Tortoise shells come in different shapes, some like shields and some like hills. The colors are different, some are red, some are yellow and some are gray. The turtle's shell is very hard, which can protect the turtle from natural enemies. The tortoise shell is composed of several bone plates, which are put together like a jigsaw puzzle to form the tortoise shell.

The tortoise is a reptile belonging to the tortoise family. The head is small, not as wide as 1/4 of the posterior nail, the front of the head is smooth, and the skin at the back has fine granular scales; The snout is obliquely cut inward, and the horny sheath at the beak edge is thin; The angle between the left and right odontoid bones of mandible is less than 90.