- Percentage Of People Who Have It: Less Than 15%
Likely one of the most useful rare genetic traits anyone could have is tetrachromacy. It is possible that many of the world’s greatest artists had some form of it. This genetic trait affects how a person sees our broad color spectrum. Normal people are born with three cones in our eye to see the spectrum but some are born with a rare fourth cone. This might not seem like a lot, but that extra cone allows them to see and specifically find the difference in up to 100 million colors.
People with three cones, normies, can only see up to 1 million colors. That is a massive difference. This trait can be seen in men, but more often affects women. In fact, it is estimated up to 12% of the world’s female population are tetrachromats. It makes you wonder… if many women are born with this fourth cone, why do we not hear about it more? Apparently, a rogue X chromosome inactivation can shut off the visibility of this fourth cone in some women.