Metachrosis refers to rapid physiological color change in animals. In this process, the color does not change through molting or long-term development, but within a short time, thanks to special cells in the skin.
An important role is played by chromatophores, which are pigment-containing cells. Some animals can change their appearance by moving pigments and by reorienting light-reflecting plates within these cells.
Metachrosis can help with camouflage, communication between individuals and even body temperature regulation. This fascinating ability can be observed in animals such as chameleons.
