The unseasonably cold temperatures have caused Florida's manatees to huddle together for warmth. You can watch the video in the link, it is quite a sight.
http://www.suburbanfoodforthought.com/2009/02/massive-herd-of-manatee.html - via cnn
From the Upcoming ueue, submitted by stevesteve8383.
One negative side effect of swimming in the warm water near power station outlets is that it also attracts predators, so watch out sea cows!