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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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A marine scientist performs a genetic analysis on a sample of deep-sea coral to find out if it is a known or new species.
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Genetic Analysis of Coral

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A coral head in the Mesoamerican Reef has both bleached and living coral. The white sections are bleached and the brown parts still contain zooxanthellae, the symbiotic algae that provide food to their coral hosts.
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Coral Under Pressure: Monitoring Bleaching In Real Time

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Staghorn Coral
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Staghorn Coral in a Hurricane

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Scientist Martha Nizinski examines a sample of the deep-sea coral Lophelia pertusa, collected 600-m (1,969-ft) deep off the coast of the southeastern United States.
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Deep-Sea Coral Sample

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Coral scientist Dr. Amy Baco-Taylor observed corals like these on her first submarine dive to a deep-sea coral bed off the coast of Hawaii.
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Deep-Sea Coral Community

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Happy World Ocean Day!
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Coral Letters: A Message from the Corals of Curacao

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A coral has just spawned. Each of the hundreds of polyps releases a small pink bundle of sperm and eggs.
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Coral Spawning by Moonlight

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Local yarn and craft shops were highly involved in creating the Smithsonian Community Reef—the local community’s accompaniment to the Hyperbolic Crochet Coral Reef exhibit.
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Crochet Coral Reef Community Window Display

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Acidic waters are also able to completely dissolve coral skeletons.
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Dissolving Coral Skeleton in Acidic Waters

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Marine scientists photographed and measured this gorgonian coral and deep-sea shrimp just as they were collected—together.
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Deep-sea Coral and Shrimp

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This photograph of Gerardia sp. was taken at the Cross Seamount in the Pacific Ocean at a depth of 400 m (1,312 feet).
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Gold Coral Close-up

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