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White-tailed deer actually have more hair per square inch in the summer than in the winter! For protection against the cold, each hair on a deer's winter coat is hollow - like a tiny straw, which holds insulating air next to the body. These hairs are therefore more substantial than the thinner summer hair. So a white-tailed deer's in winter is thicker because each hair is thicker, not because there are more hairs. But this collection of fat, hollow hairs certainly help them survive the cold of winter.

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16y ago

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