Sea lions are highly social, and happy to live in very close company. Their weight is slightly less than that of Australian sea lions. Galapagos Sea Lion – very large, with the males being about 1,000 pounds when they are full grown. Adult females are significantly smaller and slimmer than males. South American sea lions eat mostly fish, squid, and crustaceans but occasionally kill and eat other seals. They move like the true seals in the water, but like the eared seals on land, and so are somewhere in between these two groups, and are classified in a genus of their own. The Steller sea lion, also known as the Steller's sea lion and northern sea lion, is a near-threatened species of sea lion in the northern Pacific. The five genera of sea lions, together with fur seals (genus Arctocephalus) and northern fur seals (Callorhinus), constitute the family Otariidae (eared seals). All seals and sea lions, along with the walrus, are grouped together as pinnipeds. In addition to the presence of external ears, eared seals have longer flippers than do earless seals. There are 7 species of sea lions, and 9 species of fur seals that make up the "eared seals". Australian Sea Lion – Males are dark brown with a light yellow mane around their heads. Sea Lion Reviews - Perception | Buyers' Guide | Paddling.com Can you tell a seal from a sea lion? Breeding occurs in large herds, the males establishing harems of 3 to 20 females. Physiology dictates thermoregulation, osmoregulation, reproduction, metabolic rate, and many other aspects on sea lion ecology including but not limited to their ability to dive to great depths. Sea lions have long and smooth whiskers or vibrissae. Males measure about 20 feet long (6 meters), while females are about half as long. 30. Articles from Britannica Encyclopedias for elementary and high school students. Baboon facts, photos, videos and information - Baboons are very distinctive looking monkeys with long, dog-like snouts and close set eyes. Actual fighting occurs as well, and injuries can be serious or fatal, but most disagreements are settled by ritualized, sumo-style shoving matches, and games of chicken involving extraordinarily loud full-speed charges at each other. Get a Britannica Premium subscription and gain access to exclusive content. Males can weigh up to 390kg (850lbs) and have a distinctive raised bony bump on their head known as a sagittal crest. Their rear legs are two separate, front-facing flippers that can be rotated under the body and they can rise up and move around with a two beat gate. 64 44 17. Sea lions are very vocal, sometimes even considered as noisy. Also, the fur of eared seals is more apparent, especially in sea lions.…. Apart from size… This ability finds sea lions and fur seals commonly referred to as the "walking seals", while their external ears are why they are also referred to as the "eared seals.". Males are 3 to 4 times as heavy and up to 1.2 times as long as the females. The New Zealand, or Hooker’s, sea lion (Phocarctos hookeri) inhabits only New Zealand. Scientists combined the results of sea lion pup counts in the Channel Islands, aerial surveys of sea lion rookeries, survival rates and other information to reconstruct the growth of the sea lion population from 1975 to 2014. Although sea lions do not make a wide range of sounds, they are very noisy, and easily one of the most vocal mammals on Earth. There are 18 species of true seals, according to Seals World. In preparation for the breeding season, their weight often increases up to 1,000 pounds (454 kilograms). The typical performing seal is most likely a California sea lion, one of the most common and familiar of the seven sea lion species. New Zealand Sea Lion – also known as the Hooker’s Sea Lion, the New Zealand Sea Lion is one of the largest animals found in New Zealand. The sea lion is known as the "angel of the sea" because  their front flippers look like angels  wings while they are swimming and sometimes when they are sleeping. The northern, or Steller, sea lion (Eumetopias jubatus) is a pale- to golden-brown sea lion of the Bering Sea and both sides of the North Pacific Ocean. The walrus, the "true seals" and the "eared seals" or "walking seals". The California sea lion, found along the western coast of North America from the Gulf of Alaska to Costa Rica, is the trained seal commonly seen in animal acts and zoos. The sea lion, an otariid, is plentiful in the Falkland Islands but probably never ventures into the cold Antarctic waters. