Dormouse , common name for several species of arboreal rodents widely distributed in Europe, Asia, and Africa. Most dormice are small and have large ears; long, usually bushy tails; and soft, fine fur. They feed at night on nuts and insects. Winter dormancy in severe climates may last six months; during this period, body temperature drops sharply, and respiration is low. The dormouse builds a nest for its young, which usually number four to the litter; usually two litters are produced each year. The small dormouse of Asia and Europe is called the common dormouse in England. Europe's edible dormouse, which grows to a length of nearly 18 cm (nearly 7 in), not including the tail, is so called because it is eaten when fat, just before winter dormancy. African dormice include the desert dormouse, a large gray dormouse with a tufted tail. Other rodents called dormice include India's spiny dormouse, named for its spiny coat, and the Chinese pygmy dormouse, which has a feathery tail .