Search

Showing results for

Language

Content type

Article Type

Topics

Tags

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

Dr. Stephen Cairns

View Image
a golden brown coral surrounded by orbs
Photo

Coral Spawning

View Image
a man snorkels at the surface near a coral reef while a woman sits on a boat and watches
Photo

Snorkeling in the Great Barrier Reef

View Image
a fuzzy brown sea anemone cover the coral
Photo

Corallimorphs

View Image
Coral showing signs of disease
Photo

Disease Takes Hold

View Image
coral polyps
Photo

Healthy Coral Polyps

View Image
Half a century after nuclear testing blasted the reefs of Bikini Atoll, corals have recovered.
Photo

Bikini Atoll Coral

View Image
A submersible’s robotic arm collects gold coral in the Hawaiian Islands. Similar specimens have been dated at more than 2,700 years old.
Photo

Collecting Gold Coral from the Deep Sea

View Image
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.
Photo

Deep-Sea Coral Sample

View Image
Two nurse sharks hover over a baited cage
Lesson Plan

Caution! Do Not Bleach

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

Gold Coral

View Image
Branching coral in naturally acidic water.
Photo

Fragile Branching Corals in Acidic Water

View Image