Care2: U.S. Government Plans To Air Drop Toxic Mice To Fight Snake Invasion -- Aside from concerns about the toxins entering the food chain, I'm baffled that they're trying to use "dead and decomposing" mouse scent as a lure for snakes. Snakes eat live prey. Even in captivity, it's hard to get them to eat pre-killed, and it generally had to be made as much like live as possible (wiggled about, warmed, etc).