Chameleon colors are WAY more complicated than we thought
are known for their ability to change color. But amazingly, what we see isn't a change in pigment. What's actually going on is a change in millions of microscopic salt crystals just under the chameleon's skin. As KQED reported , "When light hits the crystals, some wavelengths are absorbed and some are reflected. The result, to our eyes, is the beautiful rainbow of colors on the chameleon’s skin. But what we’re actually seeing is light that is bouncing off of these tiny crystals."