The genus Varanus is considered unique among animals in that its members are relatively morphologically conservative and yet show a range in size that is equivalent to a mouse and an elephant.[8] Finer morphological features such as the shape of the skull and limbs do vary though, and are strongly related to the ecology of each species.[9][10]. Monitor lizards maintain large territories and employ active pursuit hunting techniques that are reminiscent of similar sized mammals.[11] The active nature of monitor lizards has led to numerous studies on the metabolic capacities of these lizards. The general consensus is that monitor lizards have the highest standard metabolic rates of all extant reptiles.[12]. Monitor lizards have a high aerobic scope[12][13] that is afforded, in part, by their heart anatomy. Whereas most reptiles are considered to have three chambered hearts, the hearts of monitor lizards - as with those of boas and pythons - have a well developed ventricular septum that completely ...
The exposure to environmental toxicants such cadmium (Cd) is an important research area in wildlife protection. In this study, the effect of Cd oral administration on the ovarian structure and function and on reproductive performance of the Italian wall lizard Podarcis sicula was studied. In vivo, adult female lizards were randomly assigned to three groups. Cd was given with food in single dose and in multiple doses 3 days/week for 4 weeks at dose of 1.0 μg/g body weight. Following euthanasia, the ovaries were removed and analyzed for morpho-functional changes. Results demonstrated that Cd increases prefollicular germ cells number; the evaluation of the number of follicles detects significantly higher number of atretic growing follicles, whereas primary follicles remain unchanged with respect to controls. After Cd treatments, follicles are deformed by the presence of large protrusions and a general dysregulation in the follicle organization is observed. The zona pellucida is also affected. Cd ...
Synonyms for Anolis carolinensis in Free Thesaurus. Antonyms for Anolis carolinensis. 2 synonyms for Anolis carolinensis: American chameleon, anole. What are synonyms for Anolis carolinensis?
Back at the house Daniel welcomed me with a present: A Southern Alligator Lizard, GERRHONOTUS MULTICARINATUS. Id been looking for one of these because its a bit unusual, despite the fact that its abundant and frequently seen here, and it looks a lot like the normal fence lizard, which we also have. In fact, at first I had a hard time distinguishing alligator lizards from fence lizards. It must be a case of convergent evolution because the two species are very unrelated, being in entirely different families and even suborders. You can see the taxonomic relationships among different kinds of lizards on my Lizard Classification Page at www.backyardnature.net/lizclass.htm.There youll observe that alligator lizards are about as unrelated to average lizards (iguanid lizards) such as fence lizards and anoles, as are Gila Monsters. One difference between alligator lizards and "regular lizards" is that their have bony scales (osteoderms) encasing them so effectively that their bodies are fairly ...
Monitor lizards are medium to large reptiles which can still be found in Africa, the Near East, South Asia, Indonesia and Australia. All modern monitor lizards belong to the genus Varanus. Among them are some of the most fascinating and impressive reptiles of our age, such as the Komodo Dragon (Varanus komodoensis), the largest lizard in the world.. Extinct relatives of the monitor lizards have been documented in Europe since the Eocene (56 to 34 million years ago). In our latitudes they reached their greatest distribution in the Miocene (23 to 5.5 million years ago), before they died out in Europe in the late Pliocene (about 2.5 million years ago) - or at least that was the view up till now.. New discovery near Athens ...
European Wall Lizards were introduced to the Saanich Peninsula of Vancouver Island in 1970, after the private zoo that housed the lizards closed. Since that time Wall Lizards have become firmly established and are spreading. Several separate populations are now present on Vancouver Island due to people collecting the lizards and releasing them at new locations (such as their yards and gardens). To prevent the spread of these lizards it is very important to never, never capture them or move them, even a short distance.. Wall Lizards live in some of the same areas as Northwestern Alligator Lizards. The two lizards have been seen basking on the same rocks and are suspected to hibernate together in at least one location. Little is known about the effects of Wall Lizards on Alligator Lizards but since they share habitat in some locations and eat similar things, there is potential for competition. Monitoring and study of the European Wall Lizard on Vancouver Island will help to determine if this ...
