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 Scientist Martha Nizinski holds a specimen of a fan sponge (Phakellia sp.) collected at a deep-sea coral study site off the coast of South Carolina.    
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Fan Sponge

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

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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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Two nurse sharks hover over a baited cage
Lesson Plan

Fish Feeding

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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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an orange coral at the bottom of the ocean
Article

A Fantastic Journey: From the Seafloor to the Museum Collection

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Compare the healthy coral on the left with the bleached coral on the right.
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Bleached Corals, Pacific Ocean

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

Two Views of Coral Reefs: Thriving and Threatened

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Two nurse sharks hover over a baited cage
Lesson Plan

What is a Coral Reef? Middle School

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A stingray swims in an Australian marine reserve.
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Australia's 1.2 Million Mile Marine Reserve

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