Sounding like something out of a 1950s B-movie , these giant African land snails eat their way through some surprising stuff , including stucco , plastic recycling bins , signs and more than 500 species of plants , says the Florida Department of Agriculture . Giant African elephants are threatening Florida 's Miami - Dade County , say county officials . They can grow as big as rats and could carry a potentially deadly poison . Driving over their sharps shells can puncture car tires , experts say . Experts warn against killing them and suggest calling local agriculture officials .
Giant African elephants are threatening Florida 's Miami - Dade County , say county officials . They can grow as big as rats and could carry a potentially deadly poison . Driving over their sharps shells can puncture car tires , experts say . Experts warn against killing them and suggest calling local agriculture officials .