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Fossil tooth whorl of ancient shark.
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Fossil tooth spiral

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Extreme close-up of great white shark skin denticles.
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Biomimicry Shark Denticles

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On May 31, 2009, this robotic vehicle reached the deepest part of the ocean.
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Hybrid Vehicle Nereus

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A deep-sea octopod wraps itself around a submersible’s robotic arm in the Gulf of Mexico.
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Octopod on Submersible Arm

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Three distinct types of killer whale can be found in the Antarctic, each with a different habitat and diet preference.
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Orcas in the Antarctic

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Emperor penguins are the largest of the penguin species and can grow to be 100 pounds.
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Emperor Penguins on the Ice

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A many-armed, orange starfish.
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A Filter-Feeding Starfish

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Superheated magma slowly leaks from a crack in the seafloor.
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Superheated Magma Underwater

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Pelicans Roost at oil spill "ground zero" two years later.
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Pelicans Roost at Oil Spill "Ground Zero"

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A photo of Oceana's ice class research vessel, the Hanse Explorer, on the Baltic Sea.
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The Hanse Explorer, Research Vessel

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Inside the remotely operated vehicle (ROV) Jason.
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Views from the ROV Jason

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Shown here are several deep-sea coral species: From left to right are an unidentified purple octocoral, a small gold acanthorgorgiid octocoral, and a large colony of pink Corallium secundum
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Diverse Deep-Sea Corals

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