The common side-blotched lizard (Uta stansburiana) is a species of side-blotched lizard found on the Pacific Coast of North America. It is notable for having a unique form of polymorphism wherein each of the three different male morphs utilizes a different strategy in acquiring mates. The three morphs compete against each other following a pattern of rock, paper, scissors, where one morph has advantages over another but is outcompeted by the third. The specific epithet stansburiana is in honor of Captain Howard Stansbury of the US Corps of Topographical Engineers, who collected the first specimens while leading the 1849-1851 expedition to explore and survey the Great Salt Lake of Utah. The systematics and taxonomy of these widespread and variable lizards is much disputed. Countless forms and morphs have been described as subspecies or even distinct species. The forms which occur in most of Mexico (except Baja California) have been recognized as a very distinct species, the eastern side-blotched ...
Australia is not only home to venomous snakes, spiders and jellyfish, now scientists have discovered that its lizards are venomous too.. For instance little bearded dragon lizards that cruise around the suburbs have classic rattlesnake venom, scientists report in the journal Nature.. But the venom is not dangerous to humans, Dr Bryan Fry from the University of Melbournes Australian Venom Research Unit says, who led the international research team.. The lizards do not produce enough venom and what little they do is used to kill prey.. Dr Fry spent months in the Australian desert and tropics capturing, studying and milking dozens of lizards.. He and his colleagues then studied their toxins, DNA and evolution.. The researchers discovered that two common lizard lineages found in Australia, monitor lizards and iguania, have mouth glands that secrete venom toxins.. This was surprising as until now scientists had only found two lizard species around the world that produced venom, the gila monster and ...
Calcium deficiencies are common heath issue in Tokay geckos which may lead to serious health issues like Metabolic Bone Disease or MBD. Like any other reptiles, Tokay geckos need calcium for them to grow and produce healthy eggs. Calcium is an important mineral to a reptiles health but giving them with a bowl of calcium daily doesnt guarantee that they absorb or get the right amount of calcium. It is important to note however, that calcium absorption is a process that involves other processes to be able to efficiently deliver calcium in the system. Other than giving your Tokay geckos a daily dose of calcium it is also important that your Tokay geckos have enough Vitamin D3 in their system. Vitamin D3 is naturally produced in a reptiles body when exposed to UVB (ultraviolet light B) which can be done using UVB lighting or exposing your Tokay geckos to natural sunlight. UVB rays trigger the kidneys of reptiles to create vitamin D3 which is delivered into their bloodstream and enable the cells ...
Green Anole Stock Photo. csp7390979 - Male green anole lizard found in puerto rico forest. Affordable Royalty Free Stock Photography. Downloads for just $2.50, with thousands of images added daily. Subscriptions available for just $39.00. Our stock photo image search engine contains royalty free photos, vector clip art images, clipart illustrations.
Photo - image of Sand Lizard (Lacerta agilis). Free use by schools, etc., paid use 30 - 60 EUR / photo. Family: Lacertidae. Location Jernhatten. Id 89486
Several lizard species have been shown to exhibit kin recognition, including green iguanas (Iguana iguana), three Australian Scincid species (Egernia stokesii, E. striolata and Tiliqua rugosa) and common lizards (Lacerta vivipara). Thus, observations of close neighboured individuals of the common lizard that consist of differently or same-aged individuals at a given site may generate speculation about the relatedness structure of such combinations and putative
Download 2 Male Sand Lizard Lacerta Agilis Hand Stock Photos for FREE or amazingly low rates! New users enjoy 60% OFF. 73,692,823 stock photos online.
TY - JOUR. T1 - Molecular cytogenetic map of the central bearded dragon, Pogona vitticeps (Squamata: Agamidae). AU - OMeally, Denis. AU - Sarre, Stephen. AU - Georges, Arthur. AU - Ezaz, Tariq. PY - 2013. Y1 - 2013. N2 - Reptiles, as the sister group to birds and mammals, are particularly valuable for comparative genomic studies among amniotes. The Australian central bearded dragon (Pogona vitticeps) is being developed as a reptilian model for such comparisons, with whole-genome sequencing near completion. The karyotype consists of 6 pairs of macrochromosomes and 10 pairs microchromosomes (2n=32), including a female heterogametic ZW sex microchromosome pair. Here, we present a molecular cytogenetic map for P. vitticeps comprising 87 anchor bacterial artificial chromosome clones that together span each macro- and microchromosome. It is the first comprehensive cytogenetic map for any nonavian reptile. We identified an active nucleolus organizer region (NOR) on the sub-telomeric region of 2q by ...
