https://www.nytimes.com/2016/08/20/science/some-turtles-see-red-better-than-you-do.html?rref=collection%2Ftimestopic%2FColor&action=click&contentCollection=timestopics®ion=stream&module=stream_unit&version=latest&contentPlacement=2&pgtype=collection
What this article is about is how birds and reptiles are able to see different shades of red better than humans can. It was referred to as the “red gene” within the article. I though it was interesting to know.