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The Peninsula Valdes in Argentina was inscribed on the World Heritage List in 1999. The site is home to important breeding populations of the endangered southern right whale (Eubalaena australis), southern elephant seal (Mirounga leonina), and southern sea
Slideshow

Marine World Heritage Photo Gallery

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stony corals among sea fans
Article

Ancient Reefs Reveal Glimpse at Future Oceans

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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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Intense volcanic CO2 vents in Ili Ili Bua Bua, Normanby Island, Papua New Guinea.
Slideshow

Will Coral Reefs Survive Acidification?

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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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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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A coral has just spawned. Each of the hundreds of polyps releases a small pink bundle of sperm and eggs.
Photo

Coral Spawning by Moonlight

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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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Gerardia, or gold coral, species often have a tree-like shape, as evident in this specimen.
Photo

Gold Coral

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A pair of French Angelfish (Pomacanthus paru) swim off the coast of Brazil.
Photo

Pair of Angelfish

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An underwater photo of a yellow-mouth moray eel.
Photo

Yellow-mouth Moray Eel in the Red Sea (Eilat, Israel)

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This map shows where some of the most significant species of deep-sea corals are located.
Photo

Deep-Sea Corals Worldwide

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