The pup can recognize its mother by her distinct vocalization, and it likewise has its own unique vocalization that the mother can recognize. PLA22-21 The Antarctic Peninsula Basecamp cruise offers you a myriad of ways to explore and enjoy the Antarctic Region. orca leopard seal - YouTube. SEALS AND SEA LIONS are marine mammals known as pinnipeds; there are 33 species worldwide. Although they feed in the sea, they surface for air. In the case of sea lions, the males can be almost four times larger than females when adults. Though their bodies can appear chubby, seals are generally smaller and … Dr. Mike Heithaus and others try to tranquillize a lion. California sea lions are the "trained seal" of marine parks and circuses. Seals lack an external ear flap whereas sea lions have an external ear flap that is visible. The captured bird is thrashed about on the water until its skin peels away. Their loose jaw can open as far as 160 Kristen Dell, National Geographic Society, Sheryl Hasegawa, National Geographic Society And, It eats the dead seal. Males measure about 20 feet long (6 meters), while females are about half as long. This curated collection for learners in grades 3-5 can be implemented at home with minimal supplies and includes engaging, fun, and skill-building lessons in social studies, geography, science, and more. A quick look at Youtube says yeas they do. All are carnivores that hunt at sea — often for fish and squid — and breed on land; mostly in large, noisy colonies. Sea lions are part of the family Otariidae, along with fur seals. The sea lion has a big weight advantage. Discuss how this movement relates to the animals' vulnerability to predators like polar bears and sharks. They can rotate under the sea lion's body and support it, enabling the sea lion to "walk" with the flippers on land. True seals don’t have visible ear flaps, though animals like fur seals are sometimes called referred to as eared seals. For information on user permissions, please read our Terms of Service. Sea lions (and seals) go through a protracted pregnancy period, with the females carrying their young in utero for approximately 340 days. When you reach out to him or her, you will need the page title, URL, and the date you accessed the resource. That's great to hear! Before diving, seals get rid of all oxygen within their lungs, which helps them avoid a condition called “the bends” while diving, which is the formation of gas bubbles in the blood when rapidly ascending to the surface. Pinnipeds are those animals that spend a lot of time on both the shore of a landmass and in the ocean, and they include walruses along with sea lions and seals. Introduce the concept of classification.Discuss why scientists classify animals into different groups. There are currently six extant species of sea lions in the world: Stellar’s sea lion, Australian sea lions, South American sea lions, New Zealand sea lions, the California sea lions, and the Galapagos sea lions. They also engage in shoving matches, slamming into each other. Seals have shorter front flippers; sea lions have longer front flippers.) Seals, sea lions and walruses are marine mammals and belong to the order pinnipedia. Perhaps it’s because there’s a lot of very cool folklore about it.” — Delia Sherman. Being at home is a great time to learn. (907.18 kg). The other resident eared seal is the Steller, or Northern, sea lion (Eumetopias jubata), a federally threatened species. Otariid species are typically more upright when on land, and can move with reasonable agility. Let’s sort out the taxonomy first. The largest is the southern elephant seal. "Remember dumplings, I know where you live." Then ask them to compare how each animal uses its flippers on land and in water. True earless seals belong to the family Phocidae, and they are found throughout polar and temperate climates all throughout the world, including around the Pacific ocean. A sea lion’s ability to vocalize also helps a mother find her own pup in a thick crowd of other sea lion pups. Start learning with a free trial at https://skl.sh/tierzoo7Check out Mike's video here! They are uniformly dark brown and vocalize with the notable sea lion "bark". Have students compare the two drawings and list at least two features that seals and sea lions share. Also, sea lions are just plain noisy, whereas seals are a bit quieter. Prove you're human, which is bigger, 2 or 8? Want to know more? “The biggest predator of fish like cod is other fish – and seals keep fish like that in check.” — Paul Watson. The Galapagos fur seal belongs to a genus of fur seals called Arctocephalus (or Arctophoca), meaning bear-headed. Ask students to predict which of these marine mammals could move most easily on land (sea lions).  It feeds on a wide range of prey including cephalopods, other … They are uniformly dark brown and vocalize with the notable sea lion "bark". The sea lion's hind flippers are stronger and more flexible. Give each student a copy of the worksheet Seals and Sea Lions: Compare Want more Science Trends? Their bodies are built for more energy-efficient swimming than sea lions, meaning that they can swim for longer periods of time. 2. (3,855.5 kilograms). 6. Then, The orca and leopard seal both swim back into the sea. As the sea ice melts ever earlier in the season, swimming to escape predators becomes even harder. Seals lack an external ear flap whereas sea lions have an external ear flap that is visible. It’s important that a female sea lion is able to find her own pup because they often leave them for up to days at a time to go hunting for food, at least after the first two weeks after the pup is born. Sustainability Policy | This completely flips the whole stereotype that seals are only lunch for sharks on its head, although you probably won’t see a sea lion eating a great white shark. for arguing that human beings necessarily always act in their own self-interest. As horrible as it is, but one really easy way to tell them apart comes to us courtesy of the Discovery Channel. Washington, DC 20036, National Geographic Society is a 501 (c)(3) organization. Kim Hulse, National Geographic Society Leopard Seal This article is about the character. Seals are quieter, vocalizing via soft grunts. California sea lions are the "trained seal" of marine parks and circuses. The also hunt Hump Backed Whale calves, and Great White Sharks. The Leopard Seal (also known as Rojas in a interview with George Miller) is a male leopard seal that tries to eat Mumble in the water for breakfast and a minor antagonist of Happy Feet. The leopard seal (Hydrurga leptonyx), also referred to as the sea leopard, is the second largest species of seal in the Antarctic (after the southern elephant seal). Watch and discuss the video.Show students the video of leopard seals. 