The larger mammals of North America are known mostly to a few big game hunters, while the ordinary public observes them only in captivity or tamed. Very few students of ecology have ever lived with these animals in their native habitat—even fewer have written about them from an ecological viewpoint. In this respect, Adolph Murie is almost unique. This book concerns the domestic ways of the wildlife in Alaska, the grizzly bear, the wolf, the lynx, the wolverine, the Dall sheep, the caribou, and the Arctic fox. But even more fascinating than the life cycles of these creatures are their interrelationships—prey and predator maintaining a delicate balance in one of the few remaining wildernesses of this continent.