Mystery solved: Scientists ID Caribbean sea urchin killer

Last year, sea urchins in the Caribbean started getting sick—shedding their spines, dying off and throwing reef ecosystems into chaos. Now, scientists think they've caught the killer in this marine murder mystery.

Coral bleaching causing 'unnecessary' fish fights

Fish that have lost food due to mass coral bleaching are getting into more unnecessary fights, causing them to expend precious energy and potentially threatening their survival, new research said Wednesday.

Sparkling fish, murky methods: the global aquarium trade

After diving into the warm sea off the coast of northern Bali, Indonesia, Made Partiana hovers above a bed of coral, holding his breath and scanning for flashes of movement. Hours later, exhausted, he returns to a rocky beach, ...

How the Earth is changing across different ecosystems

Climate change is a complicated phenomenon with a variety of both abrupt and gradual effects that scientists are working hard to uncover. Emerging findings on how various ecosystems are responding to a changing climate, stemming ...

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