What interesting behaviors have you seen of chimpanzees?

Chimpanzees are the most recent primates to join us. Many of his behaviors will be unexpected, such as using simple tools, hitting nuts with stones, entertaining himself in tree holes with branches dipped in termites, and often hunting monkeys in droves. One of the most interesting behaviors is what I saw on TV news. This is a zoo, and everyone is watching chimpanzees. Suddenly, a mother's child fell into the park where the chimpanzee was. At this time, most people were worried, especially Ma Bao. She was afraid that the chimpanzee would hurt her baby, and the baby cried. But at this time, the chimpanzee did something that made people stunned. He picked up the baby and began to comb its hair. This is an intimate behavior, which represents the friendliness of chimpanzees. After being combed by chimpanzees, the park staff finally stepped in and took the baby out.