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Two nurse sharks hover over a baited cage
Lesson Plan

Caribbean Coral Reef and Climate Case Study

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This species of bamboo coral, discovered in 2004 in the Pacific Northwest, has unusually long and impressive tentacles.
Photo

New Bamboo Coral

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Unlike the shallow tropical coral reef at left, the deep-sea Oculina reef at right does not require sunlight.
Photo

Shallow and Deep-Sea Coral Reefs

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

Acanthaster planci

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corals polyps open and spawning
Article

Corals from the Deep Thrive under Aquarists Care

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A pearly razorfish
Photo

Pearly Razorfish

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

New Christmas Tree Coral

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A bluefin trevally swims in Hawaii’s Maro Coral Reef, part of the Papahānaumokuākea Marine National Monument.
Photo

Hawaii’s Maro Coral Reef

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Orange and red deep-sea corals.
Photo

Aleutian Coral Reef

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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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A squat lobster and blackbelly rosefish find shelter on a Lophelia pertusa coral reef off the southeastern United States.
Photo

Coral Reef Lobster and Fish

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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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