Joe Wasilewski started his "herping" when he was a young soldier guarding a secret military base in the everglades. After that he worked at the Miami Serpentarium with owner Bill Haast, who injected himself with cobra venom regularly to build up immunity to snake bites. Today, he is an internationally renowned invasive species expert and master python hunter.  He talks about surviving venemous snake bites, his glory days of herping and the changes he has documented in the everglades ecosystem after pythons invaded.