The Indonesian mimic octopus is able to camouflage itself from predators by blending into the background  Sometimes, though, even when a predator is nearby, the mimic octopus takes on a color pattern that is not present in the immediate environment
A marine biologist of cephalopods claims that this behavior is a sign of an octopus engaging in play, meaning that the behavior does not confer any specific advantage
The Indonesian mimic octopus engages in other forms of behavior that seem to serve no purpose, yet several marine biologists are reluctant to describe such behavior as play.