Manatees gather in the warm water discharged from the Florida Power and Light Co.'s Riviera Beach power plant into the Intracoastal Waterway during recent cold weather. (Associated Press)

Photo by: Gary Coronado

Manatees gather in the warm water discharged from the Florida Power and Light Co.'s Riviera Beach power plant into the Intracoastal Waterway during recent cold weather. (Associated Press)