Can a Chameleon Turn Any Color?
Separate camouflage myth from colorful fact and discover how chameleons really change.
Read along
Can a chameleon copy any color it sees? Not quite. Chameleons change within a range of colors created by specialized layers in their skin. Tiny structures called nanocrystals reflect different wavelengths of light. When the spacing between those crystals changes, the reflected color changes too. A chameleon may shift color when it is excited, frightened, communicating, or adjusting its body temperature. Camouflage can help, but it is not the only reason for the display. Different species have different palettes, so a chameleon cannot simply match every background like a magic paintbrush.
Inside the story
Scene by scene
Pause, look closer, and discover the science behind each part of the adventure.
Scene 0101
More than camouflage
“A chameleon brightens its colors, but it is not just trying to disappear.”
Color changes can communicate mood, warn a rival, attract a mate, or help control body temperature.
Scene 0202
Crystals under the skin
“Beneath the surface, microscopic crystals shift their spacing and reflect new colors of light.”
These guanine nanocrystals are arranged in skin cells called iridophores. Changing the spacing alters which wavelengths are reflected.
Scene 0303
A limited palette
“Even the most colorful chameleon cannot copy every pattern and color around it.”
Species, health, age, and skin structure limit the colors available. The change is biological communication, not perfect shape-shifting.
Keep wondering