Rare animals should not be put into zoos.These animals must be left in the wild while being closely watched by animal protectors.Though animals that live in zoos have longer life spans than those living in the wild,animals are deprived of their wild nature （被剥夺了自然的本性）in the zoos.Imagine that one species only live in zoos.These animals will not survive in the nature because they have already been dependant on humans.These animals do not know how to hunt for foods,because humans give them foods in zoos.It's good only for us to keep the rare animals in the zoos and to be entertained; it's good,however,for the very animals to be kept in the wild.