More Corals

While bottom trawling—a fishing method that drags a large net with heavy weights across the seafloor—fishermen often catch more than their target fish. Here, they've scooped up a large deep-sea coral...
This bearded fireworm ( Hermodice carunculata ) must have a strong stomach -- it’s sucking on fire coral ( Millepora sp. ), which would give the unlucky snorkeler a nasty sting. Encountered in St...
When you are shopping for gifts and jewelry, steer clear of gifts that use real coral or other marine animal products. Deepwater pink and red corals in particular have been prized for their beauty in...
Ocean acidification is sometimes called “climate change’s equally evil twin,” and for good reason: it's a significant and harmful consequence of excess carbon dioxide in the atmosphere that we don't...
The People's Reef, a part of the Hyperbolic Crochet Coral Reef , from above. The HCCR was created by Margaret and Christine Wertheim of the Institute For Figuring and is on exhibit at Smithsonian's...
Sea stars are important members of marine ecosystems, especially in the tropics. We may think of tropical coral reefs as being home mainly to fish and corals, but in fact these habitats are home to a...
See a few of the many species of deep-sea corals that have been discovered by scientists just since 2004. Learn about more deep-sea discoveries in our Deep-sea Corals article.
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...
Unlike the shallow tropical coral reef pictured on the top, the deep-sea Oculina reef at bottom does not require sunlight. Learn more in the article " Coral Gardens of the Deep Sea ."
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...
A variety of corals colonize the rocky surface of Manning Seamount, part of the New England Seamount Chain located in the Atlantic Ocean just off the coast of Cape Cod, Massachusetts. This photo was...
J. Murray Roberts is a scientist who studies and maps an area of the cold-water coral called Lophelia in the North Atlantic, where the bases of some coral mounds are 2.6 million years old. Explore...
Corals are sedentery animals, so how do they reproduce? One way is sexually through spawning , when the corals release eggs and sperm into the water (often at the same time due to some sort of...
A rockfish finds refuge in a deep-sea coral—a red tree coral of the Primnoidae family in the Olympic Coast National Marine Sanctuary. Learn more about deep-sea coral reef ecosystems in our Deep-sea...
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 .
Welcome to Citizens of the Sea , a new blog series where ocean life comes to life. Our book by the same name came out in September, but no sooner had it gone off to the printer than new ocean stories...
This deep-sea black coral from Hawaii ( Leiopathes sp. ) is more than 4,200 years old. Black corals are named for the color of their skeletons, but the external tissues of black corals come in many...
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...
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