This is related to the change of their living environment. After the glacier attack, the giant pandas left in Sichuan and Gansu can only survive by gradually changing their eating habits. As a result of the panda's long-term adaptation to the environment, it changed from eating meat to eating bamboo, and its molars became particularly wide, suitable for grinding bamboo fiber. Giant pandas like to eat cold arrow bamboo, ink bamboo, water bamboo, especially bamboo shoots.
I go somewhere to eat bamboo shoots on time every year. Giant pandas eat a lot, eating about 20 kilograms of tender bamboo every day and absorbing nutrients from a lot of fiber. Because it digests a lot of fiber and lignin every day, it especially likes drinking water.
Of course, pandas occasionally eat other small animals. If it sees a bamboo rat, slap it to death and have a good meal.