Reptiles are scaly-skinned, “cold-blooded” creatures with a bony skeleton and backbone. They live on Land, in fresh water, and in the sea. There are four main groups of reptiles alive today.
The Chelonia Group:
Tortoises, turtles, and terrapins are known as Chelonians. All members of this group, or “order”, have a body that is protected by a shell. Tortoise live on land. Turtles and terrapins live in the sea (salt water) or in rivers and ponds (fresh water)
Crocodiles, alligators, caimans and gharials all belong to the crocodilia group. Most make their homes in warm freshwater rivers, lakes, and swamps.
The world is home to about 6,500 different reptile species.
A rare breed
Today, there is only one species of reptile remaining the Rhynchocephalia group the tuatara. Tuataras are only found in one area of the world – a set of small islands of the coast of New Zealand.