The mesmerizing colors of human eyes—from deep browns to vibrant blues, subtle greens, and rare ambers—result from intricate genetic factors that influence melanin production in the iris. This same ...
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Discover the world's rarest eye colors
Gray and green eye colors are the rarest in the world. Eye color is determined by the amount of melanin in the iris, with more melanin making eyes darker. A genetic mutation 10,000 years ago caused ...
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