And last summer, a Rexburg, Idaho, family was hit with the horrific realization that their new home was a breeding ground for hundreds of garter snakes, claiming that the earth around the house actually seemed to move because of how many snakes were slithering beneath its surface. Although the Rexburg case may have been a fluke, as the house may have been built on a winter snake conservatory, the Python invasion in Florida is a real issue.