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Caribou on the Move

Photo: A wading herd of barren-ground caribou
Caribou migrate north each summer in one of the greatest wildlife spectacles on Earth. Feeding mostly on grasses and plants in the summer, caribou eat lichen and mushrooms during winter.
Photograph by Todd Buchanan

Multimedia

Caribou Features

Photo: American bison

Historic Journey

Follow in Lewis and Clark's footsteps in this cross-country interactive journey.

Photo: Peninsular bighorn sheep

Wild Crusade

Find out whether California can balance the demands of a growing population with its amazing biodiversity in this feature.

Photo: Polar bear and a whale carcass

Fall of the Wild

Take a virtual journey to Alaska's North Slope in this multimedia feature.

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Dog Whisperer DVDs & Books

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Six Degrees Book and DVD

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Get an eye-opening warning of the dangers of climate change, one degree at a time.