Thursday, September 12, 2013

What Keeps A Yak Warm?

 A wild yak's hair helps it keep warm in colder climates.

  
Picture from Springbrook

A yak is insulated by it's dense, close, matted under-hair, along with their shaggy outer hair.  They also secrete a special sticky substance from their sweat glands which helps keep their under-hair matted, acting as extra insulation.



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