Vasily Lyubimtsev, a scientist from St. Petersburg Scientific Research Center for Ecology Safety, watches an African snail attached to sensors that measure its heartbeat and some other vital signs in ... more 
Vasily Lyubimtsev, a scientist from St. Petersburg Scientific Research Center for Ecology Safety, watches an African snail attached to sensors that measure its heartbeat and some other vital signs in the South-West Waste Water Treatment Plant in St. Petersburg, Russia, Thursday, Jan. 27, 2011. The St. Petersburg waterworks has started using six giant African snails, to monitor air pollution from an incinerator that burns sewage residue. Some environmentalists say the unusual move is just a publicity stunt aimed at distracting attention from unsafe practices at the incinerator. less 
1 / 1
Associated Press | Photo By Dmitry Lovetsky
Thu, Feb 3, 2011 5:36 AM EST