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

After University of California, Berkeley graduate student Aleksey Maro and integrative biologist Robert Dudley discovered that the boozy fruits chimpanzees eat is the equivalent of two standard ...

Chimpanzees (Pan troglodytes) are native to the forests and savannas of central and western Africa. These creatures are our closest living relatives and share approximately 98.8% of our DNA. Similar ...

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 ...

In the forests of Uganda and Côte d'Ivoire, chimps crowd into fig and plum trees, feasting on fruit that's sweet, soft and just a little boozy. A new study shows those daily snacks quietly add up to ...

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 ...

Sept. 18 (UPI) --Researchers at the University of California, Berkeley, found chimpanzees eating fermented fruit in their native habitats consume the equivalent of nearly two alcoholic drinks per day.

First-of-its-kind measurements have revealed the ethanol content in the fruits consumed by chimpanzees in their natural African habitats. The University of California, Berkeley, team detailed the ...