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Grey reef sharks are among the most versatile and tough predators on a Pacific coral reef, but they are also among the most vulnerable species, as they are threatened by wasteful fishing practices like shark finning.
Article

Where the Shark and the Snapper Roam

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In some reefs, small fishes such as this broad-barred goby protect corals by eating invading seaweeds.
Photo

Coral Goby Cleans Coral

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

Reef Fish, French Frigate Shoals

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Fish swim underwater amidst mangrove roots at Bocas del Toro, Panama.
Article

On the Trail of DNA in the Ocean

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Convict surgeonfish are the roaming sheep of the reef but, instead of noshing on grass, they feed on algae.
Article

Helpful Herbivores

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A pearly razorfish
Photo

Pearly Razorfish

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An unidentified moray eel held in researcher's hands.
Photo

A Baby Moray Eel, or a Really Small Adult?

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This queen parrotfish scrapes algae from Caribbean reefs with its parrot-like beak.
Article

From Despair to Repair: Protecting Parrotfish Can Help Bring Back Caribbean Coral Reefs

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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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A whale shark swims with a diver off the coast of East Africa.
Article

The Big Five of the Ocean: Exploring the Waters of East Africa

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A small gray fish with two orange stripes, hides in between corals.
Article

Tiny Fishes Fuel Coral Reefs

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A blue parrotfish hides among coral.
Article

Tough Teeth and Parrotfish Poop

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