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Life Up North Wild polar bears are found only in the Arctic. The Arctic is the region around Earth's North Pole, which sits in the middle of the Arctic Ocean. It covers an area almost equal in size to North America.

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Anybody Home? A polar bear paws on the window, curiously looking into a photographer's truck in Alaska's Arctic National Wildlife Refuge. This bear may look harmless, but it is actually Earth's largest land predator.

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Uncertain Future This mother and cub rest on an iceberg in the Arctic Ocean. Polar bears depend on ice as their home and as their hunting ground. As Earth warms and the ice melts, the bears face an uncertain future.

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