Search and rescue teams in Puerto Rico are searching for an American tourist who was reported missing in the tropical ...

Puerto Rico's hurricane-battered power grid has suffered compounding crises including hurricanes and financial problems.

Rensselaer Polytechnic University biologist Bradford Lister first collected data about arthropod biomass in Puerto Rico’s Luquillo rainforest in 1976. He and coauthor Andres Garcia, a biologist at the ...

TOA BAJA, Puerto Rico — Hurricane Ernesto dropped torrential rain on Puerto Rico and knocked out power for nearly half of all customers in the U.S. territory Wednesday as it threatened to ...