Have you ever though how the octopus is so adept at camouflage?
“Cephalopod skins use a three-layered system for quick camouflage: A top layer of pigmented chromatophores change color in response to signals from underlying muscles and nerves, a middle layer of light-reflecting cells can be turned on and off within seconds, and a bottom layer of white cells, which provide a bright backdrop to control the contrast of patterns. Octopus skin also contains photosensitive cells that detect light and patterns without relying on feedback from the eyes or brain.”
Now engineers have been able to replicate this.
