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An illustration of a recently discovered species of Monodontid, Bohaskaia monodontoides, and its beluga and narwhale relatives
Article

Smithsonian Scientists Describe a 'New' Fossil Whale

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Aerial view of a North Atlantic right whale mother and calf.
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Hope & Despair for the North Atlantic Right Whale Population

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a veterinarian listens to a dolphin's heartbeat
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The Musical Hearts of Dolphins

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A 3-D reconstruction of the skull of a fin whale fetus.
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Keeping An Ear Out For Whale Evolution

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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
Article

How Do Sea Lions Swim?

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Fossil Whale Digsite at Cerro Ballena, Chile
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The Digsite at Cerro Ballena

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A vaquita swims at the the water's surface.
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The Vanishing Vaquita

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Humpback whales spend their summers feeding in cold, food-filled Arctic and Antarctic waters before swimming to warmer waters for the winter.
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Humpback Whales Going After Herring

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Photo of a Hawaiian monk seal on the beach, with the ocean in the background.
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The Endangered Hawaiian Monk Seal

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The Natural System of Wrangel Island Reserve site in Russia was inscribed on the World Heritage List in 2004. Located well above the Arctic Circle, the site includes the mountainous Wrangel Island, Herald Island, and surrounding waters. The reserve has exc
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Natural System of Wrangel Island Reserve, Russian Federation

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Dolphins swimming among oily patches in the Gulf of Mexico
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Dolphins Swim in Oily Waters

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This whale is entangled in fishing gear. The inset shows how special fishing lines allow whales to escape such accidental entrapments.
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Fishing Gear Solutions

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