Walruses are mambers of the order Carnivora and (or alternatively superfamily) Pinnipedia. They are the only members in the family Odobenidae. The compound Odobenus comes from odous (Greek for “tooth”) and baino (Greek for “walk”), based on observations of walruses using their tusks to pull themselves out of the water. Rosmarus originates in the Swedish word for walrus. The true seal suborder or earless seals are one of the three main groups of mammals within the seal suborder, Pinnipedia. All true seals are members of the family Phocidae. They are sometimes called crawling seals, to distinguish them from the fur seals and sea lions of the family Otariidae.