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elephant seal in malayalam

November 28, 2020

[11], When females arrive, the dominating males have already selected their territory on the beach. [11] The beta bull helps the alpha by preventing other males accessing the females. [11] The shape of their body also helps them maneuver well in the water, but limits their movement on land. [11] The new pups will spend up to 10 additional weeks on land learning how to swim and dive.[11]. However, it is not known which language this represents. [8] The generic name Mirounga is a Latinization of miouroung, which is said to have been a term for the seal in an Australian Aboriginal language. [11] The turbinate process, another unique adaptation, is very beneficial when these seals are fasting, breeding, molting, or hauling out. [11][24] When males reach eight to nine years of age, they have developed a pronounced long nose, in addition to a chest shield, which is thickened skin in their chest area. Elephant seals (Mirounga angustirostris) on Piedras Blancas beach, near San Simeon, California, Northern elephant seals during molting season at Piedras Blancas beach, near San Simeon, California, Beachmasters, the dominant bulls fighting at Macquarie Island, Elephant seals at Piedras Blancas, California, "Sea elephant" redirects here. Much more agile in their ocean environment, an elephant seal moves on land with considerable effort, by using its front flippers and belly. [11] The gestation period for females is 11 months, and the pupping seasons lasts from mid to late summer. [11] The vibrissae are connected to blood vessels, nerves, and muscles making them an important sensing tool. After one hour, its carcass was washed ashore near Puthucurichy. [12], Elephant seals spend up to 80% of their lives in the ocean. Their stomachs also often contain gastroliths. [27] More male pups are produced than female pups in years with warmer sea surface temperature in the northeastern Pacific Ocean. [19][20][21] The average depth of their dives is about 300 to 600 m (1,000 to 2,000 ft), typically for around 20 minutes for females and 60 minutes for males, as they search for their favorite foods, which are skates, rays, squid, octopuses, eels, small sharks and large fish. [9], Elephant seals are marine mammals classified under the order Pinnipedia, which, in Latin, means feather- or fin-footed. [12] Southern females tend to have a smaller, blunt nose compared to northern females. On average, the southern elephant seal tends to be larger than the northern species. The northern elephant seal is the second largest seal in the world, after the southern elephant seal. The animal is protected in most countries where it lives. A large marine mammal of the genus Mirounga, which is the largest of the pinnipeds. [13] The bull's proboscis is used in producing extraordinarily loud roaring noises, especially during the mating season. [11] Females tend to dive a bit deeper due to their prey source.[11]. [11] When elephant seals are born, they can weigh up to 36 kilograms (79 pounds) and reach lengths up to 122 cm (4 ft 0 in). Find more Malayalam words at wordhippo.com! [14] This is important during the mating season when the seals do not leave the beach to feed, and must conserve body moisture as there is no incoming source of water. The longest life expectancy of a male northern elephant seal is approximately 14 years. elephant seal translation in English-Malayalam dictionary. The northern elephant seal, somewhat smaller than its southern relative, ranges over the Pacific coast of the U.S., Canada and Mexico. [25] Males reach maturity at five to six years, but generally do not achieve alpha status until the age of eight, with the prime breeding years being between ages 9 and 12. The two species, the northern elephant seal (M. angustirostris) and the southern elephant seal (M. leonina), were both hunted to the brink of extinction by the end of the 19th century, but their numbers have since recovered. [11] When it comes time to molt, they will haul out on land to shed their outer layer, and will not consume any food during this time. [11], Elephant seals take their name from the large proboscis of the adult male (bull), reminiscent of an elephant's trunk, and considered a secondary sexual characteristic. Northern elephant seal bulls reach a length of 4.3 to 4.8 m (14 to 16 ft) and the heaviest weigh about 2,500 kg (5,500 lb). [11] Orcas are also another predator of elephant seals. "The contribution of nasal countercurrent heat exchange to water balance in the northern elephant seal, "Southern Elephant Seals of Sea Lion Island – A Long-term Research Project", "First long-term behavioral records from Cuvier's beaked whales (, "Census