Story perspectives

Chimpanzees' Daily Booze Habit Reveals Ancestral Alcohol Attraction

9/18/2025

Summary

Story summary

A UC Berkeley study reveals wild chimpanzees in Uganda and Côte d’Ivoire consume approximately 14 grams of ethanol daily from fermented fruit.
Researchers analyzed 20 fruit types, averaging 0.3% ethanol by weight.
This supports the "drunken monkey hypothesis," linking human alcohol attraction to ancestral fruit consumption.
Chimpanzees' alcohol intake may enhance social interactions and territorial behaviors.
The findings were published in Science Advances on September 17, 2025.

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Story summary

A UC Berkeley study reveals wild chimpanzees in Uganda and Côte d’Ivoire consume approximately 14 grams of ethanol daily from fermented fruit.
Researchers analyzed 20 fruit types, averaging 0.3% ethanol by weight.
This supports the "drunken monkey hypothesis," linking human alcohol attraction to ancestral fruit consumption.
Chimpanzees' alcohol intake may enhance social interactions and territorial behaviors.
The findings were published in Science Advances on September 17, 2025.