Each fall a quarter-million caribou come together to form the Western Arctic Caribou Herd, a group that makes an epic migration through northwest Alaska. The caribou move south from their calving grounds in the Utukok River Uplands to their winter range on the Seward Peninsula. Fall is also the time when scientists attach radio collars to members of the herd, to track their location and health, and to gain information that will help conserve the species. When spring arrives, the caribou will complete the trip again in reverse, covering a total of 2,000 miles each year, give or take.
Caribou on the move
Today in History
More Desktop Wallpapers:
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‘Stepping’ into Black History Month
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Sunrise at Grand Teton National Park, Wyoming
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Christmas star lanterns, Germany
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Ready for takeoff
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World Penguin Day
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Joshua Tree National Park, California
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Twas a night just like tonight
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The Canary Islands, Spain
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Silver-studded blue butterflies
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Skyscraper Day
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Winter solstice
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Yellowstone for the National Park Services birthday
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New York City skyline
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International Rock Day
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Kalalau Beach on the Nā Pali Coast, Kauai, Hawaii
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It s fair season
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Penguin Awareness Day
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A hidden jewel in Croatia
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Groundhog Day arrives—beyond a shadow of a doubt
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Modica, Sicily, Italy
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International Beaver Day
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Space-age style by the sea
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The call of the wild in Alaska
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At ease, it’s Armed Forces Day
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Are you older than this lake?
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Gwalior Fort, Madhya Pradesh, India
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Hello, harbinger of spring
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European Day of Parks
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Casting a vote for women s history
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Womens History Month
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