In animal taxonomy, it belongs to reptiles, turtles and turtles, and is one of the common turtles. This is an ancient reptile. Its characteristic is that its shell is very strong. When attacked, turtles can retract their heads, tails and limbs into their carapace (except turtles and snapping turtles). Most sea turtles are carnivores, feeding on worms, snails, shrimp and small fish, as well as stems and leaves of plants.
Except Northeast China, Northwest China and Xizang Autonomous Region, it is distributed in other places, but the output in the middle and lower reaches of the Yangtze River is higher. This species is widely distributed and is the most common species among turtles in China. The original quantity was very large, but now it has been drastically reduced, and there are still some on sale in Anhui, Hubei, Guangdong, Guangxi, Shanghai and other cities.