Reptile

Reptiles are a group of vertebrates that are part of the class Reptilia. They are tetrapod vertebrates, meaning they either have 4 limbs or, are descended from their four-legged ancestors. Modern non-bird reptiles, can be found on all continents with the exception of Antarctica. Many living groups have been classified, such as turtles, crocodilians, squamata (lizards, snakes, worm lizards), and rhynchocephalia (tuatara).