The harp seal has a black face with silvery-gray body. Its eyes are pure black. It has black harp or wishbone-shaped markings on the back. They show little sexual dimorphism. This means there is little difference between the males and females. The baby harp seal (pup) has a yellow-white coat at birth. After three days, the coat turns white and stays white for about 12 days. Adult harp seals grow up to be 1.7 to 2.0 m (5 to 6 feet) long and weigh from 140 to 190 kg (300 to 400 pounds).