It is theorized that cephalopods can see color through chromatic aberration because of the unusual shape of their pupils. They don't have cone cells like humans

It is theorized that cephalopods can see color through chromatic aberration because of the unusual shape of their pupils. They don't have cone cells like humans. http://news.berkeley.edu/2016/07/05/weird-pupils-let-octopuses-see-their-colorful-gardens/ http://news.berkeley.edu/2016/07/05/weird-pupils-let-octopus...