Photonic crystals cause active colour change in chameleons

[Rufi0]

Found an article published in the Guardian today regarding a new study into how a chameleon changes colour. Thought it could be of interest

http://www.theguardian.com/science/2015/mar/10/scientists-find-out-how-chameleon-changes-colour

and the actual study

http://www.nature.com/ncomms/2015/150302/ncomms7368/full/ncomms7368.html