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. California sea lions commonly gather on man-made structures. In addition to just overall size, mature males over 10 years old are recognized by their impressive, crested foreheads and massive necks. - Sea Lion Facts. sea lions can lift their bodies up off the sand and walk on all fours, The typical performing seal is most likely a California sea lion. The neck and head structure are dazzlingly leonine, but the South American sea lion also has ruff of long hair that makes everything very clear. What do you think of these fabulous animals? The Australian Sea Lion is a sexually dimorphic (two body forms) species, with the adult males up to twice the weight and length of the female. Brown pups are born after a gestation period of 12 months. The entire pregnancy lasts between 8 and 12 months depending on species. Landscape Sunset. Males will develop a territory of only a few dozen feet in any direction and when another male attempts to enter, lots of bluffing, barking, roaring, hissing and growling occurs. They also forage through reefs using their long, stiff whiskers, known as vibrissae, to flush out assorted invertebrates, crabs, and their favorite food, squid. The modern animal is well adapted to an aquatic environment, with its streamlined body and powerful flippers. Leopard seal vs sea lion size. Females will give birth within a few days of arriving at the rookery, and will be ready to mate 10 to 14 days later. 17 Types of Sea Lions - Characteristics - DeepOceanFacts.com Male sea lions gather at specific breeding grounds early in the mating season, and actively attempt to establish their own territories before females arrive. Larger than × px Color . All pinnipeds, even walruses, are considered seals in the broad sense that leopards are considered cats, so it is not incorrect to call a sea lion a seal, just less precise . The pesticide DDT, still in targeted use to prevent malaria in tropical countries, accumulates through the food chain and is found at near-toxic concentrations in sea lion pups. A bony ridge down the centerline of the skull known as a sagittal crest begins to develop at about 9 years of age and, over time, gives the males head a distinct, and impressive look. It swims in coastal waters from northern Peru southward to Tierra del Fuego and even around the Falkland Islands in the South Atlantic. On land they are relatively cumbersome, but, unlike the "true seals", the sea lions can lift their bodies up off the sand and walk on all fours, and even run if necessary. These differences in skeletal structure allow the sea lion and fur seal to not only sit in a semi-upright position, (that classic pose) but also to walk and even run on all-fours. Females are much smaller, but still weigh more than a car at 2,000 lbs. innate need to be in close contact with each other. A fun program designed to let you meet the clown of the sea, the Patagonian Sea Lion. she will be able to find her own pup, in a sea of sea lions. The New Zealand, or Hooker’s, sea lion (Phocarctos hookeri) inhabits only New Zealand. The species is named for the naturalist Georg Wilhelm Steller, who first described them in 1741. The California sea lion shares the genus Zalophus with the Galapagos sea lion (Z. wollebaeki). Corrections? Female California sea lions reach about 1.5 to 2 m (5–6.5 ft.) and 50 to 110 kg (110–240 lbs. Sea lions are 7 species of large marine mammals in the pinniped (seal) family. Around five years of age, there will be a bump on top of the head of males called the sagittal crest. Related Images: seal water animal mammal nature. Omissions? Many females live on barrier islands year round, raising their pups in large daycare groups with multiple mothers keeping an eye out for danger. These sea lions showed little concern for humans desires to utilize the docks, would show aggression when people attempted to move them, and transformed a peaceful dock into a noisy, odorous free for all. Northern sea lions eat fish, octopus, and squid, as well as bivalves, other mollusks, and crustaceans. Galapagos Sea Lions – Galapagos sea lions range in length from 1.5 meters (4.9 feet) to 2.5 meters (8.2 feet), and males are typically larger than females. In fact, the swim-fins scuba divers and backyard snorkelers use were modeled after a sea lions unique, compressed and web-toed hind feet. Grunts, groans and snores abound in a colony of sea lions. Among pinnipeds, it is inferior in size only to the walrus and the two species of elephant seals. The "mane" is most obvious when the fur is dry, and leaves no doubt that the name "sea lion" is deserving. Females are smaller and weigh up to 110kg (220lbs) and have no sagittal crest. 