While watching a group of captive chimpanzees for her graduate research, Ena Onishi noticed something odd about the primates. "They seemed to have a tendency to urinate around the same time," said ...

Alcohol can make you woozy and nauseous when you drink too much, but why do humans love it? Wild chimpanzees may hold the answer. Chimps could be eating enough fermented fruit each day and consuming ...

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 ...

In 2014, University of California, Berkeley biologist Robert Dudley wrote a book called The Drunken Monkey: Why We Drink and Abuse Alcohol. His controversial “drunken monkey hypothesis” proposed that ...

Wild chimpanzees in the forests of Uganda and Côte d’Ivoire consume roughly two boozy beverages’ worth of overripe, fermented fruit a day, according to a new study. Chimps glug down 14 grams of ...

Al and Kamaka, two old friends who are both in their 50s, are experiencing a whole new world. Part of what's novel: females. "Right off the bat, they were just enamored with the ladies in the group," ...

Chimps may revise their beliefs in surprisingly human-like ways. Experiments showed they switched choices when presented with stronger clues, demonstrating flexible reasoning. Computational modeling ...

Researchers at the University of College London recently undertook a massive study to better understand chimps. The team analyzed data from fecal samples of 828 wild chimpanzees across 30 populations, ...

Retired research chimps from New Mexico are moving to Chimp Haven, the world's largest chimpanzee sanctuary, in Louisiana. The National Institutes of Health confirmed to the Associated Press on Friday ...