It is the American dream to own a home of one’s own. Imagine, then, discovering that your newly purchased palace is filled with denizens and squatters. This is what greeted my wife and I when we bought our house in Raleigh, North Carolina. I have since been obsessed with these “others,” and even wrote a book about them. But don’t worry about me. I like the company. You should too, or you should like some of them, anyway. All of our homes are filled with other species, and they always will be, so you might as well get to know the places they live. Here are the ten habitats in your home most filled with other species, many of them scarcely known: