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Polar Bears: Masters Of The Snow | Snow Animals | BBC Earth
Polar bear - Wikipedia
Behavior - Polar Bears International
Polar bear | Description, Habitat, & Facts | Britannica
Polar Bear - National Geographic
Adaptations & Characteristics - Polar Bears International
Top 10 facts about polar bears - WWF
Polar Bears: Species Facts, Info & More | WWF.CA
Here’s how polar bears might get traction on snow - Science News
Polar Bears - U.S. National Park Service
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