Muskoxen are built to chill. These animals can endure, even thrive, in some of the harshest conditions on Earth—the Arctic winter. Their long, wiry outer coat covers a soft and thick inner layer, called qiviut, that keeps them toasty even as temperatures plummet. When winter ends, the muskoxen shed this undercoat, which is collected and spun into yarn that"s warmer than sheep"s wool and softer than cashmere—pricier, too.
Going head-to-head with winter
Today in History
More Desktop Wallpapers:
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America s Playground by Derrick Adams
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National Park Week begins
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Wandering Watkins Glen
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World Teachers Day
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The Unfinished Obelisk near Aswan, Egypt
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The moai you know
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Maloja, Switzerland
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Snow aglow in central Japan
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Panda Day
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A river runs through it
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The village of Castelluccio above the Piano Grande, Umbria, Italy
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Cherry blossom season in Tokyo
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Après-ski in the Dolomites
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Cold? What cold?
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Svolvaer, Lofoten Islands, Norway
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Southern right whale
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International Whale Shark Day
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Giving Tuesday
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Gazing upon Portraits of Change
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A day of service for Dr. King
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Bavljenac Island
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Wildebeests in Maasai Mara, Kenya
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World Rivers Day
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Making it work—in Norway
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Incense making, Vietnam
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A big birthday for Big Bend
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Ring of fire solar eclipse
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World Water Day
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A look at Uranus, seventh planet from the sun
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Holey moley–it’s National Doughnut Day!