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, including temperature adaptation, mate attraction, and camouflage. But the mechanisms through which they shift their pigmentations are still somewhat of a mystery. Now, researchers have identified a crucial cell involved that might reveal whether the creatures are aware — or even in control — of the color-changing process.
