They say that a mouse can squeeze through a crack in the wall that is the diameter of a pencil. What else could crawl though when the size of the crack is even larger. Could that strange sound in your home actually be coming from something burrowing its way into your home? Animals are attracted by the warmth inside when the weather turns cold. You can never seal up every crevice, but make sure you don’t have a space that’s an invitation to scavengers.