Wild chimpanzees across multiple African field sites regularly consume ethanol through ripe and fermented fruit, absorbing enough alcohol to register in their urine and potentially shedding light on ...

Chimpanzees could be consuming the equivalent of a beer and half a day from eating alcoholic fruits, according to the first estimates of wild chimp alcohol intake. By virtue of their fruit-filled ...

For 11 days in late summer 2025, Aleksey Maro found himself in the Ugandan rainforest, doing whatever he could to collect chimpanzee urine. "The most consistent, predictable time is in the morning.

Ever wonder why people are so drawn to alcohol? Where does that attraction come from? Science reporter Ari Daniel says perhaps we should look to our primate relatives. ARI DANIEL, BYLINE: Late last ...

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Aleksey Maro knows far more than he cares to know about the urination habits of chimpanzees. But if you want to measure the alcohol intake of chimps in a Ugandan rain forest, where a breathalyzer is ...

For the earlier study, Maro had collected samples of the many types of fruit chimps are known to eat. He measured the ethanol concentration within the fruit pulp and estimated how much alcohol an ...

Researchers collected and analyzed urine from chimpanzees in a Ugandan forest after they'd eaten fermented fruit to determine how much alcohol they'd consumed. (Sharifah Namaganda) For 11 days in late ...