Tetrachromats See More Colors Than Most People
Only a few human tetrachromats have been identified, and the ability seems to be more pronounced in those who have been exposed to many colors from a young age. It's estimated that between 2% and 12% of women are tetrachromats. One known tetrachromat, Concetta Antico, has integrated her tetrachromacy and her career—she's an artist and oil-painting instructor.
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Key Facts In This Video
Cones are the eye's color receptors, and most people have three types: blue, red, and green. (0:23)
Most humans can see about 1 million colors. (0:55)
Tetrachromats have a fourth type of cone, and can see up to 100 million colors. (1:52)