Mammal Societies:

I own a book, written by Tim Clutton-Brock, with the title "Mammal Societies". I was always fascinated by groups of animals. In childhood I did not like to look at a single animal, but I enjoyed looking at groups of animals. I truly can't stop looking at pictures from swarms, colonies, herds; groups of mammals, insect colonies, or groups of birds.

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I will add the first sentence from the first chapter of Mammal Societies here:

"Life is full of dangers, competition for resources and reproductive opportunities is universal and all life forms need to be well adapted to the physical and social environments they occupy ..."