What two layers comprise the yak's thick, shaggy insulating coat?
Answer
A dense, woolly undercoat layered beneath a longer, coarse outer layer
The yak's survival in the harsh, cold conditions of its native habitat is heavily dependent on its distinctive dual-layer coat system. This insulation is structured with an inner layer composed of dense, woolly material, which is designed to trap air close to the body to maintain core temperature effectively. On top of this undercoat lies a longer, coarser outer layer of hair. This combination provides superior thermal regulation, essential for surviving sub-zero temperatures and biting winds characteristic of the Tibetan Plateau and surrounding mountain ranges.
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