There are many animal illustrations. Because there are so many categories, it is basically impossible for you to find a comprehensive picture. You can only classify it as mammals, reptiles, amphibians and invertebrates. You can find all kinds of pictures on the Internet, such as China Insect Ecology Picture Book, Mammals and so on. Most of the animals on the market in China are introduced to China.
It is difficult to find a comprehensive book about all the animals and plants in the world, so we can only go to the National Library to look up an encyclopedia or something.