There’s not much of a betting market for octopus fights. But if you wanted to wager on the outcome of a face-off between octopuses, you could get some insider information by looking at their colors.
Octopuses, like their relatives the squid and cuttlefish, are famously adept at changing the colors and patterns on their skin. Most of the time, researchers have interpreted octopus color-shifting as a way to hide, says Alaska Pacific University marine biologist David Scheel. By adjusting the