Members of the group known as the Otarid or "eared" seals, Fur seals have a visible earflap. In facial appearance and manner they resemble large dogs. The males can reach 450 pounds and can be up to four times larger than the females. Adult males are silvery-gray with a thick mane and longer hair. Females are gray to brownish with creamy throats and chests. Antarctic Fur seals occur farther south than their slightly smaller relatives, the sub-Antarctic Fur seal (Arctocephalus tropicalis), with which it sometimes hybridizes.