Rhesus macaques in U.S. research laboratories frequently pull out their own hair, pace in tight loops, and rock back and ...

A recent study has shown how some species of monkeys have complex social hierarchies and how some are prone to taking risks ...

A new study has found that chimpanzees may be far from shy bathroomgoers. A team of researchers spent more than 600 hours studying 20 captive chimpanzees to determine that chimps may experience ...

This is an updated version of a story first published on Nov. 5, 2023. The original video can be viewed here. With extreme weather events on the rise across the globe, we were interested in a study ...

A light pulse of electricity to the brain helped monkeys shake off a schizophrenia-like pattern of rigid thinking. They ...

It is not unusual for laboratory monkeys to engage in abnormal repetitive behaviors (ARBs), such as pacing and hair-plucking.

Monkeys share many traits with humans — including our thirst for alcohol. Medical researchers were able to turn eight rhesus macaque monkeys into heavy drinkers by offering them increasing ...

Humans are far from the only primates engaging in same-sex sexual activity. A new study found instances in which 59 nonhuman primate species, including bonobos, chimpanzees and macaques, have taken ...

Source: Wald1siedel, via Wikimedia Commons. Distributed under a CC BY-SA 4.0 license. Across the animal kingdom, numerous species engage in a behavior known as anointing. This is where animals rub ...