Search results
Results from the WOW.Com Content Network
Reptile skin is covered with scutes or scales which, along with many other characteristics, distinguish reptiles from animals of other classes. They are made of alpha and beta-keratin and are formed from the epidermis (contrary to fish, in which the scales are formed from the dermis ).
Compared to mammalian skin, that of reptiles is rather thin and lacks the thick dermal layer that produces leather in mammals. [97] Exposed parts of reptiles are protected by scales or scutes, sometimes with a bony base , forming armor. In lepidosaurs, such as lizards and snakes, the whole skin is covered in overlapping epidermal scales. Such ...
2.2 Examples of reptiles. ... 4 Characteristics of reptiles. 5 Reptile reproduction. 6 Human impact on reptiles. ... List of reptiles.
Squamata (/ s k w æ ˈ m eɪ t ə /, Latin squamatus, 'scaly, having scales') is the largest order of reptiles, comprising lizards and snakes.With over 12,162 species, [3] it is also the second-largest order of extant (living) vertebrates, after the perciform fish.
Download as PDF; Printable version; In other projects Wikidata item; ... Diseases of reptiles. Pages in category "Reptile diseases" The following 7 pages are in this ...
Herpetology (from Greek ἑρπετόν herpetón, meaning "reptile" or "creeping animal") is a branch of zoology concerned with the study of amphibians (including frogs, salamanders, and caecilians (Gymnophiona)) and reptiles (including snakes, lizards, turtles, crocodilians, and tuataras).
The small reptile would have likely roamed the land of what is today southern Brazil, when the world was much hotter. The fossil has been identified as a new silesaurid, an extinct group of reptiles.
The scales of all reptiles have an epidermal component (what one sees on the surface), but many reptiles, such as crocodilians and turtles, have osteoderms underlying the epidermal scale. Such scales are more properly termed scutes. Snakes, tuataras and many lizards lack osteoderms. All reptilian scales have a dermal papilla underlying the ...