Butterfly Wings Could Inspire Hue-Changing Materials (image) The Optical Society Share Print E-Mail Caption These are the wings of the three types of butterflies under study. From left to right: front views of P. peranthus, P. blumei, and P. ulysses. The rightmost panel is a side view of P. ulysses. Credit Optical Materials Express Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.