3 ms·

I think it's because people still think that this is esoteric and fiction, although scientifically proven. Btw. only women have this ability. I believe the fun

• nijk 13y ago
  Or to classify edible berries better.
• JimJames 13y ago
  That last statement is wildly speculative. More likely is that it's because some key genes are present on the X chromosome but not on the Y chromosome. The same reason colour blindness is much more prevalent in males.
  • rohitrohit 13y ago
    The real reason is that these genes sit on the x chromosome, which makes it possible for women to be heterozygotes. If one of the receptors is mutated and color-shifted, then women will be homozygous for the wavelengths of two of the three receptors, but heterozygous for the remaining receptor, which gives her two more wavelengths to interpret. Therefore, she will have a four-dimensional color space. A male with the same mutation does not have a normal copy of the gene, so still only sees three-dimensional color, with the third dimension different from what most of the rest of us see, which manifests as a type of color blindness, since the rest of society has engineered the world for normal RGB people.