When George the woodrat's nest is destroyed, Danby the deer mouse takes him into his home in the zoo's garage, but the adjustment is difficult for both.
Text and cartoon illustrations present information about the physical characteristics, environment, social behavior, and diet of over thirty animals found in many zoos.
Doctor Wotsit's tour of his zoo introduces the organization of zoos, the exotic and common species of animals kept there in their natural habitats, and the philosophy behind their preservation in such an environment.