Wild chimpanzees were filmed deliberately sharing fermented, alcohol-containing fruit to bond and relax, mirroring human social drinking behavior and sparking fresh questions about primate culture and alcohol use in the wild.

Captured in Guinea-Bissau’s Cantanhez National Park, chimps were seen handing over African breadfruit with up to 0.61% alcohol, echoing human happy hour rituals. Scientists now wonder if our ancient feasting traditions and social drinking both started with these primal, fruit-fueled gatherings—a viral animal behavior story rewriting what we know about the roots of communal celebration.