These 30 Remarkable Body Features Are Very Rare…and Fascinating

This enables them to see more than one hundred million different colors! 

via GIPHY

For comparison, the average person can see only about one million colors.

Pretty big difference.

Tetrachromacy is more likely to affect women than men.

via GIPHY

 

One 2001 study suggests that as many as 50 percents of women and 8 percent of men may have increased chromatic discrimination compared to trichromats.