small eggar moth Eriogaster lanestris. (wikipedia.org)
  • HB 1404 was enacted, moving the Animal Waste Technology Fund from the Dept. of Business and Economic Development to the Dept. of Agriculture. (equiery.com)
  • debate
  • Nevertheless, there is still much debate about whether the Cambrian explosion was really explosive and, if so, how and why it happened and why it appears unique in the history of animals. (wikipedia.org)
  • small
  • These animals had three toes on the hind feet and four on the front feet with small hooves in place of claws but also had soft pads. (wikipedia.org)
  • help
  • Not only can we help you organize all your tools and toys with a custom shed but we can also help you organize all your Animals and critters with our custom coops, barns, & kennels. (gandbsheds.com)
  • waste
  • This structure helps in the proper movement and removal of waste matter in the digestive system, contains lymphatic vessels that regulate pathogens, and lastly, might even produce early defences that prevent deadly diseases. (wikipedia.org)