"This discovery offers the opportunity of assessing reef biodiversity, at global scale, from orbit."

Researchers are trying to restore long-spined sea urchins, which eat algae that could otherwise smother reef ecosystems and kill corals.

A new way to preserve coral, called "cryopreservation," opens a path to year-round sample collection, critical for managing ocean threats.

Disease-resistant corals may be able to "rescue" corals that are more vulnerable to stress and disease, researchers say.

Rapid action to significantly reduce emissions could delay the onset of critically warm ocean temperatures and save still healthy coral reefs.

Research shows that coral reefs' diversity of fish results from a relatively recent innovation among bony fish: biting prey from surfaces.

Researchers are using environmental DNA left behind by fish to figure out which species live secretive lives in coral reefs.

Fish have pooped on reefs forever. But as climate change warms the seas, it's become a problem for coral, researchers say.

A comparison of shark scales from a Panamanian coral reef 7,000 years ago to those today show shark populations have declined roughly three-fold.

New research suggests some corals have mangroves to thank for their ability to thrive.