About Reptiles

Reptiles (Reptilia) are a diverse group of vertebrates that includes creatures such as snakes, amphisbaenians, lizards, alligators, caimans, crocodiles, tortoises, turtles, and tuataras. There are approximately 7900 species of reptiles alive today that inhabit a wide range of temperate and tropical habitats including deserts, forests, freshwater wetlands, mangroves and open ocean.

 http://animals.about.com/od/reptiles/p/reptiles.htm