Chameleon Skin Color changes due to Photonic Crystals

March 11, 2015 11:35 AM

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A number of chameleons, in particular the Panther Chameleon, have the ability to rapidly change their colors at will. This is especially seen during the times when alpha males are fighting each other or happen to be wooing the females.

The pigment cells in dermal substrates have been held to be responsible for this phenomenon. Via the use of chromatography, microscopy and spectroscopy it has been discovered that chameleons control their external colors via a shift in the guanine nanocrystals.

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