this post was submitted on 08 Jan 2024
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Today I Learned (TIL)

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[–] [email protected] 19 points 10 months ago* (last edited 10 months ago)

According to wikipedia, tetrachromacy is caused by having having both normal vision and red-green color blind genes in different chromosomes, so some of the red or green cones end up being receptive to a wavelength between red and green. Rods don't sound affected.

Health line article doesn't mention the wavelength. Got me excited that it was infrared or something