The urine of chimpanzees contains high levels of alcohol byproduct, most likely because the chimps regularly gorge themselves on fermented fruit, according to a new paper published in the journal ...

Learn how urine tests revealed that wild chimpanzees metabolize alcohol from naturally fermented fruit, and what that could mean for human evolution.

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 ...