How Fire Ants Are Taking Over North America

Aug 19, 2013

Credit Roby Edrian via Flickr

Justin Nobel wasn’t always an expert on fire ants. But ever since he was swarmed by them on a picnic in New Orleans, he has been writing about them. The search began in Mobile, Ala., and it is marching up north.

Also in this show: In a patch of eastern Ecuador's Amazon rain forest, a researcher has been looking for treehopper insects that communicate using sound; producer Sean Cole goes on the hunt to answer this question: can animals be creative?; and we have another nice piece from the Memory Palace, this one on what inspired one man to invent the telegraph.