We don't just have sex to reproduce—new research suggests that using sex to manage social tension could be a trait that existed in the common ancestor of humans and apes six million years ago. Humans ...

Humans are not the only species to combine concepts to build more complex meaning, a new study found. Bonobo chimpanzees combine calls in a manner similar to how humans structure words to make phrases ...

Chimpanzees change their choices when stronger clues appear and stay the course when only weaker hints came in.

With an open mind, Goodall discovered that chimpanzees produce tools, form lasting social bonds, and pass on knowledge across ...

When people find out we study chimpanzees, they usually ask about their dark side. “You know chimpanzees kill each other, right?” or “Aren’t they the only animals besides humans that wage wars?” ...

Juvenile bonobo embraces a distressed companion during post-conflict consolation. Psychologists from Durham University, UK, observed the behaviour of 90 sanctuary-living apes to establish whether ...

How far back in evolutionary history does kissing go? Through phylogenetic analysis, an international team of scientists ...

A new study that examines how kissing evolved suggests that ape ancestors and early humans like Neanderthals probably locked ...

This valuable study shows that regions of the human auditory cortex that respond strongly to voices are also sensitive to vocalizations from closely related primate species. The study is ...

A deadly conflict between rival groups of chimpanzees in Uganda led to comprehensive victory and a bounty of territory and food — does it show why humans go to war?

Scientists suggest kissing is much older than humans. Evidence points to ancient primates sharing affectionate mouth-to-mouth ...

Primates are a group of mammals that includes humans and our close relatives, such as apes, monkeys and lemurs. Monkeys, such as capuchins and macaques; prosimians, like lemurs and tarsiers; lesser ...