To those not familiar with them, glass lizards in the genus Ophiosaurus (literally, snake [ophio-] -lizard [saurus]) look rather like a snake with ears and blinking eyes. Careful inspection of the vent area in some species will show tiny spurs, similar to a boa or python. Related to the alligator lizards (Gerrhonotus), their head and body shape are reminiscent of those species, including the conical teeth and lateral fold. They are very un-snakelike when held, being firm in the body like an alligator lizard or large skink, rather than the softly supple body associated with snakes.. Legless lizards are found in the Old and New Worlds, ranging in areas of Indonesia, southern Asia, the Near East, southeastern Europe, North Africa, and North America. The European and American legless lizards are in the family Anguidae, Anniellidae, and Xenosauridae; the Australasian ones in the family Pygopodidae. Some of the Anguidae legless lizards are called lateral fold lizards due to the pronounced lateral fold ...
Mark-recapture techniques were used to investigate population size, age distribution, size distribution and sex ratio in a population of the lacertid lizard Podarcis bocagei in an abandoned gravel pit in northwest Spain. The study was carried out over a 2-year period. Despite relatively high maximum longevity, the population age distribution was characteristic of small, short-lived lizard species (i.e., there was a relatively high proportion of immature individuals). Population size declined over the study period, largely because of a drop in the number of immature animals: this may be partially attributable to density-dependent factors, but was probably due largely to a decline in habitat favourability as a result of colonisation of the study site by vegetation. The sex ratio was significantly female-biased in all cohorts studied, not only among adults but also among juveniles and sub-adults. However, sex ratio at hatching (as investigated by laboratory hatching of clutches laid by captured pregnant
Sand Lizards shut out Tigers 42-0 - WEST FORK †The Dardanelle Sand Lizards spoiled West Forkâ€â ˘s homecoming Friday night and claimed a 42-0 victory. Actually better make that senior quarterback Elyas Carter and the Sand Lizards (6-0 3-0 4A-4 ...
Junior Sand Lizards tie with Eastside - DARDANELLE-The Dardanelle Junior Sand Lizards were not intimidated by their larger neighbors from across the Arkansas River as the Junior Sand Lizards fought to a 20-20 tie with the Russellville Junior High ...
Photo/image Sand Lizard (Lacerta agilis), Family: Lacertidae. Location Skagen Klitplantage, Danmark. Photographer: JC Schou, Photoid 74206
It has been speculated that the oral flora of the Komodo dragon (Varanus komodoensis) exerts a lethal effect on its prey; yet, scant information about their specific oral flora bacteriology, especially anaerobes, exists. Consequently, the aerobic and anaerobic oral bacteriology of 16 captive Komodo dragons (10 adults and six neonates), aged 2-17 yr for adults and 7-10 days for neonates, from three U.S. zoos were studied. Saliva and gingival samples were collected by zoo personnel, inoculated into anaerobic transport media, and delivered by courier to a reference laboratory. Samples were cultured for aerobes and anaerobes. Strains were identified by standard methods and 16S rRNA gene sequencing when required. The oral flora consisted of 39 aerobic and 21 anaerobic species, with some variation by zoo. Adult dragons grew 128 isolates, including 37 aerobic gram-negative rods (one to eight per specimen), especially Enterobacteriaceae; 50 aerobic gram-positive bacteria (two to nine per specimen), ...
tags: Green Anole, Anolis carolinensis, reptiles, North Carolina, Image of the Day "I am the Anole King, I can do anything." Green Anole, Anolis carolinensis, Carolina Beach, NC. Image: Don Wirth [larger].. ...
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The Monitor Lizard is large; adults can grow up to 7 feet in length. A vicious predator that will eat anything it can fit into its mouth. Native to Africa, the Monitor Lizard has successfully...
