Scientists at UC San Diego have moved one step closer to unlocking a superpower held by some of nature's greatest "masters of disguise." Octopuses, squids, cuttlefish and other animals in the cephalopod family are well known for their ability to camouflage, changing the color of their skin to blend in with the environment. This remarkable display of mimicry is made possible by complex biological processes involving xanthommatin, a natural pigment.