Scientists have created a new light-activated ink that can change color on demand. It’s made up of microbeads of different colors that rise or sink in response to different wavelengths of light so ...

We’ve long marveled at color-changing critters like squid, chameleons, cuttlefish, and others as they flash brilliant hues. Animals across species possess this ability for a suite of reasons, ...

Xanthommatin is one of the pigments that helps octopuses, cuttlefish, and squid change color. Xanthommatin used to be difficult to produce in a lab, but a new method tricks genetically modified ...