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Unlike the shallow tropical coral reef at left, the deep-sea Oculina reef at right does not require sunlight.
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Shallow and Deep-Sea Coral Reefs

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A fish from a deep underwater expedition sits preserved on a bed of ice.
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Fish on Ice

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Dive through the zones of the ocean to the deep ocean bottom where many strange species live, and there are many yet to be discovered. Explore them in the Deep Ocean Exploration section.
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ROV Exploring the Deep Ocean

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This recently discovered hairy crab species (Kiwa hirsuta) has no eyes.
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Yeti Crab

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This jelly’s red color provides camouflage in the ocean depths.
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Unidentified Comb Jelly

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On a seamount peak, a huge colony of brittle stars (likely Ophiacantha rosea) feeds on passing particles.
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Millions of Brittle Stars

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Dr. Stephen Cairns, a Smithsonian research zoologist, studies deep-water corals.
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Dr. Stephen Cairns

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Scientist Martha Nizinski examines a sample of the deep-sea coral Lophelia pertusa, collected 600-m (1,969-ft) deep off the coast of the southeastern United States.
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Deep-Sea Coral Sample

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A submersible explores the deep reefs off of Curacao in the Caribbean.
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DROP: The Deep Reef Observation Project

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This new species of lobster (Dinochelus ausubeli) is blind and has bizarre claws. It was discovered about 300 meters (984 feet) deep in the Philippine Sea by a Census of Marine Life expedition.
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Deep Ocean Diversity Slideshow

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a deep sea jellyfish
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The Deep Sea

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This aptly named fish has two long fangs.
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Fangtooth Fish

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