Zoos serve many purposes. And this essay is going to be about the 2 things that zoos serve. The first thing is that they give enetertainment to human beings. We can observe what the animal does and have fun. But I am pretty sure that the animals will not like it. The second thing is that it gives sanctuary to endangered animals. If endangered animals are kept in the wild, they might not be safe. So human keep them in the zoo and give them sanctuary. And the endangered species will be let go if there are enough of them. These were the 2 things that th zoo serve.

Thank you for this Daniel!