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After ocean scientists sort deep-sea coral samples into their different types, they measure and photograph the specimens.
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Photographing Coral Samples

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The pink strands of this coral harbor a variety of organisms. Sea whips are gorgonian corals, with flexible skeletons.
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Sea Whip Coral

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This bubblegum coral has a fanlike shape. It is growing 1,310 m (4,298 ft) deep on the Davidson Seamount.
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Bubblegum Coral

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: Black corals often resemble bushes or trees. Their living tissue can be one of several colors. It’s the skeleton that is black.
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Black Corals

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These deep-sea corals at the Madison-Swanson Marine Reserve are protected, along with the marine life they harbor.
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Protected Deep-sea Corals

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A submersible’s robotic arm collects gold coral in the Hawaiian Islands. Similar specimens have been dated at more than 2,700 years old.
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Collecting Gold Coral from the Deep Sea

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Scientists recently discovered the Christmas tree coral (Antipathes dendrochristos) off the southern California coast.
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New Christmas Tree Coral

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The robotic arm of the Jason, a Remotely Operated Vehicle (ROV), collects several stalks of black coral from the seafloor.
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ROV Collects Black Corals

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The Autonomous Underwater Vehicle (AUV) SeaBed is about to be deployed.
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Autonomous Underwater Vehicle

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The Hawaii Undersea Research Laboratory’s Pisces V submersible is lowered for a dive to study deep-sea corals.
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Submersible Launch

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This map shows where some of the most significant species of deep-sea corals are located.
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Deep-Sea Corals Worldwide

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Unlike the shallow tropical coral reef at left, the deep-sea Oculina reef at right does not require sunlight.
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Shallow and Deep-Sea Coral Reefs

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