
American Arctic
The caribou migration is a veritable feast for grizzly bears — if the bears can catch them. Grizzlies hunt all the way to the Arctic Ocean in the summer, but caribou are faster than bears on the open plain.
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The caribou migration is a veritable feast for grizzly bears — if the bears can catch them. Grizzlies hunt all the way to the Arctic Ocean in the summer, but caribou are faster than bears on the open plain.
WATCH CLIP
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When a radio-collared caribou went missing from a study population in Canada last December, researchers assumed it had died or been killed. Then when it showed up again just days after Christmas, new theories of just where the caribou had been started circulating.

Huge herds of caribou play an integral role in shaping Alaska's Arctic landscape.
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