If you have not seen a snake go in or out of a hole. How do you know what a snke den looks like. My mom and dad have a semi large hole in there back part of an acre land. and I dont know if it is another kind of an animal or a snake den. How am I sopposed to know what it is? Or is the only way to know is to see a snake go in or out. Do snakes take over other animals dens or how does that work. I can take a pic of the whole or have my mom do that so I can post it later. But I am wondering what they might look like. Thank you.