**Why humans evolved blue eyes**

“_And here comes the mystery: for no evident reason, and in an evolutionary time span as short as a few thousand years, the number of people with blue eyes proceeded to expand from one to millions._”

Bressan P (2025) Why humans evolved blue eyes. Front. Psychol. 16:1442500. doi: https://doi.org/10.3389/fpsyg.2025.1442500.

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