The wall lizard is very agile and, unlike British lizards which spend their time on the ground, can often be seen running up verticle surfaces like rock faces and - of course - walls. Releasing non-native reptile species into the wild is illegal, and some evidence suggests native lizard numbers have fallen in areas where wall lizards have become established.. To better undestand the animals and their impact on local wildlife, scientists are asking members of the public to help them track the reptiles.. Robert Williams, running the study, said, "They are very easy to spot basking on sunny days. Considerable survey effort is required to get around to all the known wall lizard sites and there is a need for updated population surveys, assessment of range expansion, and of course identification of new populations. "This is where we need your help! You can help us assess just how widespread the lizards are in the UK and make a valuable contribution to this project by reporting your own wall lizard ...
Agilis During Lacerta Lizards: 3 assigned downloads, like Male Sand Lizard Lacerta agilis, lying exposed on a rock from stock-photos
Wall lizards of the genus Podarcis (Sauria, Lacertidae) comprise 17 currently recognized species in southern Europe, where they are the predominant nonavian reptile group. The taxonomy of Podarcis is complex and unstable. Based on DNA sequence data, the species of Podarcis falls into four main groups that have substantial geographic coherence (Western island group, southwestern group, Italian group, and Balkan Peninsula group). The Balkan Peninsula species are divided into two subgroups: the subgroup of P.taurica (P. taurica, P. milensis, P. gaigeae, and perhaps P. melisellensis), and the subgroup of P. erhardii (P. erhardii and P. pelo- ponnesiaca). In the present study, the question of phylogenetic relationships among the species of Podarcis encountered in the Balkan Peninsula was addressed using partial mtDNA sequences for cytochrome b (cyt b) and 16S rRNA (16S). The data support the mono- phyly of Podarcis and suggest that there are three phylogenetic clades: the clade A (P. taurica, P. ...
The diet of some horned lizards consists of specific insects, while other species are more catholic in their tastes. Not only does P. solare prefer ants, it has a strong preference for harvester ants, which may make up to 90 percent of its diet. As diets go, ants are low return items because so much of their body consists of indigestible chitin. Thus, the regal horned lizard must eat a great number of ants to meet its nutritional needs. This diet requires space, which is why the stomach of the regal horned lizard may represent up to 13 percent of its body mass. Ant-eating horned lizards usually capture their prey with their sticky tongues rather than grabbing it with their jaws. In addition, they have modified skeletal morphologies, such as shorter teeth and reduced diameter of the bones of the lower mandible.. Horned lizards are no exception to the general rule that lizards are not attracted to dead insects as food the ants must be alive and moving for the lizard to show interest in them as ...
The worlds largest lizard, Komodo dragons live on five small islands in Indonesia. The saliva of these creatures contains at least 57 species of bacteria, which are believed to contribute to the demise of their prey. Yet, the Komodo dragon appears resistant to these bacteria, and serum from these animals has been shown to have antibacterial activity. Substances known as cationic antimicrobial peptides (CAMPs) are produced by nearly all living creatures and are an essential part of the innate immune system. So, Barney Bishop, Monique van Hoek and colleagues at the College of Science at George Mason University wondered whether they could isolate CAMPs from Komodo dragon blood, as they previously had done with alligator blood to expand the library of known CAMPs for therapeutic studies ...
Why bother running on hind legs when the four youve been given work perfectly well? This is the question that puzzles Christofer Clemente. For birds and primates, theres a perfectly good answer: birds have converted their forelimbs into wings, and primates have better things to do with their hands. But why have some lizards gone bipedal? Have they evolved to trot on two feet, or is their upright posture simply a fluke of physics? Curious to find the answer, Clemente and his colleagues Philip Withers, Graham Thompson and David Lloyd decided to test how dragon lizards run on two legs (p. 2058).. But first Clemente had to catch his lizards. Fortunately Thompson was a lizard-tracking master. Driving all over the Australian outback, Clemente and Thompson eventually collected 16 dragon lizard species, ranging from frilled neck lizards to the incredibly rare C. rubens, found only on one remote Western Australian cattle station. Returning to the Perth lab, Clemente and Withers set the lizards running ...
