Find out how these polar predators rule the arctic get under their skin for a closer look at what keeps polar bears warm. At the top of the food chain polar bears have an important role in the marine environment learn how wwf is fighting the biggest threat to polar bears survival loss of sea ice. Amazoncom polar bear polar bear what do you hear brown bear and friends 9780805053883 bill martin jr eric carle books. Learn about the size diet population range behavior and other fascinating facts about polar bears
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