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[13] [14] For comparison, among the northern elephant seal and the sperm whale (Physeter macrocephalus)—two other large marine mammals that are highly sexual dimorphic by size—males typically outweigh females by a factor of three to four. [15] Southern elephant seal size also varies regionally.
Pinnipeds range in size from the 1.1 m (3 ft 7 in) and 50 kg (110 lb) Baikal seal to the 6 m (20 ft) and 3,700 kg (8,200 lb) male southern elephant seal, which is also the largest member of Carnivora. [1]
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 ...
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 oil by the end of the 19th century, but their numbers have since recovered.
The harbor (or harbour) seal (Phoca vitulina), also known as the common seal, is a true seal found along temperate and Arctic marine coastlines of the Northern Hemisphere. The most widely distributed species of pinniped (walruses, eared seals, and true seals), they are found in coastal waters of the northern Atlantic and Pacific oceans, Baltic ...
Depending on subspecies and sex, adult seals can vary in size, measuring from 100 to 175 cm (39.5 to 69 in) and weighing from 30 to 140 kg (70 to 310 lb). The seal averages about 5 ft (1.5 m) long. This species is the smallest species in the true seal family.
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