Great apes aren't so different from humans when it comes to certain social interactions, they too enjoy making funny faces, poking one another, randomly pulling hair and other forms of teasing, ...

The stereotype of violent chimpanzees and peaceful bonobos may be wrong, according to new research comparing aggression in both apes.

(CNN) — Researchers have found a new way in which great apes are similar to humans: they tease each other. A new study by an international team of scientists has documented “playful teasing” in ...

Add Yahoo as a preferred source to see more of our stories on Google. Orangutans, chimpanzees, bonobos and gorillas all engage in different forms of playful teasing, researchers report in the journal ...

A new study shows a bonobo can track pretend juice and grapes, suggesting apes also have imagination, not only humans.

Historically considered a more peaceful species than their chimpanzee cousins, bonobos are actually just as aggressive -- but target their ire most often at males, according to a study published ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Some great apes ...

While kissing might feel like one of the most natural things in the world, this familiar behavior is quite mysterious—various animals also kiss, despite a lack of practical benefits and a real risk of ...

Not long ago, comparative psychologist Christopher Krupenye and a colleague visited the Leipzig Zoo in Germany, where both had worked on a research project several years before. The 145-year-old zoo ...

Being a class clown is something that humans likely inherited from their ape ancestors millions of years before the first banana-peel prank, a new study claims. Everyone's seen kids tease one other, ...