Naïve large Australian varanid lizards have recently been shown to suffer a massive increase in mortality (| 95%) when attempting to feed on this toxic amphibian. The high susceptibility of Australian varanids to toad toxin is caused by minor mutations in the sodium-potassium-ATPase enzyme. In the present study we show that Komodo dragons (Varanus komodoensis)…
Collared lizards are capable of running swiftly on their hind legs, the body held off the ground at a 45 angle, with tail and forelimbs raised. The stride is up to 3 times the length of the body. They do not lose their tails easily, as they are useful in maintaining balance as the lizards sprint on hind legs. Speed facilitates the capture of prey by these visually oriented lizards. They have large heads with strong jaw muscles that allow them to get a powerful grip on large prey such as lizards. Though fairly bold, if confronted by a predator, collared lizards quickly dive into rock crevices to avoid being eaten.. These lizards often sit on large rocks basking in the sun and looking out for other individuals or food. Males are highly territorial and have stereotypical head-bobbing and push-up displays. Collared lizards primarily eat grasshoppers, but also eat other insects as well as lizards, including their own species. In early summer females lay 1 to 13 eggs; they are capable of reproducing ...
Children got an unconventional geography lesson Thursday from a lizard and reptile expert who brought a world of living dragons to the Lovell Room of the Stratford Library. Brian Kleinman of Riverside Reptiles of Connecticut in Hartford introduced 60 children and 33 adults to about a dozen lizards, one legless lizard and a snake, sharing with the audience some information about each creature, including their native habitats and what they like to eat. The tiger salamander, for instance, is native to the United States, while the leopard gecko is found in the harsh environments of western India and the Middle East, where there are extremes of cold and heat, he said. [...] no, it doesnt talk or sell insurance, Kleinman said of the gecko, familiar to many as the animated spokesreptile on TV ads for Geico Insurance. Children enjoyed watching a bearded dragon eat its favorite food: a live baby cockroach, and a 5-foot-long, 20-pound Argus monitor lizard, a relative of the giant Komodo dragon, snack
New research from a study in Science claims that nearly 40% of all lizard populations, and 20% of species could become extinct by 2080, due to the effects of continuing climate change. The study uses basic biological models and observed patterns of extinction to model potential future extinction risks for lizard populations.. Interestingly, it is higher springtime temperatures that are causing problems for lizard populations, which are actually not as susceptible to climate change as their amphibian cousins. Typically, lizards resist thermal stress fairly well, but when a lizard needs to cool, it finds protection in the shade and and has less time to forage for food. Less time spent foraging means that the lizards energy reserves are spent more quickly. 24 of 200 previously documented populations of Mexican Scleroporus lizards have gone extinct, and extinction probability was linked to these increased springtime temperatures. Energy needs are highest in springtime when reproduction occurs, and ...
Footage of a python regurgitating a large monitor lizard. Rescue workers arrived after the snake slithered under a patio at a home in Samut Songkram, Thailand, on November 20. They smashed the concrete and dragged the serpent into a pick-up truck to be driven away and released into the wild. But the 17ft-long python was disturbed by vibrations from the moving vehicle - and was filmed slowly regurgitating the enormous 15kg lizard. The 5ft long monitor emerged lifeless as it lay at the back of the truck next to the snake. Shocked resident Uraiwan Konhasuk, 43, said: I was drying my clothes at the back of the house and found a large snake that had crawled under a gap in the concrete. I was shocked at the size of it and ran inside to call the rescue staff. The backyard is a wilderness and has a lot of wildlife but I would never have believed that a snake could eat a lizard that big. Volunteers from Sawang Benchait foundation said it took an hour to free the snake from its hiding place where it
The poor, lowly lizard. Who cares? As you know, reptiles are amongst the oldest land animals on the planet. They were once pretty big. They once ruled the earth. When things changed the big ones didnt do so well. The smaller reptiles who could hide in the earth survived a long period of harsh conditions. When they emerged, they had competition; they became the hunted. I like to think of the common fence lizards as One Lizard. One Lizard, with its body comprised of millions upon millions of independently operated franchises. Kinda like Starbucks. There is one in every corner... of your back yard. After all, the same (almost exact) DNA exists in each and every lizard. They are part and parcel of the One Lizard. To survive over millions of years, the One Lizard had to adapt to changing conditions. But the change could only come from the bottom up, from the feet on the ground. The One Falcon and the One Bobcat, amongst others, were always trying to make life impossible for the One Lizard, by eating ...
