What is an animal? We will try to bring the answer to this question closer to you through the history of animals. It’s believed in science the first animals appeared in the Precambrian, about 700 million years back, while some scientists think that the creation of the first animal cell happened about a billion years back. Great morphological differences between today’s groups appeared in the Cambrian, or at the Ediakaria. These groups of animals were likely present at the time: sponges, anemones, mollusks, arthropods (Ang elides), and arthropods.
To answer the question – what is an animal? We need to know something about their eating habits. Animals, unlike crops, can’t produce food by themselves. They find it by moving in nature in various ways. They occupy particular spaces (habitats) which provide them with the essential living conditions, and they adapt to this distance. There are lots of types of habitats, namely: grasslands, sea, and woods, etc. They differ, for example in air temperature and the quantity of light, and whether the animal can’t adapt to its new habitat, it is going to die.
Plants and animals, despite some differences, are interconnected.