New research shows chameleons actively tune nanocrystals to change their color.
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Chameleon research in Nature Communications: http://bit.ly/1FacHO2
"Photonic Crystals Cause Active Colour Change in Chameleons"

This research was carried out by Jérémie Teyssier, Suzanne V. Saenko, Dirk van der Marel & Michel C. Milinkovitch at the University of Geneva Department of Quantum Matter Physics and the Laboratory of Artificial and Natural Evolution (LANE)

Original videos of chameleons are here:
   • Chameleon colour change, Suppl Movie S1  
   • Chameleon colour change, Suppl Movie S2  
   • Chameleon colour change, Suppl Movie S4  
   • Phelsuma Colour Mechanical Pressure  

Additional details available at: http://www.lanevol.org/LANE/chameleon...
For correspondence: Michel C. Milinkovitch, Laboratory of Artificial & Natural Evolution (LANE), Dept. of Genetics & Evolution, University of Geneva, Switzerland.

The melanin spreading out video is courtesy of Richard Wheeler:
   • Fish Melanophores & Adrenaline  
http://www.richardwheeler.net

Special thanks to:
Harry, Jo, Daniella and Raquel for helping me produce and film this video it looks great thanks to you!