Blue eyes emerging stands out as a striking example of a genetic mutation that spread across populations. Traced back to a single individual living between 6,000 and 8,000 BCE in the region near the Black Sea. The mutation involved is a specific change in the OCA2 gene, which alters the way melanin is produced in the iris. Originally, all humans had brown eyes, but this mutation led to the reduction of melanin in the iris, resulting in blue eyes.
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Phenotype Variation: Blue Eyes
By Michael Alan Prestwood
Fri 12 Apr 2024
Published 2 years ago.
Updated 2 years ago.
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Phenotype Variation: Blue Eyes
8000 BCE
Genetic Mutation from the Neolithic Era
— map / TST —
Michael Alan Prestwood
Author & Natural Philosopher
Author & Natural Philosopher
Prestwood writes on science-first philosophy, with particular attention to the convergence of disciplines. Drawing on his TST Framework, his work emphasizes rational inquiry grounded in empirical observation while engaging questions at the edges of established knowledge. With TouchstoneTruth positioned as a living touchstone, this work aims to contribute reliable, evolving analysis in an emerging AI era where the credibility of information is increasingly contested.
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