Animals provide balance throughout the biosphere, affecting its dynamic appearance. Animals live in all geographical areas and are found in different natural environments: earth and air, earth, water. Depending on living conditions, their appearance, morphology, level of development are different. But each of the representatives of the animal world is important in its own way.
The importance of animals in nature as a whole is undeniable, but a person without them will not be able to live. First of all, they have always been one of the permanent sources of nutrition.