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 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. 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. The largest is the southern elephant seal. There are 18 species of true seals, according to Seals World. They also forage through reefs using their long, stiff whiskers, known as vibrissae, to flush out assorted invertebrates, crabs, and their favorite food, squid. 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 . Identification. Many females live on barrier islands year round, raising their pups in large daycare groups with multiple mothers keeping an eye out for danger. They will notoriously pack together on beaches, rocks, boardwalks and boats, smushed against one another in huge, languorous piles. Unlike the sea lion, walrus relies more on the body for swimming like that of the true seals. This process is known as embryonic diapause and is fairly common in many large mammals. With long, powerful front flippers, their natural position is upright with the chest raised off the ground. 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. The sea lion's ancient ancestors, like those of whales and dolphins, lived on land. Brown pups are born after a gestation period of 12 months. On one pier in particular - pier 39- the numbers were uncontrollable. 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. (3,855.5 kilograms). The rear limbs of true seals are fused together and are permanently facing rearward, making walking impossible. All seals and sea lions, along with the walrus, are grouped together as pinnipeds. The five genera of sea lions, together with fur seals (genus Arctocephalus) and northern fur seals (Callorhinus), constitute the family Otariidae (eared seals). Anyone who has observed large groups of sea lions sunning themselves on beaches or piers, knows that not only is there a continual racket while the animals move about to find good resting spots, but even while they are apparently fast asleep. Males are 2.0–2.5 metres in length, females 1.5–2.0 metres. 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. Males are 3 to 4 times as heavy and up to 1.2 times as long as the females. Females will give birth within a few days of arriving at the rookery, and will be ready to mate 10 to 14 days later. There are 7 species of sea lions, and 9 species of fur seals that make up the "eared seals". 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. 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. 84 115 4. 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. What do you think of these fabulous animals? Females are much smaller, but still weigh more than a car at 2,000 lbs. 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. (907.18 kg). Weight-wise, they tip the scales between 50 and 250 kilograms (110 and 550 pounds). 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. 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. In captivity it can live more than 30 years (less in the wild). Females only a third the size of males: The California Sea Lion (Zalophus californianus) is a coastal sea lion of the northern Pacific Ocean. Sea lions also have longer flippers than true seals. Much of a males dominance is related to size, with smaller animals almost always giving way to larger ones. 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. 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. 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 … But they also have some key anatomical differences. These giant pinnipeds hunt fish, squid, octopus and, rarely, smaller seals. 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.). 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. ). Northern sea lions eat fish, octopus, and squid, as well as bivalves, other mollusks, and crustaceans. even while they are apparently fast asleep. Adult males are 2.0–2.5 metres in length and weigh 300 kg, whereas females measure 1.5 metres long and weigh less than 100 kg. 133 190 6. Because sea lions are mammals and must breathe air, they cant stay underwater forever! California sea lions are light to chocolate brown in color and exhibit marked sexual dimorphism. Baboon facts, photos, videos and information - Baboons are very distinctive looking monkeys with long, dog-like snouts and close set eyes. Polar Animals Antarctic. Males measure about 20 feet long (6 meters), while females are about half as long. their constant barking, roaring and growling can be heard from over 5 miles away. Mother and pup may stay together for up to two years before the youngster heads out on its own. Typemammaldietcarnivoreaverage life span in the wild12 to 15 yearssize10 to 115 ft 3 to 35 mweightup to 840 lbs 380 kg … the South American sea lion also has ruff of long hair that makes everything very clear. Sea lions are 7 species of large marine mammals in the pinniped (seal) family. 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. Leopard seal vs sea lion size. The maximum recorded dive depth is 274 metres (900 feet). Species of sea lions and fur seals can be found on the Bering strait, Australia and New Zealand, South America and California. In preparation for the breeding season, their weight often increases up to 1,000 pounds (454 kilograms). Leave a comment in the box below. Male sea lions may fast for up to 40 days during mating season. Adult males are about 8 feet (2.4 meters) long from nose to tail and weigh an average of 600 pounds (272 kilograms). They are about 6 feet (1.8 meters) long and weigh an average of 220 pounds (100 kilograms). In the water, sea lions shine with balletic grace, spending the majority of their time hunting in reefs and ocean waters where they can dive as deep as 900 feet and remain submerged for over half an hour. Some sea lions can stay underwater for over half an hour without taking a breath. It is the largest member of the 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. Males with prime, beach-front properties attract the most mates. 