NPR logo . Manatees Dying

. Manatees Dying

. Manatees Dying

Audio will be available later today.

Marine biologists are trying to figure out what's killing manatees off the Florida coastline. More than 200 manatees have died in the last four months. Researchers think the endangered creatures are dying from pneumonia. But they're racing to try to figure out what's causing the pneumonia. Sally Watt of member station WUSF reports.