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How Do Chameleons Change Its Appearance

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Chameleons can quickly change their appearance in response to temperature, environment, and mood. Scientists recently identified a key factor in their ability to do this: The lizards can “tune” the distances between nanoscale crystals in their skin that reflect light, creating a spectrum of colors. The cells that form its skin play a significant roll in the color changes. This zoom represents 150 microns of a chameleon skin, about twice the diameter of a human hair. When the light hits its skin, the cells act depending on the mood of the chameleon. Crystals would be close together in a neutral state and spread out when the chameleon gets excited. This crystals would reflect out to the epidermis the warm light, changing the chameleons color

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