With another El Niño expected in 2026, only a short time after the last one, many reefs will not have had sufficient time to ...

The structural complexity of coral reefs creates a vibrant underwater city populated by a diverse assortment of characters. Ironically, this same complexity can impede coral recovery after ...

After two years of record-breaking ocean heat, scientists are assessing the impacts of the world’s fourth mass bleaching event on coral reefs around the globe. At least 74 countries and territories ...

A coral reef in Belize showing dead coral, living healthy elkhorn coral (Acropora palmata), both diseased and healthy symmetrical brain corals (Pseudodiploria strigosa), and a spotfin butterflyfish.

Dead elkhorn coral are seen Feb. 9 at Carysfort Reef, northeast of Key Largo, Fla. (ben edmonds/National Oceanic and Atmospheric Administration) Record hot seawater killed more than three-quarters of ...

Peering over the edge of research vessel Coral Reef II as it sailed through the Florida Keys, Shedd Aquarium postdoctoral fellow Shayle Matsuda saw white. Matsuda and a group of researchers from the ...

Antler coral can host different types of algae, sometimes resulting in differences in color. Thomas Kline / Design Pics via Getty Images As global temperatures spike to new highs and heat waves pass ...

These days, coral reefs need all the help they can get. Underwater heatwaves and pollution have taken a toll on coral, whose carbonate exoskeletons are the foundation of some of the richest ocean ...