When the body length of crocodile turtles reaches 10-20 cm, male and female can be distinguished. Because they are immature in their infancy, appearance and organ development, it is difficult for breeders to distinguish male and female by their characteristics. But when they grow to about 20 cm, the appearance of male and female will change, which can be judged by breeders.

It has been written above that it is difficult for young crocodile turtles to distinguish male and female, and breeders need to wait for them to reach adulthood before they can accurately judge their male and female. If breeders want to judge male and female, they can distinguish them by abdominal armor, tail and drainage hole. The detailed differences are as follows:

1. Look at abdominal armor: There are great differences between male and female abdominal armor of crocodile turtles. If the abdominal armor of crocodile turtles has obvious depression, then they are male turtles. If the belly armor of crocodile turtles is flat, it means that they are female turtles. The depression of male turtle belly armor is mainly for the convenience of reproduction, so breeders can compare the belly armor of two turtles together.

2, look at the tail: The snapping turtle has different tails depending on its sex. Generally speaking, the tail of male turtles is longer and thicker. The tail of a mother turtle is short and thin.

Look at the drainage holes: There are also great differences in the drainage holes of crocodile turtles. First, the shapes are different. The drainage holes of female turtles are round and those of male turtles are square. Secondly, their positions are different. The female turtle's release hole is close to the tail, while the male turtle's tail is close to the abdominal armor.