With invasive species invading Florida, it is up to animal control officers to deal with and get rid of the invading animals. Green iguanas, Nile monitors, rock pythons and Burmese pythons are among the most common species entering the Sunshine State. An elite squad of hunters, known as the Python Hunters, is fighting back. The Python Hunters are tasked with protecting the local environment by getting the invasive species under control. It's an important conservation mission and, if it fails, one of America's most-important ecosystems may never be able to recover.