A lionfish. | Julie Bedford/NOAA PA

Invasive Lionfish Are Ravaging Undiscovered Species in the Caribbean Sea

These voracious predators might be gobbling up unknown marine biodiversity before researchers even recognize that it exists.

A school of ember gobies near Curacao. These fish grown less than an inch (22 millimeters) long, so they're ripe prey for lionfish both as juveniles and as adults. | Carole Baldwin, Smithsonian Institution