From feast to fast Polar bears, unlike their land-based cousins, are finicky. Brown bears may slurp up fatty salmon, but also eat berries and insects. Polar bears need lots of fat to survive, and may ...
ON HUDSON BAY — Searching for polar bears where the Churchill River dumps into Canada's massive Hudson Bay, biologist Geoff York scans a region that's on a low fat, low ice diet because of climate ...
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