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.
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 ...
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