While most corals turn ghostly white when they bleach, some turn neon purple. Scientists were baffled – until now.

Researchers have designed bionic 3D-printed corals that could help energy production and coral reef research.

Soft corals in the US Virgin Islands recovered from back-to-back hurricanes in 2017, but stony corals haven't—and one species can’t just replace the other.

Soft corals in the US Virgin Islands recovered from back-to-back hurricanes in 2017, but stony corals haven't—and one species can’t just replace the other.

Red Sea coral reefs in the Gulf of Aqaba withstand water temperature irregularities that decimate other corals. It's time to save them, say researchers.

"...it is possible to take some local actions such as reducing nutrient pollution to give reefs a chance, at least in the near term."

Underwater coral nurseries can do more than provide transplants for barren ocean areas. They can also offer a home to all kinds of threatened species.

A new portable tool can assess microbes, screen for antibiotic-resistant bacteria, and analyze algae that live in coral reefs, researchers say.

Fishing practices that selectively remove large parrotfish could put corals at risk, researchers warn.