Turtles are some of the oldest reptiles, with the earliest ones dating back to about 215 million years. About 300 different turtle species exist, spread all over the world. Research of fossilized remains has revealed that these creatures predate the snakes and lizards. They are one of the most ancient reptiles.
Turtles are reptiles, characterized by their cartilaginous or bony shell which acts as their defense mechanism. The shell develops out of their ribs and grows out to cover their whole bodies, except for the limbs and head.
They are ectotherms or cold-blooded creatures, that control their body temperature through external sources. They can contract t