Warm winter coats many mammals have specialized coats to ward off the winter cold. Caribou have hollow hairs that trap warmth close to their bodies. Muskoxen are so well insulated with under fur that they have little trouble with cold, even in the fiercest blizzards. | Heat-efficient body shape Since bodies with long legs, ears, and tails lose warmth faster than those with shorter limbs, many arctic animals, such as arctic fox and arctic hare, have evolved more compact bodies than their southerly…
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