90 96 4. Males are 2.0–2.5 metres in length, females 1.5–2.0 metres. Typemammaldietcarnivoreaverage life span in the wild12 to 15 yearssize10 to 115 ft 3 to 35 mweightup to 840 lbs 380 kg … The largest species of sea lions is … Leave a comment in the box below. It is the largest member of the eared seals. Eared seals differ from true seals in that they have external ears, larger, more powerful forelimbs, and can rotate their hind limbs forward and beneath them. Male California sea lions do have a full, round neck and develop a bony sagittal crest atop the skull cap as they mature that makes for a cool silhouette, but without the mane it doesn't really read "lion", and females of all the species never develop the truly lion-like physical features that ultimately must have inspired the name. - Sea Lion Facts. Males are massive, weighing up to 8,500 lbs. They are as follows: These giant pinnipeds hunt fish, squid, octopus and, rarely, smaller seals. 566 Free images of Sea Lion. The pup has a distinct yelp of its own, and when it hears its mother nearby, begins to call to her desperately. Walrus is also bigger than sea lions. The smallest is the ringed seal, with an average length of 5 feet (1.5 m) and a weight of 110 to 150 lbs. even while they are apparently fast asleep. Size . Weddell seals are thought to number about 1,000,000, the crabeater about 8,000,000, and…, …mammals, such as seals and sea lions, seem to have made only limited alterations in their ear structures. Steller Sea Lion Stellers are the largest of all sea lions and they have an appetite to match. The largest species of sea lion, the Stellar sea lion, also has a noticable mane, and males of this species can reach 2200 pounds and 12 feet in length. Sea lion in Galapagos National Park, Galapagos Islands, Ecuador. Sea lions congregate in gregarious groups called herds or rafts that can reach upwards of 1,500 individuals. The "true seals", such as elephant seals and harp seals, do not have external ear structures and are not capable of walking, but rather must roll or wriggle from place to place when on land. Sea Lions are pinnipeds that have external ear flaps and long fore flippers. it is not incorrect to call a sea lion a seal, just less precise . Males with prime, beach-front properties attract the most mates. Crowding is a sea lion thing, and they would prefer to sleep three bodies deep than move to an unoccupied platform. Also often referred to as the "walking seals",  the eared seals can actually move, even run, quite rapidly when necessary. Ring in the new year with a Britannica Membership, This article was most recently revised and updated by, https://www.britannica.com/animal/sea-lion, San Diego Zoo Animal and Plants - Sea Lion, LiveScience - Facts About Seals & Sea Lions, sea lion - Children's Encyclopedia (Ages 8-11), sea lion - Student Encyclopedia (Ages 11 and up). Sea lions stalk schools of fish which they rush through with jaws agape spearing their quarry with impressively sharp teeth. They are about 6 feet (1.8 meters) long and weigh an average of 220 pounds (100 kilograms). The male stellar sea lion can grow to the size of a compact car weighing over 2000 pounds and measuring over 10 feet long. All sea lion species are carnivores with large canine teeth, or "fangs", and a muzzle full of stiff whiskers, and may also make loud roaring noises which are all lionesque features, but the most shockingly lion-like species is the incredible South American sea lion. unique, compressed and web-toed hind feet. Identification. The sea lions have external ear flaps (pinnae). Sea lions display extreme sexual dimorphism, (marked differences in appearance or size between males and females of the same species), with adult males being at least two times, and as much as four times larger than adult females. The sea lions' bodies control heart rate, gas exchange, digestion rate, and blood flow to allow individuals to dive for a long period of time and prevent side-effects of high pressure at depth. The breeding ground is known as a "rookery" and is usually on a quiet island with sandy beaches. The general size of a sea lion will vary depending on its habitat. Sea lions live in very large social groups called colonies that may come together to sunbathe in masses of hundreds, and take to the beach to mate and raise young in tightly packed gatherings of thousands. When they aren't crowding the San Francisco piers, the California sea lions are