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Amazing Mammals: Part II (Ranger Rick Naturescope)
Amazing Mammals Part II - Ranger Rick Naturescope Author:National Wildlife Federation Mammals are found almost everywhere--on land, at sea, in treetops, and underground--and share many characteristics, such as milk glands, backbones, and hair. This introduction to warm-blooded creatures discusses what makes a mammal a mammal, the history of mammals, and how people, the most dominant mammals, influence the lives of other mammals.