This is the time of year that polar bears emerge from their winter dens. In today"s photo, these adorable cubs are peeking out for the first time in their young lives. Polar bears don"t technically hibernate, but in fall, a pregnant female polar bear will dig a maternity den in the snow (although in some areas it"ll be under the peat soil). While in her small den, the bear enters a dormant state, sleeping nearly all the time, until she gives birth, usually between November and February. Then in spring she"ll dig herself out and emerge with her recently arrived cubs. Polar bear cubs stay with their mother for about two years as they learn to survive in the Arctic.
Anybody out there?
Today in History
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Edinburgh Art Festival
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Great on so many levels
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Grand Teton National Park, Wyoming
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A gorge-ous mill in the Causses
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Lands End, Cornwall, England
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A Carpathian Christmas celebration
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Guilin and Lijiang River National Park, China
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Castle Frankenstein in Darmstadt, Germany
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Cuban tody, Alejandro de Humboldt National Park, Cuba
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Glacial rivers in Iceland
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Surf s up—Down Under
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J.R.R. Tolkien Day
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A path to access
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Oud-West, Amsterdam, Netherlands
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Black History Month
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Capitol Reef National Park, Utah
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Pearl of the Adriatic
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Great Sand Dunes National Park and Preserve
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Southern gemsbok in the savannah, Botswana
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Mooncake time
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Snowy egret preening, central Florida
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Getting to the bottom of the underwater waterfall
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National Hummingbird Day
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Train crossing the Tadami River in Japan
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International Mountain Day
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St. Michaels Mount in Marazion, Cornwall, England
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Feel the spray in Monterey
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From Sputnik to extraterrestrial storms
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It s Teacher Appreciation Week
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Chinese New Year
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