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TIL Tetrachromacy exists in humans.
It's actually the same exact gene as the colorblindness gene, except it manifests as tetrachromacy in females while manifesting as colorblindness in males. If you have any colorblind people in your family, chances are you also have tetrachromats in your family too.
It's a rather double-edged sword, especially as an artist. For example, you lose a little of your natural appreciation of differing shades, and it doesn't transfer over to technology, so a picture of a bird you see on a device is going to have less color than the same bird if it were right in front of you. Personally I could do without the extra colors.