Add Yahoo as a preferred source to see more of our stories on Google. An eye and arms of an octopus. The small dots visible around the eye are the chromatophores. The findings are the first to ...

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 ...