During late summer Common Lizards and Slow-Worms give birth to their young. The females incubate the eggs inside themselves rather than laying them externally. Juvenile Common Lizards can be as little as an inch long and are usually quite black in colour. Baby Slow-Worms are around two inches long and very thin; theyre black underneath and gold on top with a black stripe running down the back.. Sand Lizards lay their eggs in May/June; they bury them in sand which is exposed to the sun so the eggs can reach the right temperature. Juvenile lizards emerge from August onwards.. Adults may still be seen in early mornings or late evenings but the heat of a summers day is too much for more lizards and they will seek shelter ...
Many species of lizards release their tail when they want to escape from a predator. The tail then continues to wriggle like a living creature, which distracts the predator away from the lizards vulnerable body, allowing it to escape while the predator is left holding or trying to catch the expendable tail. Thats one strategy. A study of lizards in Greece concluded that the lizards there drop their tails when bitten on the tail by venomous snakes. That way the venom does not reach the lizards body. This tail dropping is called Caudal Autotomy. Losing the tail does not seriously harm the lizard, and may save its life, but the loss of a tail might have a negative effect on the lizards ability to run quickly, its attractiveness to the opposite sex, and its social standing. Dropped tails do grow back, but these regenerated tails are often not as long or as perfect as the original. It is not uncommon to find lizards in the wild with no tail or with a partially regenerated tail, so tail autotomy ...
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Spiders, snakes, birds, and even other lizards all want a piece of the dragon lizard, so they have some of the most effective camouflage around. Not only do dragon lizards look nearly invisible when hanging out on a tree branch, they keep extraordinarily still, knowing that their predators react to the smallest movements. It doesnt make for an exciting life, but at least they live to tell about it.. ...
We describe a new species of Gallotia from Tenerife (Canary Islands). This lizard is intermediate in size between the two smaller (G. atlantica and G. galloti) and the two larger (G. simonyi and G. stehlini) species. Furthermore, it differs from the two similar larger Gallotia in the number of supratemporal scales (mode 4 instead of mode 2), usually 16 longitudinal ventral scalerows, and having distinctive dorsal yellow spots, and small lateral yellow or blue spots. Individuals from a small population located in La Hábiga show a pale gray reticulation on dorsum and absence of ocelli in the lateral region. Univariate and multivariate analyses of nine meristic variables of each extant species within the genus Gallotia revealed significant variation. Principal component analyses support the existence of three main morphological clusters within the genus, the new lizard being nearest to G. simonyi and G. stehlini. Molecular data from mtDNA sequences (cytochrome b and 12S ribosomal RNA) indicate ...
Preface Stephen M. Reilly, Lance D. McBrayer, and Donald B. Miles; Historical introduction: on widely foraging for Kalahari lizards Raymond B. Huey and Eric R. Pianka; Part I. Organismal Patterns of Variation with Foraging Mode: 1. Movement patterns in lizards: measurement, modality, and behavioral correlates Gad Perry; 2. Morphology, performance and foraging mode Donald B. Miles, Jonathan B. Losos and Duncan J. Irschick; 3. Physiological correlates of lizard foraging mode Kevin E. Bonine; 4. Lizard energetics and the sit-and-wait vs. wide-foraging paradigm Tracey Brown and Kenneth A. Nagy; 5. Feeding ecology in the natural world Eric R. Pianka and Laurie J. Vitt; 6. Why is intraspecific niche partitioning more common in snakes than in lizards? Richard Shine and Mike Wall; 7. Herbivory and foraging mode in lizards Anthony Herrel; 8. Lizard chemical senses, chemosensory behavior, and foraging mode William E. Cooper, Jr.; 9. Patterns of head shape variation in lizards: morphological correlates of ...
aLooks at the Nile monitor lizard and examines how lizards imported as pets became an invasive species in southern Florida and other places outside of its native Africa, how it causes problems, and how Florida has attempted to deal with it ...
