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December 2, 2016

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The dogs of Iditarod musher Allen Moore, from Two Rivers, Alaska,  howl as they prepare to leave the Takotna checkpoint during the Iditarod Trail Sled Dog Race on Thursday, March 6, 2014.

The Anchorage Daily News, Bob Hallinen / AP

The dogs of Iditarod musher Allen Moore, from Two Rivers, Alaska, howl as they prepare to leave the Takotna checkpoint during the Iditarod Trail Sled Dog Race on Thursday, March 6, 2014.