Scientists discover underwater mountain ranges, golden towers of coral, and never-before-seen sea creatures.

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...

In a lab at the University of Miami, there are tanks of knobby, tan-colored corals from Florida, Honduras and the Cayman Islands. They've been drafted into a sort of coral Olympics, as scientists look ...

Reef fish in different oceans often develop similar color patterns because evolution explores the same set of biological possibilities.

A coral outcrop on Australia's Great Barrier Reef. A new project led by UC Santa Barbara, including UC Davis biologist Rachael Bay, will study how coral can resist and repair itself from damage caused ...

A surprising mystery has been uncovered off the coastlines of Britain’s Caribbean territories. The first expedition revealed an underwater mountain range, a massive blue hole, and coral ...

Why does a Caribbean angelfish sometimes resemble its Indo-Pacific cousin, even though they have never lived in the same ...

In April 2019, a marine heat wave struck a coral reef on the island of Moorea in French Polynesia, killing much of the coral and the beneficial algae that colonized it. This "bleaching" event reduced ...

This story was co-published with Grist as part of their Proof of Concept video series profiling the science and scientists behind some of the environment’s most surprising research. While the Gulf of ...

NHA TRANG, Vietnam — The gentle waves off the coast of central Vietnam’s Nha Trang obscure an open secret: The life-giving coral reefs below are dying. The waters are eerily devoid of fish. The bounty ...

MIAMI-- Florida's coral reefs hit a critical point this summer as record ocean heat led to widespread coral bleaching and were blamed for destroying coral that had been part of a seven-year reef ...