Crawl spaces are an ideal environment for things that creep, crawl, and slither. This is just one of several snake skins we found in the crawl space. The damp, dark, undisturbed space makes a safe space for bugs, rodents, critters, and snakes. They create their own little ecosystem and food chain right under your feet. And since most people rarely go into the crawl space, they often go unnoticed until they find their way into the home.