The keys are home to part of the Florida Reef system, the third largest reef in the world. But the reef is sick, and the tourists that bring this place to life might be part of the problem.

New research shows coral reef food webs are more isolated and fragile than expected, with key fish species tied to narrow ...

A study led by Associate Professor Kelton McMahon at University of Rhode Island's Graduate School of Oceanography has found that food webs on tropical reefs are more fragile than we once thought.

Visitors seemed thrilled to see Santa at the marine ecological attraction in Marathon in the Middle Keys, where people can snorkel and dive in the facility's 200,000-gallon Coral Reef tank.

Divers cement coral fragments from a coral nursery into the reef Aug. 4, 2023, near Key Biscayne, Fla. Researchers said the coral bleaching last summer was the worst in state history.