Mother Nature thinks of everything, Michigan’s white-tailed deer are built to endure tough winters February 8, 2014 Michigan

Michigan Deer Population, Management News and Information Archive

... . In the summer, the deer’s reddish-brown coat is made up of dense or solid hair follicles. In the fall, he’ll shed that coat and sprout a thicker, darker one... it’s not thicker because he grows more hair — it’s thicker because each individual follicle of hair is hollow. The air trapped inside of each of the hairs enables him to retain heat... instead of melting, the snow piles up on his back. That’s his coat at work...

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