More Corals

The branches of a primnoid coral in the genus Calyptrophora provide a habitat for galathaoid crabs. Learn more about the deep-sea coral reefs in our Deep-sea Corals article .
Detail of the Smithsonian Community Reef, a local, community-created "satellite" to the Institute For Figuring's Hyperbolic Crochet Coral Reef exhibit.
Ocean scientists recently discovered this new species of black coral off the coast of southern California. It was named the “Christmas tree” coral, Antipathes dendrochristos , in 2005 because of its...
For those of you who have had the opportunity to visit a coral reef , you know that it’s an experience you are unlikely to forget. Coral reefs are among the world’s most magnificent ecosystems. Their...
Sponges are animals that eat tiny food particles as they pump water through their bodies. They are very common on Caribbean coral reefs, and come in all shapes, sizes and colors. There is great...
Marine scientists photographed and measured this gorgonian coral (Chrysogorgia sp.) and deep-sea shrimp (Bathypalaemonella sp.) just as they were collected—together. Find out how ocean scientists...
The Pisces IV submersible sits on a saddle near Kingman Reef in Hawaii next to a gold coral ( Gerardia sp. ). The photo was taken by another Hawaii Undersea Research Laboratory submersible— Pisces V...
Peter Auster and colleagues direct a Remotely Operated Vehicle (ROV) dive on the New England Seamounts. Three teams composed of three scientists and four ROV engineers take two 4-hour watches every...
After ocean scientists sort deep-sea corals according to their different types, they carefully measure and photograph the specimens. Find out how ocean scientists study deep-sea corals in our Deep-...
Tree corals like this Calyptrophora bayer can grow several meters high and resemble brightly colored trees. This deep-sea coral was found 1,683 m (5,522 ft) deep on the Davidson Seamount. See more...
The Oculina deep-sea coral reef at top has not been disturbed by humans—but trawling has devastated the one at bottom. When fishermen trawl, they drag a net along the seafloor, destroying everything...
What is coral bleaching? These white corals in the Gulf of Mexico’s Flower Garden Bank National Marine Sanctuary are bleached due to an increase in water temperatures, which causes corals to lose the...
A thicket of white stony coral ( Lophelia pertusa ) shelters a squat lobster (Eumunida picta). This is the typical shape of this widespread species of deep-sea coral. See more pictures of coral in...
A diversity of deep-sea corals—including primnoid coral ( Narella sp.), black coral ( Trissopathes pseudtristicha ), and feather stars ( Florometra serratissima )—flourish 2,669 m (8,757 ft) deep on...
Sample the surprising diversity of deep-sea corals. See some of the ways they differ in color, shape, and size. Explore more in the multimedia feature " Coral Gardens of the Deep Sea ."
If you look closely, you can read a message in the corals. We are not being metaphorical. Barry and Aimee Brown set out to search for hidden letters among brain coral colonies two years ago near the...
These corals are dead—smothered in sediments and overgrown with algae. The reef is near Komodo Island in Indonesia. More about coral reef ecosystems can be found in our Coral Reefs featured story .
A coral hermit crab, Paguritta harmsi , about the size of two grains of rice, living in coral in the waters of Japan's Ogasawara Islands.
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