You know those "odd socks" that happen in laundry? The ones you previously thought fell victim to some sock-eating monster who ate the other half of the pair? Well, worry no longer that your laundry room is filled with creepy villains.
Actually, what has happened is that your dirty laundry is breeding. Your socks are actually doing the nasty while they are waiting in line to be washed. The odd socks you find are not remnants of a previous pair, but rather the result of "mating socks".