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Auster and colleagues direct a remotely operated vehicle (ROV) dive on the New England Seamounts.
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Scientists Conduct an ROV Dive

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Image of a rapa whelk, a large marine snail retreated into its shell
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Rapa Whelk

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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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Red coral necklaces in a display window. Harvesting deep-sea coral to produce jewelry like this threatens these ecosystems.
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Coral for Sale

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“This shark was cruising low along the reef known as Alcyone. Her left eye was glancing up toward other hammerheads when I took this shot from below.” -- Nature's Best photographer, Alan Studley.Equipment Used to Capture the Shot: Nikon D300; Tokin
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Hammerhead Shark, Cocos Island, Costa Rica

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This Marine National Monument protects a chain of atolls and reefs 1,931-kilometers (1,200-miles) long.
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Northwestern Hawaiian Islands Marine National Monument

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But closer to the CO2 seeps, the complex reef has been replaced by a “monoculture” of boulder corals.
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Monoculture of Boulder Corals

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Waves breaking on the shore
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Currents, Waves, and Tides

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Smithsonian Scientists Dig a Trench Around a squalodontid Skull
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Expedition to Excavate a Fossil Whale

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A screenshot from video showing glowing dinoflagellates being eaten by a barnacle.
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Glowing Dinoflagellate Meal

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A screenshot from video showing an illustration of a satellite view of Earth.
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Just How Big Is the Ocean?

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