'Untamed Americas': 24 of America’s Wildest Creatures
Click through this slideshow to explore the wildlife of our mountains, coasts, deserts, and forests. The two-night "Untamed Americas" miniseries event starts Sunday, 6/10 at 9 PM and concludes Monday, 6/11 at 9 PM on the National Geographic Channel.
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Caribou (Rangifer tarandus)
Arctic Tundra, North America
Within hours of birth, a caribou calf can run to keep up with its migrating herd. Caribou journey more than 600 miles each year along the same path in search of rich feeding grounds.