There is a vine that is capable of contorting the size, shape, color, orientation, and vein patterns of its leaves to match nearby foliage. It’s able to match not just one or two other species, but a whole host of them. Nobody has any clue how it knows what neighboring plants look like . 
 [ Video Link ] Collin Cunningham makes excellent educational videos about electronics. Here’s his latest one, about capacitors. (Via Make )