Reptiles Wallpapers

Saturday, February 2, 2013

Reptiles Wallpapers

               Reptiles are members of the class Reptilia comprising the amniotes that are neither birds nor mammals. Living reptiles, in that sense, can be distinguished from other tetrapods in that they are cold-blooded and bear scutes or scales. Reptiles originated around 320-310 million years ago during the Carboniferous period, having evolved from advanced reptile-like amphibians that became increasingly adapted to life on dry land.
                Modern reptiles inhabit every continent with the exception of Antarctica. Several living subgroups are recognized:
                - Testudines (turtles, terrapins and tortoises): approximately 330 species;
                - Sphenodontia (tuataras from New Zealand): two species;
                - Squamata (lizards, snakes, and worm lizards): over 9,000 species;
                - Crocodilia (crocodiles, gavials, caimans, and alligators): 25 species.

Saltwater crocodile wallpapers                  Milk snake wallpapers