The Coral Triangle has often been compared to the Amazon rainforest, based on the sheer scale of its biodiversity. And now, ...

The oceans are always warming unevenly, with some hot spots turning into coral graveyards and others remaining resilient.

A diver glides over an expanse of bone-white coral branches, recording the fish that dart between the ghostly arms extending from the sea floor off the Thai island of Koh Tao.

A strange sea creature discovered in Japan, resembling a skeletal panda, turns out to be a new species of Clavelina tunicate.

Divers have rediscovered a rare marine species believed to have been extinct for 24 years. Last seen in 2000, Rhizopsammia wellingtoni — a “unique and well-known” black stony coral species known only ...

ANDROS, Greece (Reuters) - Like colorful corals, they swayed in the underwater current. Only these were not gorgeous natural reefs built up over centuries but plastic bags, stuck to the golden ...

Armed with scrub brushes, young scuba divers took to the waters of Florida's Alligator Reef in late July to try to help corals struggling to survive 2023's extraordinary marine heat wave.

She was diving for samples off the Florida Keys, and the thicket of elkhorn coral below looked brown, not the stark white that would indicate bleaching from the record-breaking sea temperatures in ...