they may not be color blind after all Spectral discrimination in color blind animals via chromatic aberration and pupil shape http://www.pnas.org/content/113/

they may not be color blind after all Spectral discrimination in color blind animals via chromatic aberration and pupil shape http://www.pnas.org/content/113/29/8206.full http://www.pnas.org/content/113/29/8206.full Weird pupils let octopuses see their colorful gardens https://news.ycombinator.com/item?id=13084534 https://news.ycombinator.com/item?id=13084534