of Marine Life – From the Edge of Darkness to the Black Abyss", "Foraging behavior and success of a mesopelagic predator in the northeast Pacific Ocean: insights from a data-rich species, the northern elephant seal", http://www.nationalgeographic.com/animals/mammals/group/elephant-seals/, "Effects of environmental variability and breeding experience on northern elephant seal demography", "North Pacific Climate Mediates Offspring Sex Ratio in Northern Elephant Seals", Tagging of Pacific Predators, Elephant Seals, Teen Spots Hagfish-Slurping Elephant Seal – YouTube, https://en.wikipedia.org/w/index.php?title=Elephant_seal&oldid=991225623, Wikipedia pending changes protected pages, Wikipedia indefinitely move-protected pages, Creative Commons Attribution-ShareAlike License, This page was last edited on 28 November 2020, at 23:33. [2] The elephant seals evolved in the Pacific Ocean during the Pliocene period. Elephant seals are shielded from extreme cold more by their blubber than by fur. [22], Elephant seals are able to slow down their heartbeat (bradycardia) and divert blood flow from the external areas of the body to important core organs. [10] Elephant seals spend the majority of their life (90%) underwater in search of food, and can cover 100 kilometres (60 miles) a day when they head out to sea. [11] In this system, arteries and veins are organized in a way to maintain a constant body temperature by having the cool blood flowing to the heart warmed by blood going to external areas of the animal. [10] In addition, the hind flipper of elephant seals have a lot of surface area, which helps propel them in the water. Females begin breeding at age 3–6 (median=4), and have one pup per breeding attempt. By using our services, you agree to our use of cookies. [28], Once a year, elephant seals go through a process called molting where they shed the outer layer of hair and skin. They have large sinuses in their abdomens to hold blood and can also store oxygen in their muscles with increased myoglobin concentrations in muscle. These adaptations allow elephant seals to dive to such depths and remain underwater for up to two hours. [11] Cookie cutter sharks can take bites from their skin.[11]. [11] They display their dominance by showing their noses, making loud vocalisations, and altering their postures. [11] This unique nasal structure recycles moisture when they breathe and helps prevent water loss. [11], Elephant seals have external whiskers called vibrissae to help them locate prey and navigate their environment. [7], John Edward Gray established the genus Mirounga in 1827. [11] Sexual dimorphism is extreme, with male elephant seals weighing up to 10 times more than females,[12] and having a prominent proboscis. ചില പൗരസ്ത്യദേശങ്ങളിൽ രേഖകളിലും ചിത്രരചനകളിലും വ്യക്തിമുദ്ര പതിപ്പിക്കാനുള്ള, however, in just one week, a factory of eight people making jewelry and hanko (name, popular in Japan) could consume the tusks of 300, എങ്കിലും വൈദ്യുത ഉപകരണങ്ങളുടെ സഹായത്തോടെ എട്ട് ആളുകളുള്ള ഒരു ഫാക്ടറിയിൽ 300, കൊമ്പുകൾ ഉപയോഗിച്ച് ഒരൊറ്റ ആഴ്ചകൊണ്ട് ആഭരണങ്ങളും ഹാങ്കോയും (ജപ്പാനിൽ പ്രചാരത്തിലുള്ള, പേരുകൾ കുത്താനുള്ള. either of two large northern Atlantic earless seals having snouts like trunks. [10][11] These seals also possess a structure called the tapetum lucidum, which helps their vision by having light reflected back to the retina to allow more chances for photoreceptors to detect light. Elephant seals are large, oceangoing earless seals in the genus Mirounga.The two species, the northern elephant seal (M. angustirostris) and the southern elephant seal (M. leonina), were both hunted to the brink of extinction by the end of the 19th century, but their numbers have since recovered.. [10] In addition to these adaptations, tissues in the ear canal allow the pressure in the ear to be adjusted while these seals perform their deep dives. About Elephant Seals Seals on the sand. [11] They can also slow down their metabolism while performing deep dives. [12] Adult male elephant seals belonging to the northern species tend to have a larger proboscis, and thick chest area with a red coloration compared to the southern species. [26] Most adult females breed each year. [11], The main predator of elephant seals is the great white shark. [10] The structure of the inner ear helps amplify incoming sounds, and allows these seals to have good directional hearing due to the isolation of the inner ear. [11][24] They fight each other by raising themselves and ramming each other with their chests and teeth. The skin has to be regrown by blood vessels reaching through the blubber. [15][16], The northern and southern elephant seal can be distinguished by various external features.

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