Is this color-changing octopus dreaming?
New footage of a sleeping octopus rapidly changing its colors has scientists wondering if cephalopods are also capable of dreaming.
The footage is from the upcoming PBS program - "Octopus:Making Contact."
In it a marine biologist suggests the animal's color ma correspond with its dreams.
Octopuses often change their skin color to evade predators or when hunting.
However, the biologist says a color change this rapid is something he's never seen before.
"Octopus Making Contact" premieres October 2 on PBS.