Image: Morpho sulkowskyi wings

Description: Iridescent colors of Morpho sulkowskyi are caused by the specific nanostructures on its wings (SEM image at the bottom)
Title: Morpho sulkowskyi wings
Credit: http://www.nature.com/ncomms/2015/150901/ncomms8959/full/ncomms8959.html
Author: Radislav A. Potyrailo et al.
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