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 ...