Diane Roberts http://weku.fm en Manatee Scars Come From A Fight They Can't Win http://weku.fm/post/manatee-scars-come-fight-they-cant-win Spot a manatee, the friendly, charming and prehistoric marine animal common in Florida's waters, and you're likely to think they're constantly besieged by sharks or other toothy killers. Many bear heavy scars and other marks of attack. But, as essayist Diane Roberts writes, manatees have no natural predators. What's attacking them? Boat propellers. Sun, 07 Aug 2011 12:00:00 +0000 Diane Roberts 10062 at http://weku.fm