/ Modified jul 14, 2017 1:36 p.m.

Nature's Great Race: Caribou

Join 100,000 caribou on the world’s longest land migration: 3,000 miles through Arctic wilderness.

Nature's Great Race caribou herd hero Thousands of Porcupine Herd caribou during the annual aggregation event in the Arctic National Wildlife Refuge, Alaska
Courtesy of Max Hug Williams

Join 100,000 caribou who face hungry bears and wolves, deadly frozen rivers and rugged mountains as they undertake the world’s longest land migration: 3,000 miles through the frozen Arctic wilderness of Canada and Alaska.

Nature's Great Race: Caribou airs Wednesday, July 19 at 9 p.m. on PBS 6.

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