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. 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.). But they also have some key anatomical differences. 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. On one pier in particular - pier 39- the numbers were uncontrollable. 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 . Female sea lions may fast for up to 16 days when their pup is first born. Males measure about 20 feet long (6 meters), while females are about half as long. 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. Sea Lion Size: Male sea lions are really huge and weight between 1,500 lbs to 1 ton with almost 11 feet long in length whereas female sea lions are smaller with a weight around 700 lbs and 9 feet long in length. The Steller sea lion has attracted considerable attention in recent decades It is the largest member of the eared seals. The social structure is loose and very uncomplicated except during breeding season. 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. It swims in coastal waters from northern Peru southward to Tierra del Fuego and even around the Falkland Islands in the South Atlantic. In fact, the swim-fins scuba divers and backyard snorkelers use were modeled after a sea lions unique, compressed and web-toed hind feet. Males are massive, weighing up to 8,500 lbs. 90 96 4. The trained seals seen in water parks and circuses are usually California sea lions. Updates? 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 male stellar sea lion can grow to the size of a compact car weighing over 2000 pounds and measuring over 10 feet long. 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. Sea lions are hunted, though not on a large scale, for their meat, hides, and blubber. Adult females are significantly smaller and slimmer than males. The fur seal and the elephant seal are now regenerating after near extinction. Our editors will review what you’ve submitted and determine whether to revise the article. In the case of sea lions, the males can be almost four times larger than females when adults. Crowding is a sea lion thing, and they would prefer to sleep three bodies deep than move to an unoccupied platform. Sea lions congregate in gregarious groups called herds or rafts that can reach upwards of 1,500 individuals. Can you tell a seal from a sea lion? Males can weigh up to 390kg (850lbs) and have a distinctive raised bony bump on their head known as a sagittal crest. In captivity it can live more than 30 years (less in the wild). Male sea lions gather at specific breeding grounds early in the mating season, and actively attempt to establish their own territories before females arrive. Steller Sea Lion Stellers are the largest of all sea lions and they have an appetite to match. All seals and sea lions, along with the walrus, are grouped together as pinnipeds. Also often referred to as the "walking seals",  the eared seals can actually move, even run, quite rapidly when necessary. 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. Females will give birth within a few days of arriving at the rookery, and will be ready to mate 10 to 14 days later. Technically, seals and sea lions are in the same taxonomical suborder of pinnipeds. Sea lions are characterized by a coat of short coarse hair that lacks a distinct undercoat. The walrus, the "true seals" and the "eared seals" or "walking seals". Identification. Sea lion, any of six species of eared seals found primarily in Pacific waters. 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. Landscape Sunset. 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. South American sea lions, Otaria flavescens (Shaw, 1800), aka southern sea lions, are also referred to as Otaria byronia.They vary in size within the species and between males and females. This helps them escape from their enemies, kill… Except for the California sea lion (Zalophus californianus), males have lion-like manes and constantly roar to defend their harems (hence their name). Many females live on barrier islands year round, raising their pups in large daycare groups with multiple mothers keeping an eye out for danger. Sea lions feed principally on fish, crustaceans, and cephalopods (squid and octopus), but they also will consume penguins. In addition to the presence of external ears, eared seals have longer flippers than do earless seals. Because sea lions are mammals and must breathe air, they cant stay underwater forever! True or False: Can You Tell a Seal From a Sea Lion? They gained enough insight into the dynamics of the population to fill in gaps from a few years with little data. Sea lion in Galapagos National Park, Galapagos Islands, Ecuador. Male sea lions may fast for up to 40 days during mating season. Like many marine mammals, sea lions are remarkably intelligent with excellent senses of sight, hearing and smell. 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. 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. Adult males are about 8 feet (2.4 meters) long from nose to tail and weigh an average of 600 pounds (272 kilograms). The tusk and stiff whiskers mainly differentiate a walrus from a sea lion. 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. 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. 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. 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. Large-eyed and playful, it is pale to dark brown but appears black when wet. 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. They are about 6 feet (1.8 meters) long and weigh an average of 220 pounds (100 kilograms). Lion Fish Aquarium. The word pinniped means "flipper feet" or "feather feet" and includes three types of semi-aquatic marine mammals. most successful and widely distributed family of carnivores in the world. There are 7 species of sea lions, and 9 species of fur seals that make up the "eared seals". 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. They are solitary hunters and rarely if ever take large game such as penguins or seals, concentrating mostly on small squid and school fish such as  herring and anchovy, which they can swallow whole, without any chewing at all. The sexual size difference in the Steller sea lion is achieved through a longer period of growth in length and a pubertal growth spurt in mass of males. Sea lions are highly social, and happy to live in very close company. Sea lions are members of the seal or pinniped family. Size . With long, powerful front flippers, their natural position is upright with the chest raised off the ground. Folks who had docked their boats in the area for decades simple moved out, and the wildlife took over. 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. 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. Legend has it that California sea lions began to appear in extremely large numbers after an earthquake struck California in 1989. 566 Free images of Sea Lion. Sea Lion Reviews - Perception | Buyers' Guide | Paddling.com Breeding occurs in large herds, the males establishing harems of 3 to 20 females. 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. 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. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. unique, compressed and web-toed hind feet. The maximum recorded dive depth is 274 metres (900 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 … This process is known as embryonic diapause and is fairly common in many large mammals. Australian Sea Lion – Males are dark brown with a light yellow mane around their heads. 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. In preparation for the breeding season, their weight often increases up to 1,000 pounds (454 kilograms). Sea lions are great swimmers, too, reaching speeds of 18 miles per hour (29 kilometers per hour) for short bursts. Walrus is also bigger than sea lions. Mother and pup may stay together for up to two years before the youngster heads out on its own. Population number. 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