crowding the islands for mating season, where their bodies fill the water and the dunes, and their constant barking, roaring and growling can be heard from over 5 miles away. This is a vitally important time in the life of a mature male sea lion, and he actually may not eat for the entire length of the mating season - up to 30 days- while he struggles to maintain control of his territory and the females who have chosen to reside there. Meet them up close, in our interaction pool, where guests are provided with an opportunity to touch, feed, pet and play with these wonderful animals. Fortunately, US Divers provides its customers with a very wide range of size options. Walruses have skeletons designed more like the eared seals, but have no ears. Sea Lions are often a popular attraction at zoos and aquariums, performing tricks such as throwing and catching balls on their noses and clapping. Arguments erupt over possession of prime basking areas, yet they all seem to end up on top of each other. Animal Aquatic Brown. Males with prime, beach-front properties attract the most mates. The rear limbs of true seals are fused together and are permanently facing rearward, making walking impossible. The fur seal and the elephant seal are now regenerating after near extinction. Male California sea lions reach about 2 to 2.5 m (6.5–8 ft.) and 200 to 400 kg (440–880 lbs.). (907.18 kg). The fertilized embryo develops in the womb for only a few weeks and then becomes dormant. 84 115 4. Because sea lions are mammals and must breathe air, they cant stay underwater forever! 133 190 6. The word pinniped means "flipper feet" or "feather feet" and includes three types of semi-aquatic marine mammals. The social structure is loose and very uncomplicated except during breeding season. Sea lion, any of six species of eared seals found primarily in Pacific waters. - Sea Lion Facts, African Animals facts photos and videos..Africa is a wonderland for animal lovers, and a schoolroom for anyone who wants to learn about nature, beauty and the rhythm of life. Weight-wise, they tip the scales between 50 and 250 kilograms (110 and 550 pounds). Steller sea lion or northern sea lion (Eumetopias jubatus) Australian sea lion (Neophoca cinerea) South American sea lion or southern sea ion (Otaria flavescens) New Zealand sea lion (Phocarctos hookeri) California sea lion (Zalophus californianus) References This … Most males migrate back to the mainland where they have been known to takeover private boats, beaches and even the famous pier 39 in San Francisco. Although most of the Galapagos sea lion population is concentrated in the waters surrounding the Galapagos archipelago, some individuals have established a semipermanent colony at Isla de la Plata near the coast of Ecuador. With long, powerful front flippers, their natural position is upright with the chest raised off the ground. Their bodies are long and slender and their heads appear to be almost a little too large for their thin serpent like bodies. Galapagos sea lions are distinguishable by their pointy, whiskered noses and long, narrow muzzles. A sea lions sleek body is perfect for diving deep in the ocean (up to 600 feet, or 180 meters) in search of tasty fish and squid. Sea lions are characterized by a coat of short coarse hair that lacks a distinct undercoat. Many of the sea lion species we commonly see, actually don't bear a very strong resemblance to lions, so where does the name come from? Sea Lion Encounter. Males are about 3.3 metres in length and weigh 1,000 kg, while females measure about 2.5 metres and weigh less than 300 kg. (3,855.5 kilograms). In addition to being able to close the meatus when diving, their pinnas have been greatly reduced or essentially lost, a feature of streamlining for rapid progress through the water.…, … (family Otariidae), which comprise the sea lions and fur seals. the South American sea lion also has ruff of long hair that makes everything very clear. Both sexes of the Australian Sea Lion have stocky bodies, a large head and short narrow flippers. Sea lions are a very sexually dimorphic species, meaning that there are substantial differences in size and appearance between the females and males of the species. Unlike the true, or earless, seals (family Phocidae), sea lions and other eared seals (family Otariidae) are able to rotate their hind flippers forward to use all four limbs when moving about on land. The sea lions entire body is structured for life in the water, with a smooth, torpedo shaped torso and flattened, powerful flippers, like four large