Just a few nights under the glow of coastal lights is enough to send reef fish into a spiral of sleeplessness and aggression, and the damage reaches far deeper than their behavior.

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Probiotics has become a buzzword among nutritionists and wellness gurus ...

Until recently, fish that eat coral—corallivores—were thought to weaken reef structures, while fish that consume algae and detritus—grazers—were thought to keep reefs healthy. But scientists have ...

An international team of researchers studied the behavioral changes among butterflyfish on a series of reefs in the Indo-Pacific before and after the 2016 global mass coral bleaching event. They found ...

Coral reefs are degrading rapidly to the extent that their marine inhabitants must either adapt or die. For many animals, including reef fish, behaviour is one of the first responses to changes in ...

Environmental scientists see flora, fauna and phenomena the rest of us rarely do. In this series, we’ve invited them to share their unique photos from the field. If you’ve ever dived on a coral reef, ...

How can we boost the resilience of the world's coral reefs, which are imperiled by multiple stresses including mass bleaching events linked to climate warming? One strategy advocated by some ...