Template:POTD/2017-07-03

From Wikipedia, the free encyclopedia
Rough chameleon
A rough chameleon (Trioceros rudis) near Mount Karisimbi, an inactive volcano in the Virunga Mountains in Rwanda. This specimen measures approximately 12 cm (4.7 in) long. Chameleons change color by changing the space between crystals in their skin, which changes the wavelength of light they reflect.Photograph: Charles J. Sharp