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An eared seal, otariid, or otary is any member of the marine mammal family Otariidae, one of three groupings of pinnipeds. They comprise 15 extant species in seven genera (another species became extinct in the 1950s) and are commonly known either as sea lions or fur seals , distinct from true seals (phocids) and the walrus ( odobenids ).
This is an accepted version of this page This is the latest accepted revision, reviewed on 7 January 2025. Taxonomic group of semi-aquatic mammals Pinnipeds Temporal range: Latest Oligocene – Holocene, 24–0 Ma Pre๊ ๊ O S D C P T J K Pg N Clockwise from top left: Grey seal (Halichoerus grypus), Steller sea lion (Eumetopias jubatus), New Zealand fur seal (Arctocephalus forsteri), walrus ...
The 34 extant species of Pinnipedia are split into 22 genera within 3 families: Odobenidae, comprising the walrus; Otariidae, the eared seals, split between the sea lions and fur seals; and Phocidae, the earless or true seals.
Sea lions are pinnipeds characterized by external ear flaps, long foreflippers, the ability to walk on all fours, short and thick hair, and a big chest and belly. Together with the fur seals, they make up the family Otariidae, eared seals. The sea lions have six extant and one extinct species (the Japanese sea lion) in five genera.
Southern elephant seals in Argentina Living only in Lake Saimaa, Finland, Saimaa ringed seals, a subspecies of ringed seal, are among the most endangered seals in the world, having a total population of only about 400 individuals. [18] Phocids spend most of their time at sea, although they return to land or pack ice to breed and give birth.
The Galápagos fur seal (Arctocephalus galapagoensis) is one of eight seals in the genus Arctocephalus. It is the smallest of all eared seals. It is endemic to the Galápagos Islands in the eastern Pacific. The total estimated population as of 1970 was said to be about 30,000, although the population has been said to be on the decline since the ...
Otariids, also known as eared seals, differ from true seals in having external ear flaps, and proportionately larger foreflippers and pectoral muscles. Along with the Galapagos sea lion and the extinct Japanese sea lion , the California sea lion belongs to the genus Zalophus , which derives from the Greek words za , meaning "intensive", and ...
Seals may move further inland and rest in sand dunes or vegetation, and may even climb cliffs. [34]: 96 Most cetaceans live in the open ocean, and species like the sperm whale may dive to depths of −1,000 to −2,500 feet (−300 to −760 m) in search of food. [35]