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They are marine mammals that are perhaps the most specialized of all the mammals, with their fish shaped, hairless body, flipper like front limbs and very strong back limbs located within the body wall. There are two species of whales Baleen Whales and Toothed Whales.
The heaviest sea mammal in the world is the Blue Whale. It weighs 128 tons The loudest sea animal in the world ? The loudest sea animal is the Blue Whale. It can be heard by other whales 1,000 miles away ( 1,600 km ) away.
Beluga Whale at Sea World in San Diego, California
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