Chameleons don’t change color by blending pigments like paint — their method is far more sophisticated. They shift shades by manipulating light itself. Their skin contains special cells called iridophores, packed with tiny guanine crystals. By rearranging these crystals, chameleons can alter how their skin reflects light, changing the wavelength and producing new colors. Adjusting the spacing between the crystals lets them move seamlessly from cool greens and blues to warm yellows and reds. This