In my last column for The Biomimicry Manual, I mentioned the way the sea snake keeps herself clean of barnacles and algae by shedding her skin. Keeping surfaces clean is a huge challenge and a big industry. It’s a problem that comes up in nature all the time. Think about it: we have to dust to keep our home surfaces clean, but a plant can’t do that. But they need to let in maximum sunlight. They just can’t afford to be grungy! Lots of creatures deal with this same issue for all kinds of reasons. How do they do it? Can we learn better ways to stay clean from them? Read on to find out!