By Sarah Yang, UC Berkeley. The Western fence lizards reputation for helping to reduce the threat of Lyme disease is in jeopardy. A new study led by researchers at the University of California, Berkeley, found that areas where the lizard had been removed saw a subsequent drop in the population of the ticks that transmit Lyme disease.. "Our expectation going into this study was that removing the lizards would increase the risk of Lyme disease, so we were surprised by these findings," said study lead author Andrea Swei, who conducted the study while she was a Ph.D. student in integrative biology at UC Berkeley. "Our experiment found that the net result of lizard removal was a decrease in the density of infected ticks, and therefore decreased Lyme disease risk to humans.". The study, published online Tuesday, Feb. 15, in the journal Proceedings of The Royal Society B, illustrates the complex role the Western fence lizard (Sceloporus occidentalis) plays in the abundance of disease-spreading ...
Leopard Geckos | Health & Diseases - If you think that your leopard gecko is sick or have specific questions about leopard gecko health, disease, or p
Anchoring genome sequence to chromosomes of the central bearded dragon Pogona vitticeps enables reconstruction of ancestral squamate macrochromosomes and identifies sequence content of the Z chromosome. . Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.
Upton, S.J.; McAllister, C.T.; Garrett, C.M., 1993: Description of a new species of Eimeria (Apicomplexa: Eimeriidae) from Heloderma suspectum (Sauria: Helodermatidae)
Background The largest living lizard species, Varanus komodoensis Ouwens 1912, is vulnerable to extinction, being restricted to a few isolated islands in eastern Indonesia, between Java and Australia, where it is the dominant terrestrial carnivore. Understanding how large-bodied varanids responded to past environmental change underpins long-term management of V. komodoensis populations. Methodology/Principal Findings We reconstruct the palaeobiogeography of Neogene giant varanids and identify a new (unnamed) species from the island of Timor. Our data reject the long-held perception that V. komodoensis became a giant because of insular evolution or as a specialist hunter of pygmy Stegodon. Phyletic giantism, coupled with a westward dispersal from mainland Australia, provides the most parsimonious explanation for the palaeodistribution of V. komodoensis and the newly identified species of giant varanid from Timor. Pliocene giant varanid fossils from Australia are morphologically referable to V.
Each animal was killed by decapitation and transection of the spinal cord in accordance with the British Home Office Animals (Scientific Procedures) Act 1986, Schedule 1. Each individual was then immediately transferred to a bath containing refrigerated (1-3°C), oxygenated (95% O2; 5% CO2) lizard Ringer solution (Johnson et al., 1993) and iliotibialis, a knee extensor, was isolated from the left hind-limb. A few muscle fibres were removed to ensure that the muscle fibres in the resultant muscle preparation had a low angle of pennation. Bone and tendon was left intact at the origin and the insertion of each muscle.. For each muscle preparation, the bone at one end was clamped using crocodile clips to a calibrated load cell (UF1, Pioden Controls Ltd, Canterbury, UK) and the bone at the other end was clamped to a motor arm (V201, Ling Dynamics Systems, Royston, UK) attached to a calibrated linear variable displacement transducer (DFG 5.0, Solartron Metrology, Bognor Regis, UK). Each muscle was ...
Named for their long whip-like tails, these lizards are speedy and very cute! Our sterling silver Whiptail Lizard Pendant strikes the same pose that you so often see these lizards adopt. It is perfect for the nature lover in you! Original design by Patricia Frey. Lifetime Warranty and Free Shipping!
...A combined tooth-venom arsenal revealed as key to Komodo Dragons hunt...A new study has shown that the effectiveness of the Komodo Dragon bite...Using sophisticated medical imaging techniques an international team ...The work will be published in the next issue of the journal Proceed...,A,combined,tooth-venom,arsenal,revealed,as,key,to,Komodo,dragons,hunting,strategy,biological,biology news articles,biology news today,latest biology news,current biology news,biology newsletters