06/10/15 - Today on Topical Currents: Miami’s vast feral chicken population has become streetwise. They avoid those charged with rounding them up as adroitly as a street drug dealer. We know of our area’s enormous snake population: but now there’s also a plague of giant African snails. They spread disease. All cities show an uptick in wildlife. We speak with Tristan Donovan, who’s written the fascinating FERAL CITIES: Adventures with Animals in the Urban Jungle. That’s Topical Currents Wednesday at 1pm.