Experience Arctic chills and warm hugs in this nonfiction picture book about a loving polar bear family from acclaimed author-illustrator Jeanette Winter. At the top of the world, Nanuk the ice bear hunts for food, meets a mate, and hibernates through the winter with her newborn cubs. When spring arrives, Nanuk teaches her beloved cubs how to hunt and swim and survive in the arctic. This new picture book by acclaimed author-illustrator Jeanette Winter is a stunning portrait of a loving polar bear family with a subtle environmental message and an author's note full of polar bear facts.