The dental formula for eared seals is: 3.1.4.1-32.1.4.1. While considered social animals, no permanent hierarchies or statuses are established on the colonies. Thus, the northern fur seal and the South American sea lion tend to herd specific harem-associated females, occasionally injuring them, while the Steller sea lion and the New Zealand sea lion control spatial territories, but do not generally interfere with the movement of the females. Caniformia stands in contrast to the other suborder of Carnivora, Feliformia, the center of diversification of which was in Africa and southern Asia. All otariids breed on land during well-defined breeding seasons. Fur seals are any of nine species of pinnipeds belonging to the subfamily Arctocephalinae in the family Otariidae. This split is however not yet official. The species is named for the naturalist Georg Wilhelm Steller, who first described them in 1741. The words 'otariid' and 'otary' come from the Greek otarion meaning "little ear", referring to the small but visible external ear flaps (pinnae), which distinguishes them from the phocids. In addition to the presence of external ears, eared seals have longer flippers than do earless seals. © 2013-2020 Reverso Technologies Inc. All rights reserved. [9]. Furthermore, all species have 34 chromosomes. The walrus is the only living species in the family Odobenidae and genus Odobenus. Seals live in the oceans of both hemispheres and, with the exception of the more tropical monk seals, are … Their swimming power derives from the use of flippers more so than the sinuous whole-body movements typical of phocids and walruses. Temps écoulé: 738 ms. Mots fréquents: 1-300, 301-600, 601-900, Plus, Expressions courtes fréquentes: 1-400, 401-800, 801-1200, Plus, Expressions longues fréquentes: 1-400, 401-800, 801-1200, Plus. Some content of the original page may have been edited to make it more suitable for younger readers, unless otherwise noted. Le Lion de Mer Le lion de mer septentrional, Trites Date Published June 6, 2007 Last Edited March 4, 2015 The northern sea lion, also called the Steller sea lion (Eumetopias jubatus), is the largest of the, Trites Date de publication juin 6, 2007 Dernière modification mars 4, 2015 Le lion de mer septentrional, appelé aussi otarie de Steller (Eumetopias jubatus), est le plus gros des, Management Plan for the Steller Sea Lion (Eumetopias jubatus) in Canada (2011-01-25) The Steller Sea Lion is the largest member of, Plan de gestion de l'otarie de Steller (Eumetopias jubatus) au Canada (2011-01-25) L'otarie de Steller, le plus grand représentant des. Pinnipeds belong to the order Carnivora and their closest living relatives are bears and the superfamily of musteloids, having diverged about 50 million years ago. Répartition et habitat Au Canada, les otaries vivent exclusivement dans l'océan Pacifique. Male otariids range in size from the 70-kg (150-lb) Galápagos fur seal, smallest of all pinnipeds, to the over 1,000-kg (2,200-lb) Steller sea lion. Otariids have proportionately much larger foreflippers and pectoral muscles than phocids, and have the ability to turn their hind limbs forward and walk on all fours, making them far more maneuverable on land. It belonged to the family Odobenidae, the only extant species of which is the walrus. …seals (family Phocidae); and the eared seals (family Otariidae), which comprise the sea lions and fur seals. By using this site, you agree to the Terms of Use Privacy Policy. This page was last modified on 8 October 2020, at 22:20. 2nd ed. There are three tribes recognized here: Monachini, Miroungini, and Lobodontini. The extent to which males control females or territories varies between species. [7] [8] Nonetheless, because of morphological and behavioral similarities among the "fur seals" and "sea lions", these remain useful categories when discussing differences between groups of species. The earless seals, phocids or true seals are one of the three main groups of mammals within the seal lineage, Pinnipedia. By continuing you agree to the use of cookies. They have an average lifespan of 20–30 years. While today represented by eight extant and one recently extinct species, Monachinae had an incredibly enriched fossil diversity that went into decline soon to be replaced by southern species of sea lions and fur seals. The difference between members of this group and members of Phocinae is in monachines the hindclaws are greatly reduced in size. The Family Otariidae contains 13 species still living (it also contains the Japanese sea lion, a species that is now extinct).
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