Meet wildlife biologist Joseph Wasilewski, one of a small number of hunters that have been licensed by the state of Florida to help eradicate pythons there. Officials believe there are tens of thousands of pythons in the wild across South Florida, many of which were released by owners when they grew too large to be kept as pets. It's Wasilewski's job to help curb that population. Pictured: He drives along a dirt road near the Tamiami Trail that cuts through the Florida Everglades.