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The hunting of beluga whales by Alaska Natives for subsistence, in addition to other human and natural threats, caused the Cook Inlet population of belugas to decline by an estimated 71 percent since 1979.
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Beluga Whale

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Whales are identifiable by their distinct pattern of callosities.
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Whale Callosities

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spinner dolphins in Hawaii
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Spinner Dolphins in Hawaii

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Phoenix swims in George’s Bank, off the coast of New England, on March 13, 2009.
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Phoenix in George's Bank

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Sea lions generate thrust, or forward propulsion, by bringing their fore-flippers together in big sweeping motions called “claps.”  When a sea lion “claps,” it stretches its flippers out to the sides and sweeps them down. Then it tucks its flippe
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Aquatic Locomotion of a Sea Lion

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A manatee swims in Crystal River, Florida.
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Florida Manatee in a Fresh Water Spring

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Two sea lions interact amongst schools of small fish.
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Seal and Sea Lion Pictures

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A baleen plate with a drawing of a ship in paint
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Artful Baleen Plates

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Photo of a man holding totoaba a vaquita caught in a net underneath.
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Vaquitas as Bycatch

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two veterinarians listen to a dolphins heart next to a dock
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Navy Dolphin

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Spinner dolphins in a small inlet off the Kona coast, Hawaii.
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Spinner Dolphins

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Two sea lions interact amongst schools of small fish.
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Seal or Sea Lion?

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