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 all the facts you need to know to become a polar bear expert! Where are polar bears found? What's it like to be a polar bear? Why are polar bears endangered, and who has been working hard to save them? Read this book and find out how you can help save the polar bears! 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.