Octopuses change color to camouflage themselves from predators such as stingrays and eels. Octopuses have even been observed changing color in their sleep. Octopus's color-changing ability is known as ...

Julian is a contributor and former staff writer at CNET. He's covered a range of topics, such as tech, crypto travel, sports and commerce. His past work has appeared at print and online publications, ...

Octopuses can flip from mottled rock to smooth sand in less time than it takes a human to blink, yet their eyes carry only a single visual pigment that should make them functionally colorblind. The ...