There are over two thousand animal spices in the world, but only two or three dozens of them are domesticated. All the rest live in the wild nature, and are not domesticable. They are usually referred to wild animals. Wild animals are distinguished from the domestic ones by external appearance, behavior and feeding habits. But the key difference between them is their attitude to humans. Wild animals always see people as enemies rather than friends. Their fear for humans is genetic, and even if you manage to tame one of them, its joeys will not be born tamed.