The growing environment of a person is crucial. There have been many so-called wild men or beast children with strange behaviors and animal characteristics discovered in a certain place. These beast children find it difficult to learn human languages. Although they were adopted by humans later, they still retain some animal nature and have the "super power" of a certain kind of animal. For these beast children, the "indissoluble relationship between man and animals" on them is always hard to be erased, adding more mystery to them. And at the same time, it also makes people feel pity for their situation.