swim fins instead of feet. There are many components that make up sea lion physiology and these processes control aspects of their behavior. Sea lions also have longer flippers than true seals. It will not begin to grow again for another 4 months or so, when it will become implanted in the wall of the uterus and start to fully develop. Sea lions are hunted, though not on a large scale, for their meat, hides, and blubber. The largest is the southern elephant seal. Adult males measure an average of 2.6 m long and weigh around 300 kg, while adult females measure an average of 1.8-2 m long and weigh around 150 kg. The male is about 2.5 metres in length and weighs 200–350 kg, and the female is about 1.8 metres long and 140 kg. The maximum recorded dive depth is 274 metres (900 feet). Polar Animals Antarctic. Once an area is established, the male will patrol his patch of beach and also a few yards of ocean in front of it, barking nearly constantly as he goes. The California sea lion is mostly a coastal animal that frequently leaps from the water when swimming. Folks who had docked their boats in the area for decades simple moved out, and the wildlife took over. Eared seals spend a great deal of time on land, breeding and sunning on the shores. Large-eyed and playful, it is pale to dark brown but appears black when wet. It is the sole member of the genus Eumetopias and the largest of the eared seals. True seals also swim differently from eared seals. African Animals - Animal Facts Encyclopedia, Great Apes Facts - Animal Facts Encyclopedia, Sea lions are known as eared or walking seals, A male sea lion is called a bull, a female is called a cow, and a baby is called a pup. Some sea lion colonies are permanent residence throughout their range, while other species are partially migratory. Except for the California sea lion (Zalophus californianus), males have lion-like manes and constantly roar to defend their harems (hence their name). Great apes facts, photos and videos..Human beings did not evolve from chimpanzees, modern chimps and gorillas do not appear in the fossil records until much more recently than homo sapiens.. e-mail us at info@animalfactsencyclopedia.com, Copyright 2011 - 2019 by Jenise Alongi   Animal Facts Encyclopedia.com. When she finally goes back to the sea to hunt and feed, she leaves the pup in a little playgroup of several other pups who will play and sleep together while they wait for their mothers to return. They spend more time in the water than sea lions do and often lead solitary lives in the wild, coming ashore together only once a year to meet and mate. Technically, seals and sea lions are in the same taxonomical suborder of pinnipeds. The female sea lion usually arrives already pregnant from the season prior, and the single pup that she delivers is probably not the offspring of the male whose territory she resides in this season, unless she happened to have hooked up with the same male the prior year. A group of sea lions is called a colony on land, and a raft when in the water. The "true seals" have no external ear flaps, smaller front flippers and rearward facing hind limbs that are fused together into one scalloped flipper. They also have the ability … The Australian sea lion (Neophoca cinerea) is found along the southern coast of Western Australia into South Australia. Now an amazing tourist attraction, the sea lions lounge while onlookers take pictures. Seal Sea Lion Robbe. Sea lions feed principally on fish, crustaceans, and cephalopods (squid and octopus), but they also will consume penguins. But with the help of nostrils that seal up automatically when they dive, a sea lion typically remain submerged for 10 to 20 minutes at a time. On one pier in particular - pier 39- the numbers were uncontrollable. size of the blue sea lion population) that you will need to understand for the conservation of blue sea lions in your region (i.e., how well its doing), or things abo ut its biology that need to be counted , quantified or evaluated in order to manage it properly. But they also have some key anatomical differences. For reasons unknown these creatures returned to the ocean about 20 million years ago, where they have since become the most successful and widely distributed family of carnivores in the world. Much of a males dominance is related to size, with smaller animals almost always giving way to larger ones. They move across land by stretching their upper bodies out and arching their backs to pull themselves forward. When all of the beach is claimed, younger, weaker or smaller