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On Moorea, an island in French Polynesia, researchers are striving to complete a biocode—a DNA catalog of every life form big enough to pick up with tweezers.
Overview

Scientists Catalog Life on the Island of Moorea

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Colorful fishes throng a reef in the Northwestern Hawaiian Islands.
Slideshow

Bizarre and Beautiful Coral Reef Animals

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Corals, sponges, and algae are the major components of most coral reef communities as shown in this picture.
Overview

Corals and Coral Reefs

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This orange boring sponge (Cliona varians) overgrows several coral species at Panama's Smithsonian Tropical Studies Institute.
Article

Ocean Acidification Excites Boring Sponges

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Close-up photograph of translucent coral polyps, showing the symbiotic algae living inside.
Slideshow

Zooxanthellae and Coral Bleaching

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A zoomed-in image of the crown-of-thorns sea star.
Article

A Plague of Sea Stars

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Corallimorpharian
Photo

Soft Coral Close-Up

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The staghorn coral is listed as Threatened under the U.S. Endangered Species Act. It is one of 22 coral species listed.
Photo

Staghorn Coral

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Photograph of a bristly brown and white worm, with one end pressed against a pale green coral.
Photo

Fireworm Takes on Fire Coral

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dead coral from disease
Article

Sickness in the Sea: A Coral Plague Hits Florida

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Orangutan crabs are covered in thin reddish hairs, and are frequently found living in bubble coral.
Photo

Orangutan Crabs from Komodo Island

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Colorful Christmas tree worms
Photo

A Forest of Christmas Tree Worms

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