Bookstore Compilation Center of English Children 
Secret of Animal Family. The Secret of Group Animals [EPUB ebook] 

The Secret of Group Animals edited by Bookstore Compilation Center of English Children collects group animals in the animal world. The cruel nature has always adhered to the law of survival of the fittest, and some groups of animals have therefore chosen to live in groups. They forage, defend against foreign enemies, and produce offspring together. They help each other like a "family". The animals in the book are not classified like conventional encyclopedias, and it brings children to know all kinds of interesting animals and re-categorizes and combines them for description.