The Evolution Of Trichromatic Color Vision In Humans

The evolution of trichromatic color vision in humans occurred by first switching from the ability to detect UV light to blue light between 80 and 30 million years ago and then by adding green-sensitivity(between 45-30 million years ago to the preexisting red-sensitivity in the vertebrate ancestor, according to Shozo Yokoyama et al. in PLOS Genetics. read more

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