By April Simpson | FLMag.com From pythons to lionfish to a few kinds of lizard, South Florida is invasive species favorite U.S. destination. That’s a problem. They were once welcomed into residential homes, but now a group of foreigners are targets of an extermination effort in South Florida. State officials agree that these “nonnatives” are silently scourging the environment. There are no reliable estimates on how many live among us – experts…