There are a lot of activities in mauremys mutica from the end of April to the end of September every year. The optimum environmental temperature is 20℃ ~ 30℃, and about 65438 05℃ is the transition stage of turtles from active state to hibernating state. The tortoise goes into hibernation at about 10℃. At the end of March, although the tortoise woke up at the temperature of 15℃, it only crawled and didn't eat. In April, the temperature rises to about 20℃ before eating. After hibernation, the turtle lost about 50 ~100g. When raised in a pond, the water level can exceed twice or even higher than the height of the turtle shell.