Did you know that a polar bear's fur looks white only because it reflects the light around it, and that its skin is jet-black underneath? How about that a polar bear can swim constantly for days at a time? Or that male polar bears can weigh as much as ten men? Perfect for all animal lovers--and polar bear fans in particular--this book is filled with information that young readers will love to learn. From where polar bear habitats are found to what it's like to be a polar bear to why polar bears are endangered and who has been working hard to save them, this gives readers all the facts they need to know to become polar bear experts. Complete with black-and-white photographs, a list of fun polar bear facts, and things that kids can do right this very moment to help save polar bears from extinction, this book, with an introduction by animal advocate Chelsea Clinton, is a must for every family, school, and community library.