This fish doesn’t just see with its eyes. It also sees with its skin. Duke Today, Aug. 22, 2023. Without a mirror, it can be hard to tell if you’re blushing, or have spinach in your teeth. But one color-changing fish has evolved a clever way to keep watch on the parts of itself that lie outside its field of view — by sensing light with its skin. Picked up by The New York Times, Smithsonian Magazine, Scientific American, UPI, Inverse, Popular Science, ZME Science, The Guardian and Salon.