Source: Neatorama
Scientists from Yale-NUS College and the University of Fribourg have discovered a novel color-generating mechanism used by the iridescent rainbow weevil to create a spectrum of colors:
… the researchers determined that the scales of the insect were composed of a 3D photonic crystalline structure made from chitin, the main ingredient in insect exoskeletons.
They further discovered that the vibrant rainbow colors on this weevil’s scales are caused by two factors: the size of the crystal structure that makes up each scale, and the volume of chitin used to form the crystal…
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