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However, it is represented by only one living species: the tuatara (Sphenodon punctatus), a superficially lizard-like reptile native to New Zealand. [ 5 ] [ 6 ] Lepidosauria is a monophyletic group (i.e. a clade ), containing all descendants of the last common ancestor of squamates and rhynchocephalians. [ 7 ]
These lizards have developed a method known as "rebreathing", in which they are able to breathe in and out using a nasal air bubble, which is made possible by a layer of air between the water and hydrophobic skin of the lizard. This hydrophobic skin, however, is a trait that can be seen among terrestrial anole species as well, that may benefit ...
A study conducted in 2014 established the existence of endogenous circadian rhythm in pigmentation changes in P. vitticeps; if exposed to sun, the dorsal skin of the lizard becomes darker, and if exposed to darkness, it becomes lighter. Under constant darkness (i.e. in the subjective night), the lizard's dorsal skin becomes the lightest. [7]
The common side-blotched lizard is a species of small iguanid lizard. Males can grow up to 60mm (2.4 inches) from snout to vent, while females are typically a little smaller. Males can grow up to 60mm (2.4 inches) from snout to vent, while females are typically a little smaller.
The Texas horned lizard (Phrynosoma cornutum) has disappeared from almost half of its geographic range. Their popularity in the early to mid-20th-century pet trade, where collectors took thousands from the wild populations to sell to pet distributors, without provision for their highly specialized nutritional needs (primarily formic acid from ...
As in other reptiles, the skin of lizards is covered in overlapping scales made of keratin. This provides protection from the environment and reduces water loss through evaporation. This adaptation enables lizards to thrive in some of the driest deserts on earth. The skin is tough and leathery, and is shed (sloughed) as the animal grows.
The Mojave fringe-toed lizard is a flat-bodied lizard with smooth skin. The color of its skin resembles the environment it inhabits, ranging from a tannish white to a grayish white, and likely contains small black spots along its back. On its underside, there are up to three crescent-shaped throat markings which are characteristic of the Mojave ...
The body length is of about 9 cm (3.5 in), with a slightly longer tail. The body is of a dark grey/brown colouration with stripes and patterns to help it camouflage against the tree trunks. The males have a yellow triangular flap of skin under the chin, the gular fold, which is used to communicate with other lizards, mostly for mating. Females ...
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