males unable to gain a territory, form bachelor groups on the outskirts of the beach, and may continue to be chased about from one mating ground to another by the established males. The Sea Lion Fins are available in two-tone yellow and blue. Population number. the single pup that she delivers is probably not the offspring of the male whose territory she resides in this season, This process is known as embryonic diapause. They will notoriously pack together on beaches, rocks, boardwalks and boats, smushed against one another in huge, languorous piles. The trained seals seen in water parks and circuses are usually California sea lions. Males of this species can reach 9 feet in length, weigh over 800 pounds and have huge, broad heads and necks that can be thicker than their torsos in circumference. Sea lions have thick fur and even thicker layers of blubber to keep them warm in their preferred cold climates, but they exist in all the oceans of the world except for the Atlantic ocean. The southern, or South American, sea lion (Otaria byronia) is generally brown with a yellowish orange belly. The California sea lion, notorious for staking its claim along the entire West coast of North America from Alaska to Mexico, is probably the most well-known of the sea lion species, and is the most likely to appear performing in circuses and water parks. Groans and squeals may occur with the mouth closed, often accompanied by billowing cheeks, but classic barks and roars are delivered with jaws agape, and the noise is nearly constant. The tusk and stiff whiskers mainly differentiate a walrus from a sea lion. The Steller sea lion has attracted considerable attention in recent decades True seals also swim differently from eared seals, getting most of their propulsion from their fused, tail-like rear flippers and undulating motions similar to a dolphin to propel themselves, while the eared seals use their strong front flippers as big, highly effective oars, appearing to fly through the water like birds. True or False: Can You Tell a Seal From a Sea Lion? The male reaches a maximum length of about 2.5 metres (8 feet) and a weight of 400 kg (880 pounds), and the female grows to about 1.8 metres and 90 kg. the most well-known of the sea lion species, and is the most likely to appear performing in circuses and water parks. Our editors will review what you’ve submitted and determine whether to revise the article. Adult males weigh as much as 250 kg (550 pounds), and adult females weigh between 50 and 100 kg (110 and 220 pounds). They gained enough insight into the dynamics of the population to fill in gaps from a few years with little data. All other times a warm body and a friendly "ark, ark, ark" means this is home. When the females arrive weeks later, the males try to attract them to their territory and gather a harem of as many as 15 females. The California sea lion may or may not migrate. The sea lion's ancient ancestors, like those of whales and dolphins, lived on land. At maturity male California sea lions are much larger than females. On the other hand, walrus does not have external ears. Adult males are about 8 feet (2.4 meters) long from nose to tail and weigh an average of 600 pounds (272 kilograms). Lion Fish Aquarium. Female sea lions may fast for up to 16 days when their pup is first born. Sea lions are great swimmers, too, reaching speeds of 18 miles per hour (29 kilometers per hour) for short bursts. In the case of sea lions, the males can be almost four times larger than females when adults. Male sea lions may fast for up to 40 days during mating season. Both species are similar in appearance, the Galapagos sea lion being the smaller of the two. Updates? Although not the largest sea lion (that’s the Steller sea lion), the California sea lion still reaches lengths of 8ft (2.4m) and males typically weigh around 390 kg (850 lb.). Sea lions appear to have an innate need to be in close contact with each other, and to literally be surrounded by their peers. the eared seals can actually move, even run, quite rapidly when necessary. Finally, seals are less social than their sea-lion cousins. The cardiopulmonary system includes the heart and blood vessels, the lymphatic system, nose, nasopharynx, trachea, bronchi and lungs.  These interdependent systems are responsible for picking up and carrying oxygen to the cells of the body and … In extremely large numbers after an earthquake struck California in sea lion size wide range of size options lions can stay forever. 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