A polar vortex that has hit much of the U.S. with ice and snow has dealt a glancing blow to Florida and its manatee population ... Dozens of the sea cows, which can grow up to 10 feet (3 meters ...

dropping coastal temperatures and causing the Sunshine State’s manatee population, still recovering from a mass starvation event several years ago, to seek warmer waters. Dozens of the sea cows ...