3. They return to land to give birth and nurse their young. There are 18 species of true seals, according to Seals World. Sexually mature males are much larger than females, and have a sagittal crest, or large bump, on their heads. Seals also lack visible ear flaps and are better adapted to swimming for long periods than sea lions. Have students make predictions.Explain to students that seals' rear flippers extend backward; sea lions' rear flippers extend forward. Source: Leopard Seal Hunting Gentoo Penguins, Richard Sidey Seals and sea lions are often portrayed as innocent puppy dogs of the sea. They can be found all around the globe, from subarctic water to warmer tropical waters. Seals generally mate freely with one another, and the males of seal species typically don’t help rear young. We're sorry to hear that! This activity targets the following skills: The resources are also available at the top of the page. The smallest is the ringed seal, with an average length of 5 feet (1.5 m) and a weight of 110 to 150 lbs. The remaining carcass is then eaten. Sea lions who make their homes in warmer, tropical waters like the South American sea lion, tend to be smaller than those which make their home in colder waters. It’s understandable since their names and appearance have certain similarities. Better than double the weight. They tend to be cryptic […], In most East and Southeast Asia countries, mosaic crop production systems usually consist of relatively small land holdings ( < […], It is clear that we cannot live without plastic anymore. She or he will best know the preferred format. (Possible answers: Seals do not have ear openings; sea lions do. The most notable anatomical differences are the ears and the flippers. Seals and sea lions are both mammals. By contrast, seals flop and scoot around on their stomachs while on land and don’t have noticeable ear flaps. If no button appears, you cannot download or save the media. frogs and salamanders) are not a part of everyday life. Leopard seals have unique cheek teeth that are shaped to allow them to strain krill from the water. Join our community of educators and receive the latest information on National Geographic's resources for you and your students. For the seal, see Leopard Seal. 1. Sign up for our science newsletter! The orca wins. 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. Tell them they can confirm or revise their predictions as they watch a video.5. When comparing a sea lion vs. seal you can spot the difference a few ways, one of which is the lack or presence of an ear. How can you tell the two apart? Behind the Scenes of Our January 2021 Special Issue, ‘2020: The Year in Pictures’ If eating penguins and other seals wasn’t enough, seals and sea lions are also known to eat sharks. Females are much smaller, but still weigh more than a car at 2,000 lbs. Although they are not considered endangered, as sea ice melting earlier and earlier each year, available harp seal breeding grounds are being lost in the North Atlantic and Arctic. They communicate through quieter grunts and whines than sea-lions, who are known for their loud barks. Let’s sort out the taxonomy first. Stubby flippers built for swimming, but must scoot along while on land, Have more defined legs that allow them to walk on land, Are known for being more vocal than seals. But seals and sea lions belong to different families. Sea lions need to eat quite a bit of meat every day to thrive, sometimes consuming up to 50 pounds of squid or fish in a single day. The answer is 1, […]. Seals typically live in groups consisting of hundreds of individuals during the mating season. Also, sea lions are just plain noisy, whereas seals are a bit quieter. Terms of Service | “Every March, up to 200,000 harp seal pups are born on sea ice in the Gulf of St. Lawrence. Have you ever been confused by the difference between sea lions and seals? Have students write a paragraph summarizing the information they find. Sea lions and fur seals (seals with thick fur that are more similar to sea Sea lions also have a more rounded snout whereas the fur seal has a more pointed nose. Distribute the worksheet and have students identify similarities. a modification of an organism or its parts that makes it more fit for existence. The Japanese sea lion went extinct in the 1950s. Which will dominate in a confrontation? The family phocidae is made up of the 'true seals' and contains species such as the leopard seal and the southern elephant seal. Eared seals include fur seals and sea lions. In addition, sea lions have a loud bark and walk on their large rear flippers versus seals more wriggle on their belly and have smaller rear flippers. Sea lions are very vocal in comparison to seals, capable of making a wide range of barking and grunting noises. Using Crittercam® scientists try to learn about the leopard seal's hunting tactics. We help hundreds of thousands of people every month learn about the world we live in and the latest scientific breakthroughs. Third, sea lions are noisy. The pinniped suborder has 33 species in three families. Distribute the worksheet and have students identify similarities. However, the leopard seal has those predator jaws and is used to killing penguins and other seals. Ask them how they would explain how to tell seals and sea lions apart to someone who has never seen either. Seal pups are raised for between 4 to 5 weeks, at which point they can fend for themselves and their mothers leave them to mate once more. The family otariidae contains 14 species, including the fur seals and sea lions. The other resident eared seal is the Steller, or Northern, sea lion (), a federally Seals are smaller than sea lions; male Stellar sea lions can grow to be up to 2,200 pounds. Don’t say goodbye. They have external ears, hind flippers they can turn forward under the body and walk on and no fur on the under side of their flippers. Like seals, they are solitary hunters, though they are quite social while on land and inhabit colonies of sea lions which can be up to 1500 individuals large. That’s the short answer, but let’s go over the two animals in more detail, as it will help distinguish the two from one another. New Zealand examples are the New Zealand fur seal and New Zealand sea lion. In terms of communication, seals tend to be quieter than sea lions. Privacy Notice | Sea lions are pinnipeds characterized by external ear flaps, long foreflippers, the ability to walk on all fours, short, thick hair, and a big chest and belly.Together with the fur seals, they comprise the family Otariidae, eared seals, which contains six extant and one extinct species (the Japanese sea lion… We cover everything from solar power cell technology to climate change to cancer research. The general size of a sea lion Eating a leopard Shark, SD Expeditions Mike Heithaus others! Their loud barks Many similarities, and Great White sharks Hobbes was famous ( infamous )! Innocent as you ’ d like to believe those predator jaws and is used to killing penguins other... 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