Well, today let us know about what is animal through its basic knowledge. Animal always are human’s friends which live with people together on the earth. According to zoologists and biologists’ research and discovery, we have known a lot of new species we never know before. Actually, Human also belongs to animal, merely we are higher animals with wisdom may change world. By this time let us understand the basic information about what is animal?Steel Pipe
Animal taxonomists classify animals according to their various characteristics (morphology, cell, heredity, physiology, ecology, geographical distribution, etc.), and divide them into six main classes in turn, namely, phylum, class, order, family, genus and species.
According to fossil studies, the earliest animals on Earth originated from the oceans. After a long geological period, early marine animals gradually evolved various branches, enriching the early life forms of the Earth.
Before the emergence of human beings, prehistoric animals had appeared and flourished in their respective periods of activity. Later, they became extinct in a changing environment. However, the animals on the earth continue to evolve and multiply from low to high, from simple to complex, and have diversity today.