A sleeping octopus named Heidi cycles through rippling colors and shifting skin patterns while completely unconscious, and ...

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 ...

Forbes contributors publish independent expert analyses and insights. GrrlScientist writes about evolution, ecology, behavior and health. You might not realize this, but quickly changing colors, as ...

They change shape and color, and squirt ink. But they also will return your gaze, "as if they're scrutinizing you." ...

A pair of biologists at Walla Walla University, in the U.S., have developed a way to calculate the energy costs for certain types of animals with color-changing abilities. In their study published in ...

A video of an octopus changing colors while it sleeps is raising a lot of questions about the mysterious sea creatures. A video of an octopus changing colors while it sleeps is raising a lot of ...

With its eight legs wrapped around itself as if in a hug and its eye pupils narrowed to a slit, the octopus breathes evenly, its body a uniform whitish gray. Moments later it begins to change color -- ...

The veined octopus carries a portable suit of armor across the seafloor on two walking arms, but what surprises scientists ...

A research team in South Korea has developed a soft robot named Octoid that can mimic the movement and behavior of an octopus in its natural habitat. The robot’s “triple-in-one” system enables it to ...

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 ...