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. 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. Apart from size… Description & Behavior. Omissions? 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. Galapagos Sea Lion – very large, with the males being about 1,000 pounds when they are full grown. 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 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. 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. 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 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. This helps them escape from their enemies, kill… The trained seals seen in water parks and circuses are usually California sea lions. Sea lion in Galapagos National Park, Galapagos Islands, Ecuador. 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. Legend has it that California sea lions began to appear in extremely large numbers after an earthquake struck California in 1989. Steller Sea Lion Stellers are the largest of all sea lions and they have an appetite to match. 566 Free images of Sea Lion. A fast swimmer and excellent diver, it forages underwater for an average of three minutes at a time, but dives can last up to nine minutes. 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 often a popular attraction at zoos and aquariums, performing tricks such as throwing and catching balls on their noses and clapping. The sea lion, an otariid, is plentiful in the Falkland Islands but probably never ventures into the cold Antarctic waters. the most well-known of the sea lion species, and is the most likely to appear performing in circuses and water parks. The tusk and stiff whiskers mainly differentiate a walrus from a sea lion. 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. Except for the California sea lion (Zalophus californianus), males have lion-like manes and constantly roar to defend their harems (hence their name). Sea lions are great swimmers, too, reaching speeds of 18 miles per hour (29 kilometers per hour) for short bursts. 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. The breeding ground is known as a "rookery" and is usually on a quiet island with sandy beaches. Males with prime, beach-front properties attract the most mates. Among pinnipeds, it is inferior in size only to the walrus and the two species of elephant seals. They are as follows: 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? In addition to just overall size, mature males over 10 years old are recognized by their impressive, crested foreheads and massive necks. The Australian sea lion (Neophoca cinerea) is found along the southern coast of Western Australia into South Australia. Seal Sea Lion Robbe. All other times a warm body and a friendly "ark, ark, ark" means this is home. Folks who had docked their boats in the area for decades simple moved out, and the wildlife took over. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. 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. The California sea lion shares the genus Zalophus with the Galapagos sea lion (Z. wollebaeki). 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. colony of sea lions resting in oregon coast sea lion caves, oregon, usa - sea lion stock pictures, royalty-free photos & images Stranded adult sea lion is seen in the sand in … True or False: Can You Tell a Seal From a Sea Lion? 73 48 35. 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. Walruses have skeletons designed more like the eared seals, but have no ears. Males can weigh up to 390kg (850lbs) and have a distinctive raised bony bump on their head known as a sagittal crest. Walrus is also bigger than sea lions. Because of their massive size and aggressive nature, they are rarely kept in captivity. A fun program designed to let you meet the clown of the sea, the Patagonian Sea Lion. - 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. Males are massive, weighing up to 8,500 lbs. The sea lions have external ear flaps (pinnae). Some sea lion colonies are permanent residence throughout their range, while other species are partially migratory. Around five years of age, there will be a bump on top of the head of males called the sagittal crest. The sea lions ancient ancestors were land animals somewhat similar to bears. 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. The California sea lion is mostly a coastal animal that frequently leaps from the water when swimming. Larger than × px Color . Related Images: seal water animal mammal nature. Male sea lions gather at specific breeding grounds early in the mating season, and actively attempt to establish their own territories before females arrive. 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 typical performing seal is most likely a California sea lion, one of the most common and familiar of the seven sea lion species. The fur seal and the elephant seal are now regenerating after near extinction. Fortunately, US Divers provides its customers with a very wide range of size options. 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. 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