One coral alga explodes with temperature increase

Unlike its neighbors, this rare species thrives in warmer waters

When Caribbean coral reefs are in hot water, one alga takes advantage of the situation — and possibly comes to the rescue.

SOME LIKE IT HOT The heat-tolerant alga Symbiodinium trenchi, a rare species in coral reefs in the Caribbean Sea, had a population boom when the water temperature rose in 2005.