Search

Showing results for

Content type

Article Type

Topics

Tags

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

Zooxanthellae and Coral Bleaching

See the Full Slideshow
What is coral? The answer is coral is an animal. This cutaway diagram of a coral polyp shows the location of its photosynthetic algae, or zooxanthellae, which coral needs to survive.
Photo

What Is Coral? A Coral Polyp and Zooxanthellae

View Image
Corals, sponges, and algae are the major components of most coral reef communities as shown in this picture.
Overview

Corals and Coral Reefs

Read the Full Overview
Colorful Christmas tree worms
Photo

A Forest of Christmas Tree Worms

View Image
This black coral is more than 4,200 years old. Named for the color of their skeletons, black corals come in many colors.
Photo

How old is black coral?

View Image
Photograph of a bristly brown and white worm, with one end pressed against a pale green coral.
Photo

Fireworm Takes on Fire Coral

View Image
On Moorea, an island in French Polynesia, researchers are striving to complete a biocode—a DNA catalog of every life form big enough to pick up with tweezers.
Overview

Scientists Catalog Life on the Island of Moorea

Read the Full Overview
Colorful fishes throng a reef in the Northwestern Hawaiian Islands.
Slideshow

Bizarre and Beautiful Coral Reef Animals

See the Full Slideshow
Bright bubblegum coral sits on a brown, hard substrate.
Article

Optimism in the Deep Sea - Connecting Corals, Museums, and Ocean Managers

Read the Full Article