How does the vicuña's coat function as a thermal regulator in its harsh environment?
Answer
The dense outer coat sheds rain while the crimp of the undercoat traps body heat
The vicuña's fleece is a sophisticated thermal regulator. The dense outer fibers are designed to repel light rain and wind, while the fine, crimped undercoat effectively traps body heat. This dual-layer system is vital for surviving the extreme daily temperature fluctuations of the altiplano, ensuring the animal maintains its core temperature despite the intense cold of the nights.
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