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.

2 tropical storms heading for double blow to US Gulf Coast

Two tropical storms advanced across the Caribbean on Saturday as potentially historic threats to the U.S. Gulf Coast, one dumping rain on Puerto Rico, the Virgin Islands and Hispaniola while the other swept into the gulf ...

Tropical storm warning issued for Puerto Rico, Caribbean

Forecasters on Tuesday issued a tropical storm warning for Puerto Rico and other parts of the Caribbean, saying a disturbance in the Atlantic is likely to soon strengthen into a tropical storm that might reach the U.S. mainland.

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