Hints: Kyoto University Monkey Center 16秒左右有一处破折号 相关链接： 上期链接戳这里
For example, chimpanzees have been seen stripping the leaves off a branch, then putting it into a termite nest. When the termites bite at the stick, the chimpanzee removes it and eats them off the end - like our use of a fork. For some time we thought that although human beings learned their culture, animals could not be taught such behavior. Or even if they could learn, they would not teach one another in the way humans do. This, too, has proven to be untrue. A group of Japanese monkeys was studied at the Kyoto University Monkey Center in Japan. They were given sweet potatoes by scientists who wanted to attract them to the shore of an island. One day a young female began to wash her sweet potato to get rid of the sand. This practice soon spread throughout the group. It became learned behavior, not from humans but from other monkeys. Now almost all the monkeys who have not come into contact with this group do not. Thus there is a cultural different among animals.