Lemmings are the smallest mammals in the arctic, measuring only about 5 inches. Since they only live in the arctic regions, the lemmings have adapted to their environment in many ways. Some Lemmings lose the full coat in fall and re-grow a white coat to protect them for predators during the winter months. The Collared Lemming actually grows longer nails for winter to be used to help forage for food. Find out more by reading this book.
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