Gary Ellenbolt en Some Rattlesnakes Losing Their Warning Rattle In S. Dakota Transcript <p>MELISSA BLOCK, HOST: <p>Here's a sound you'd rather not hear out on a hike.<p>(SOUNDBITE OF A RATTLE)<p>BLOCK: That's a Prairie Rattlesnake from western South Dakota. Well, there's only one thing worse than a rattlesnake giving you that famous warning, one that gives you no warning at all. That's what's been happening with some rattlesnakes in South Dakota's Black Hills. Thu, 29 Aug 2013 20:51:00 +0000 Gary Ellenbolt 39758 at