Natal foldback tortoises weighing about 500 grams can identify males and females. First of all, the center of the plastron of female turtles is flat, without depression, the tail is short, and the cloacal hole is closer to the rear edge of the plastron; the center of the plastron of male turtles is depressed, and the older the turtles, the greater the degree of depression, the longer and thicker the tail. , the cloacal foramen is far from the posterior edge of the plastron.