Over millions of years, animals like the chameleon and cuttlefish, octopus and squid, have adapted color-changing abilities through natural selection. Depending on the trait, these adaptations can help organisms stay camouflaged from predators, better communicate warning signals, or even attract mates. While humans do not have the color-changing ability minus maybe a seasonal tan, researchers are suggesting we should use this biological information to develop more sophisticated color in electronic devices.