Beginning with a mother polar bear who will soon give birth and showing the development of the young bears until they become independent, this book from the Creatures in White series follows the animals through two years. Each double-page spread features a large, full-color photograph of the bears and their habitat, illustrating two or three paragraphs of text. Lively enough to read aloud to a primary-grade class, the narrative gives a sense of animal life in polar regions, though it focuses on one species. A dozen fast facts are appended. On the last page, a world map indicates where polar bears live. An attractive introduction to the subject.