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Mirounga
Elephant seals or sea elephants are very large, oceangoing earless seals in the genus ''Mirounga''. Both species, the northern elephant seal (''M. angustirostris'') and the southern elephant seal (''M. leonina''), were hunted to the brink of extinction for lamp oil by the end of the 19th century, but their numbers have since recovered. They can weigh up to . Despite their name, elephant seals are not closely related to elephants, and the large proboscis or trunk that males of the species possess is an example of convergent evolution. The northern elephant seal, somewhat smaller than its southern relative, ranges over the Pacific coast of the U.S., Canada and Mexico. The most northerly breeding location on the Pacific Coast is at Race Rocks Marine Protected Area, at the southern tip of Vancouver Island in the Strait of Juan de Fuca. The southern elephant seal is found in the Southern Hemisphere on islands such as South Georgia and Macquarie Island, and on the coasts of New Z ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Elephant Seal
The southern elephant seal (''Mirounga leonina'') is one of two species of elephant seals. It is the largest member of the clade Pinnipedia and the order Carnivora, as well as the largest extant marine mammal that is not a cetacean. It gets its name from its massive size and the large proboscis of the adult male, which is used to produce very loud roars, especially during the breeding season. A bull southern elephant seal is about 40% heavier than a male northern elephant seal (''Mirounga angustirostris''), which is nearly twice the weight of a male walrus (''Odobenus rosmarus''), or 6–7 times heavier than the largest living mostly terrestrial carnivorans, the Kodiak bear and the polar bear. Taxonomy The southern elephant seal was one of the many species originally described by Swedish zoologist Carl Linnaeus in the landmark 1758 10th edition of his ''Systema Naturae'', where it was given the binomial name of ''Phoca leonina''. John Edward Gray established the genus ''Mirou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mirounga Leonina
The southern elephant seal (''Mirounga leonina'') is one of two species of elephant seals. It is the largest member of the clade Pinnipedia and the order Carnivora, as well as the largest extant marine mammal that is not a cetacean. It gets its name from its massive size and the large proboscis of the adult male, which is used to produce very loud roars, especially during the breeding season. A bull southern elephant seal is about 40% heavier than a male northern elephant seal (''Mirounga angustirostris''), which is nearly twice the weight of a male walrus (''Odobenus rosmarus''), or 6–7 times heavier than the largest living mostly terrestrial carnivorans, the Kodiak bear and the polar bear. Taxonomy The southern elephant seal was one of the many species originally described by Swedish zoologist Carl Linnaeus in the landmark 1758 10th edition of his ''Systema Naturae'', where it was given the binomial name of ''Phoca leonina''. John Edward Gray established the genus ''Mirounga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Elephant Seal
The northern elephant seal (''Mirounga angustirostris'') is one of two species of elephant seal (the other is the southern elephant seal). It is a member of the family Phocidae (true seals). Elephant seals derive their name from their great size and from the male's large proboscis, which is used in making extraordinarily loud roaring noises, especially during the mating competition. Sexual dimorphism in size is great. Correspondingly, the mating system is highly polygynous; a successful male is able to impregnate up to 50 females in one season. Description The huge male northern elephant seal typically weighs and measures , although some males can weigh up to . Females are much smaller and can range from in weight, or roughly a third of the male's bulk, and measure from . The bull southern elephant seals are, on average, larger than those in the northern species, but the females in both are around the same size, indicating the even higher level of sexual dimorphism in the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earless Seal
The earless seals, phocids, or true seals are one of the three main groups of mammals within the seal lineage, 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 Eared seal, Otariidae. Seals live in the oceans of both hemispheres and, with the exception of the more tropical monk seals, are mostly confined to Polar region, polar, subpolar, and temperate climates. The Baikal seal is the only species of exclusively freshwater seal. Taxonomy and evolution Evolution The earliest known fossil earless seal is ''Noriphoca gaudini'' from the late Oligocene or earliest Miocene (Aquitanian (stage), Aquitanian) of Italy. Other early fossil phocids date from the mid-Miocene, 15 million years ago in the north Atlantic. Until recently, many researchers believed that phocids evolved separately from otariids and Walrus, odobenids; and that they evolved from otter-like ani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Race Rocks Marine Protected Area
Race Rocks Ecological Reserve is a BC Parks ecological reserve off the southern tip of Vancouver Island in the Strait of Juan de Fuca in Metchosin, British Columbia, Canada. Description Located at a narrow part of the Strait, the area covers of ocean, rocks, and reefs, but does not include the small envelope of land with the foghorn and the historic Race Rocks Lighthouse itself. That area is leased by the Canadian Coast Guard. Because of the location in a high tidal current area, there is an exceptional variety of marine life to be found, including marine mammals, sea birds, fish, marine invertebrates, and marine algae and sea grass. It is a haul out area for the California sea lion (''Zalophus californianus'') and Northern/Steller sea lion (''Eumetopias jubatus'') and a birthing rookery for harbour seals (''Phoca vitulina'') and it is also the most northerly birthing colony on the Pacific Coast of North America for the elephant seal (''Mirounga angustirostris''). Histo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine Mammals
