How can humans be animals?
Humans are animals. Some people don't like to have themselves called animals. But if you look at the larger scheme of things, we can take a look at the two main kinds of living things - plants and animals. Well, humans are certainly not plants, so they fit into the category of animals. And that's why people refer to us as being animals, because we have all the characteristics of a member of the animal kingdom, and very few of the characteristics of a member of the plant kingdom. There are more living things than just plants and animals. There are plants, animals, protists, fungus... these are all large groups of living things. We're in the animal kingdom, and we fit best with mammals. We have hair on our body, we give birth to living young, we nurse our young with milk, and these are all characteristics of mammals.