Humans drink alcohol because of evolution and bad fruit

January 18, 2015

The results suggested there was a single genetic mutation 10 million years ago that endowed human ancestors with an enhanced ability to break down ethanol. The scientists noted that the timing of this mutation coincided with a shift to a terrestrial lifestyle. The ability to consume ethanol may have helped human ancestors dine on rotting fruit that fell on the forest floor when other food was scarce.

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