Lessons from the Iditarod: How Sled Dogs Run 1,100 Miles Through the Harshest Conditions

Racing sled dogs are best known for their "mushing" each March during the Iditarod Trail Sled Dog Race, the world's longest sled race. They are the premier ultra-endurance competitors, covering 1,100 miles from Anchorage to Nome, AK, sometimes in just nine days. It is unclear how they can keep running despite heavy blizzards, temperatures as low as -40 deg.F, and winds up to 60 mph. An expert explains what he has discovered thus far.

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