The defensive and successful reptile

Turtles are an ancient species of reptiles; they are almost as old as the dinosaurs and the crocodiles. The first turtles were said to have first appeared in the Triassic period of the Mesozoic era about 220 million years ago. Their primary feature which is the hard shell on their backs is the chief reason that they have survived countless millennia and present even today. Their hard shell provided around the clock defense system that they can rely on immediately if they were to be attacked or they were trying to be eaten. They are indeed hardy creatures that have survived and adapted to the many changes in their environment.