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Cancer cells treated with discodermolide, a chemical from a sponge found on deep-sea coral reefs.
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Treated Cancer Cells

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This black coral is more than 4,200 years old. Named for the color of their skeletons, black corals come in many colors.
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How old is black coral?

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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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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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A photo of coral visibly affected by disease.
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Diseased Coral

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Photo of coral polyp, with a single bleach polyp.
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Corals Threatened by Acid Seas

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Half a century after nuclear testing blasted the reefs of Bikini Atoll, corals have recovered.
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Bikini Atoll Coral

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A diver swims among a school of fish at Bikini Atoll, a reef which has shown resilience and recovered from nuclear testing in the 1940s and 1950s.
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Diver Swims with Fish at Bikini Atoll

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Using dynamite to stun or kill bigger fish to sell at market leaves behind many dead undesired fish as bycatch.
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Fishing with Dynamite

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A school of Hawaiian squirrelfish.
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A School of Hawaiian Squirrelfish

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