‘Drunken Monkey’ Theory: Chimps ingest alcohol daily: Study CTV NewsChimps ‘lager a day’ in ripe fruit fuels drunken monkey theory BBCWild chimpanzees consume the equivalent of 2 cocktails a day in the form of boozy fruit, research finds CBS NewsChimps consume equivalent of a beer a day in alcohol from fermented fruit The GuardianChimpanzee Consumption of Boozy Fruit May Illuminate Roots of Humanity’s Love of Alcohol Scientific American