Marine mammals are mammals that rely on marine ecosystems for their existence. They include animals such as cetaceans, pinnipeds, sirenians, sea otters and polar bears. They are an informal group, unified only by their reliance on marine environments for feeding and survival. Marine mammal adaptation to an aquatic lifestyle varies considerably between species. Both cetaceans and sirenians are fully aquatic and therefore are obligate water dwellers. Pinnipeds are semiaquatic; they spend the majority of their time in the water but need to return to land for important activities such as mating, breeding and molting. Sea otters tend to live in kelp forests and estuaries. In contrast, the polar bear is mostly terrestrial and only go into the water on occasions of necessity, and are thus much less adapted to aquatic living. The diets of marine mammals vary considerably as well; some eat zooplankton, others eat fish, squid, shellfish, or seagrass, and a few eat other mammals. Wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian Aboriginal Languages
The Indigenous languages of Australia number in the hundreds, the precise number being quite uncertain, although there is a range of estimates from a minimum of around 250 (using the technical definition of 'language' as non-mutually intelligible varieties) up to possibly 363. The Indigenous languages of Australia comprise numerous language family, language families and language isolate, isolates, perhaps as many as 13, spoken by the Aboriginal Australians, Indigenous peoples of mainland Australia and a few nearby islands. The relationships between the language families are not clear at present although there are proposals to link some into larger groupings. Despite this uncertainty, the Indigenous Australian languages are collectively covered by the technical term "Australian languages", or the "Australian family". The term can include both Tasmanian languages and the Kalaw Lagaw Ya, Western Torres Strait language, but the Genetic relationship (linguistics), genetic relations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neo-Latin
Neo-LatinSidwell, Keith ''Classical Latin-Medieval Latin-Neo Latin'' in ; others, throughout. (also known as New Latin and Modern Latin) is the style of written Latin used in original literary, scholarly, and scientific works, first in Italy during the Italian Renaissance of the fourteenth and fifteenth centuries, and then across northern Europe after about 1500, as a key feature of the humanist movement. Through comparison with Classical Latin, Latin of the Classical period, scholars from Petrarch onwards promoted a standard of Latin closer to that of the ancient Romans, especially in grammar, style, and spelling. The term ''Neo-Latin'' was however coined much later, probably in Germany in the late eighteenth century, as ''Neulatein'', spreading to French and other languages in the nineteenth century. Medieval Latin had diverged quite substantially from the classical standard and saw notable regional variation and influence from vernacular languages. Neo-Latin attempts to retur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Admiralty Sound (Tierra Del Fuego)
Almirantazgo Fjord (), also known as Almirantazgo Sound () or Admiralty Sound, is a Chilean fjord located in the far south of the country at .Earth Info, ''earth-info.nga.mil'' webpage: . The fjord cuts deeply into the west coast of the Isla Grande de Tierra del Fuego, extending southeastwards from the Whiteside Channel, which separates Isla Grande from Dawson Island. On its south side several smaller fjords and bays make significant indentations into the north coastline of the Cordillera Darwin. One of these, Ainsworth Bay, is home to a colony of elephant seals. See also * Marinelli Creek Marinelli Creek is a watercourse whose headwaters emerge from the melting of Marinelli Glacier in Tierra del Fuego, Chile. Marinelli Creek discharges to Ainsworth Bay, a notable inlet along the Almirantazgo Fjord. The Marinelli Glacier has been i ... References Fjords of Chile Bodies of water of Magallanes Region Isla Grande de Tierra del Fuego {{MagellanAntarctic-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brigitte Senut
Brigitte Senut (27 January 1954, Paris) is a French Primatology, paleoprimatologist and Paleoanthropology, paleoanthropologist and a professor at the National Museum of Natural History, France, National Museum of Natural History, Paris. She is a specialist in the evolution of great apes and humans. Life and work Senut is a naturalist and geologist by training and began studying human paleontology and paleoprimatology at a young age. She earned her master's degree in geology at the Pierre and Marie Curie University, Pierre-et-Marie-Curie University of Paris in 1975, and specialized in vertebrate and human paleontology, obtaining a doctorate (DEA) in 1976 and defended her doctoral dissertation in 1978. She was interested in the function-phylogeny link in her thesis entitled ''Contribution à l'étude de l'humérus et de ses articulations chez les Hominidés du Plio-Pléistocène'' (''Contribution to the study of the humerus and its joints in Plio-Pleistocene Hominids''). In 1987, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martin Pickford
Martin Pickford (born 1943) is a lecturer in the Chair of Paleoanthropology and Prehistory at the Collège de France"First hominid from the Miocene (Lukeino Formation, Kenya)" Senut, B., Pickford, M., Gommery, D., Mein, P., Cheboi, K., & Coppens, Y. (January 20, 2001). ''Comptes Rendus Académie des Sciences Paris, Série IIA Sciences de la Terre et des Planètes'', 332, 137–144. (Accessed Aug 2012) and honourary affiliate at the Département Histoire de la Terre in the Muséum national d'Histoire [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
