HOMEPAGE IMAGES - PeterMather
Ice cave near Kluane National Park.
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Porcupine Caribou caught by a camera trap during their winter migration in Northern, Yukon, Canada. Bull Caribou in the boreal forest. 

The caribou calving grounds in Alaska's ANWR are threatened by potential oil and gas development.

Porcupine Caribou caught by a camera trap during their winter migration in Northern, Yukon, Canada. Bull Caribou in the boreal forest.

The caribou calving grounds in Alaska's ANWR are threatened by potential oil and gas development.

Porcupine Caribou Herd Winter Camera Trap bull antlers boreal forest snow ANWR oil gas development yukon Alaska Canada Prudhoe Bay