WASHINGTON, Sept 17 (Reuters) - Ripe fruit is an integral part of the diet of wild chimpanzees, as they routinely eat an amount equaling about 10% of their body weight daily. And because this fruit ...

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.

Chimpanzees naturally ingest surprising amounts of alcohol from ripe, fermenting fruit. Careful measurements show that their typical fruit diet can equal one to two human drinks each day. This ...