Reptiles
Fact file
Proper name: Phylum Chordata, Class Reptilia
Common name: Reptiles
Examples: Crocodiles, snakes and lizards, turtles
Numbers of species: Over 5,000 (although most of these are snakes and lizards)
Where they are found: On land, in the oceans, and in freshwater
Description: Reptiles have lots of different body forms, but most have dry scaly skin. They usually lay small clutches of eggs and can look after their young.
Need to know: Reptiles, amphibians and fish are usually described as being 'cold blooded', because they do not maintain a constant body temperature, as mammals and birds do. Their blood is not really cold though, because they can warm themselves in the sun.
Go back to the Tree of life to find out more about other living things.


