The Columbia Encyclopedia, Sixth Edition. Columbia Encyclopedia World Factbook American Heritage Coll.
Marmots inhabit plains or open country in mountainous regions.
They hibernate during the winter and mate immediately thereafter. Active during the day, they feed chiefly on grasses and other green plants. Marmots have stout bodies, rounded ears, and powerful digging claws. They can sit upright. They vary in length from 15 to 25 in.