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North Atlantic right whales and ocean-going vessels often cross paths.
Article

Slow Down for Right Whales

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A 3-D reconstruction of the skull of a fin whale fetus.
Article

Keeping An Ear Out For Whale Evolution

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Two sea lions interact amongst schools of small fish.
Slideshow

Seal and Sea Lion Pictures

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Hawaiian monk seals are among the wildlife found within the Papahānaumokuākea World Heritage Site.
Slideshow

Endangered Ocean Animals

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A researcher holds an arm bone from a "toothed" mysticete whale from Vancouver Island.
Article

Dispatches from the Field: Treacherous stream crossings and a new fossil find

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Phoenix swimming with her calf.
Article

Scientists Use Bioacoustics to Protect Marine Mammals

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A hippopotamus-like creature swims underwater
Article

Flippers or Feet? An Extinct Mammal May Have Been Replaced By Today's Sea Cows

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An illustration of multispecies communities of dugongs from India, Mexico and Florida
Article

The Discovery of Multispecies Communities of Seacows

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In this painting, a giant squid engages in a struggle for survival with a sperm whale.
Article

The Mystery of Ambergris

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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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The Ross Sea is a 1.9 million square mile (3.6 million square km) stretch of ocean off the coast of Antarctica.
Slideshow

A Trip South to Antarctica’s Ross Sea

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Smithsonian researchers eat a meal in preparation for a fossil excavation
Slideshow

A Squalodontid Success

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