jcolag’s Twitter Archive—№ 974

The mystery of tetrachromacy theneurosphere.com/2015/12/17/the-mystery-of-tetrachromacy-if-12-of-women-have-four-cone-types-in-their-eyes-why-do-so-few-of-them-actually-see-more-colours/?utm_content=bufferd17a9&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer