Splendid color photos--along with a simple, straightforward text--trace the life of two young polar bears from birth during their mother's hibernation through their second year, when they attain independence. Though the photos are so good that they could stand alone, the text adds much interesting information (e.g., that the cubs weigh only a pound at birth but have gained 30 pounds before they emerge from hibernation their first spring). Predators that threaten life cubs (not including men) are shown: for instance, there's a male polar bear that the mother--a third his size--is seen charging at and knocking down. The mother is also seen hunting, and there is a photo of her prey--seals--sunning on the ice: but the capture and meal are not pictured. For variety, composition, and tire sense of sharing the Arctic experience, however, this is a wildlife photography at its best.