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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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Brian Skerry takes an up close photo of a tiger shark on the seafloor.
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Face to Face with a Tiger Shark

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This recently discovered hairy crab species (Kiwa hirsuta) has no eyes.
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Yeti Crab

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Students share a microscope to get a closer look at plankton samples from the Deepwater Horizon Oil Spill.
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Students Study Plankton

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Ruth Meadows holds a Chimaera, a strange looking distant relative of the shark.
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NOAA Teacher at Sea Ruth Meadows

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In Egypt, Dr. Jean-Daniel Stanley of the Smithsonian studies submerged ancient settlements.
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Underwater Archaeology

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Researchers use underwater equipment to measure a skate (Bathyraja richardsoni) on the Mid-Atlantic Ridge.
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Measuring a Skate on the Mid-Atlantic Ridge

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Dr. Vecchione served as Chief Scientist on this 2009 expedition to the Mid-Atlantic Ridge.
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Dr. Michael Vecchione

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Fish have certain adaptations, like blood with built-in antifreeze, to survive in the Antarctic.
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Fish Adapt to Icy Water

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Many Antarctic creatures, like the dinner-plate-sized sea spiders, have evolved to a gigantic size to cope with the extreme environment.
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Cold-Water Sea Spider

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A small Adélie penguin hops on a piece of ice.
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Adélie Penguin Jumping Out of the Water

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The frogfish uses camouflage to hide from predators.
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Three-spot Frogfish

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