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A leatherback sea turtle, also known as lute turtle, leathery turtle, is the largest currently living turtle that belongs to Genus Dermochelys, Family Dermochelyidae, and is found in all oceans except for the polar region. Toothed whales feed primarily on fish. external ear flaps The front limbs became modified as paddle-shaped flippers, the bones of which are still reminiscent of jointed limbs and digits, but the hind limbs were lost. Eventually, the whales' hind legs shrank so much that they disappeared completely. No claws, no hind limbs and no external ears. walruses, earless and eared seals), sirenians (e.g. larger (6-27 m) Calculate the power developed by an engine with torque 1250N1250 \mathrm{~N}1250N m applied at 5000rpm50 \overline{0} 0 \mathrm{rpm}5000rpm. Limbs are modified into paddles In the paddle, the entire limb skeleton is enclosed by skin. Fortunately, They have thin and long flippers that are perfect for swimming through the water. Their whiskers are sensitive to the movements of small sea creatures. However, the hydrodynamic control surfaces of fish are always referred to as "fins" and never "flippers". All four limbs are modified into paddle-like flippers, and the long tail has a fluke at the end. As the whales grew larger and more abundant, the fish they ate became scarcer and harder to find. bradycardia- slow heart rate Primarily aquatic, beavers are found in rivers and lakes in Europe, Asia and throughout North America, except northern Canada, the southern deserts of the United States and Mexico. What do they look like on the inside and out? - Beluga Whales A beluga whale has broad and short-sized flippers that result in square-shaped flippers. Learn more. (8) Heart 2-chambered (1 auricle and 1 ventricle). The legs and webbed feet are set far back on the body, which causes penguins to walk upright on land and also to aid in streamlining and steering while swimming. The killer whales are the largest dolphins worldwide and can grow over 26 feet (8 meters) long and weigh as much as 7,000 lbs. Through research the articles are well crafted and users will able to find the useful information about animals. homeotherms Surprisingly, The combination of strong flippers and flukes helps to reach a speed of about 56 kmph. a Dugongs have tail flukes with pointed projections at the tips , much like a whale or dolphin , but with a somewhat concave trailing edge . The female' s dorsal fin is falcate while the male' s . Whale - Wikipedia (railcoot, plover, crane, herons), homeotherms This marine mammal is a baleen whale, and all baleen whales have two blowholes. : Pinnipeds are aquatic mammals with all flour limbs modified into flippers. Their massive flippers look like paddles and keep the animal balanced in the water. Their name literally translates to dolphin without a fin but despite lacking a dorsal fin, beluga whales still have flippers.