World of animals. Despite the fact that a person is considered a mammal, that is, the man is also the animal, the human world is different from the animal. The animal world is based only on instinct. It sounds unpleasant, but it is natural for the animals. However, the fauna is very beautiful. Many animals are grace, beauty, and some even mind. The combination of all the animals and is the animal world. And all these animals around us. Even your pet cat a part of the animal world. People must be treated with respect to their world. The fauna is an integral part of the whole world, the whole ecosystem.