In this program you as a student will begin to discover all the many different kinds of turtles. You will discover different characteristics of the different kinds of turtles. There are seven main groups of turtles.
Turtles are the only reptiles with a shell.
Most kinds of turtles can pull their head, legs, and tail into their shell, which serves as a suit of armor. Few other backboned animals have such excellent natural protection. Turtles cannot be warm and active in cold weather, and so they cannot live in regions that are cold throughout the year. There are about 250 species of turtles, about 50 of which live in North America north of Mexico. Some turtles live only on land, but others spend almost their entire life in the sea.