Corals

Close-up photograph of translucent coral polyps, showing the symbiotic algae living inside.

Zooxanthellae and Coral Bleaching

Tiny plant-like organisms called zooxanthellae live in the tissues of many animals, including some corals , anemones, and jellyfish , sponges, flatworms, mollusks and foraminifera . These microscopic algae capture sunlight and convert it...
A variety of corals cling to Manning Seamount, just off the coast of Cape Cod, Massachusetts.

Seamounts, A Deep-Sea Habitat

Thousands of seamounts—most of them undersea volcanoes—tower above the muddy seafloor. They provide something hard to come by in the deep ocean : a solid surface to cling to. This photo gallery shows some...
Caribbean boulder star coral (Montastrea cavernosa)

Star of the Reef: One Species at a Time

Each month, the Naked Oceans podcast invites a leading marine researcher to pick the "critter of the month" by asking: if you were a marine organism, which one would you be? This month, Dr...
A variety of organisms make their home on this tropical coral reef in Indonesia.

Coral Reefs Need You

A variety of organisms make their home on this tropical coral reef in Indonesia. Credit: © Chris Newbert/Minden Pictures For those of you who have had the opportunity to visit a coral reef ,...

Medicines from the Sea

You may not think of the ocean as a pharmacy but scientists are developing exciting new medicines from the sponges, corals, and other marine organisms found in the sea. Explore other videos that capture...

Coral Forests of the Deep Ocean

Corals are not only found in shallow tropical waters, but in cold, dark, deep areas of the sea. Amazing coral forests are found at depths of 60-3,050 meters (200-10,00 feet). They support an abundance...

Diversity of Deep-Sea Corals

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 ."
After ocean scientists sort deep-sea coral samples into their different types, they measure and photograph the specimens.

Studying Deep-Sea Corals

What happens to deep-sea coral samples after they are collected? In this image gallery, see some of the ways ocean scientists sort, measure, photograph, and study them. Learn more in the multimedia feature "...
This species of bamboo coral, discovered in 2004 in the Pacific Northwest, has unusually long and impressive tentacles.

Newly Discovered Deep-Sea Corals

It's a new age of discovery for scientists studying deep-sea corals. In this image gallery, take a look at a handful of the many species of deep-sea corals that have been discovered by marine...

Corals in the Juan de Fuca Canyon and the Davidson Seamount

Discover some amazing corals in this footage that shows and identifies a range of deep-sea coral species from the Juan de Fuca Canyon off the Olympic coast and the Davidson Seamount, an underwater volcano...
J. Murray Roberts studies and maps the cold-water corals known as Lophelia in the North Atlantic.

Exploring the Blue Planet with J. Murray Roberts

J. Murray Roberts studies and maps the cold-water corals known as Lophelia in the North Atlantic, where the bases of some coral mounds are 2.6 million years old. Credit: Sebastian Hennige Imagine you’re an...
Amy Baco-Taylor

Amy Baco-Taylor: Passionate about Deep-Sea Corals

Dr. Amy Baco-Taylor dives to deep-sea environments to study corals and the invertebrates that live on them. Two events made me passionate about deep-sea corals . One was my first submarine dive in a...

Coral Scientist Brendan Roark: On an Urgent Mission

Dr. Brendan Roark discusses different methods of sampling deep-sea corals with undergraduate students at Texas A&M University. Credit: James LaCombe Deep-sea coral beds are true biodiversity hotspots. It’s urgent that we study these extreme...

Martha Nizinski: Hooked on Deep-Sea Corals

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. Credit: A. Howard Nine years ago I was invited...

Peter Auster: The Gee Whiz Factor

Auster gets ready to study fish predators at Gray’s Reef National Marine Sanctuary off the coast of Georgia. Credit: Courtesy Greg McFall, NOAA I still haven’t gotten beyond the ‘gee whiz’ factor of studying...

Aleutian Islands Deep-Sea Corals

In this brief video clip from NOAA, catch a glimpse of the startling beauty and diversity of life found among deep-sea corals near the Aleutian Islands in Alaska. Explore more in the multimedia feature...

Submersible Collects Deep-Sea Corals

Come along as scientist Dr. Brendan Roark narrates a submersible dive to collect and study deep-sea corals. Roark studies deep-sea corals to understand the history of the ocean and past ocean climates. Learn more...
A photo of a swimming Protanguilla palau, the newly discovered genus and species of eel

Scientists Call New Eel Species A Living Fossil

A video of the Palauan primitive cave eel ( Protanguilla palau ) swimming in the Pacific off the Republic of Palau. A Japanese research diver first discovered the new genus and species in a...