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 ...

Octopuses are known to sleep and to change color while they do it. Now, a study publishing March 25 in the journal iScience finds that these color changes are characteristic of two major alternating ...

A photographer finds a rare orange octopus on a beach, after a surprising increase in their numbers in the area.