Teenagers with aggressive tendencies may experience faster ageing and face physical health issues later in life, according to ...

Chimpanzees have a reputation for being aggressive, while bonobos are often seen as their peaceful counterparts. This ...

Add Yahoo as a preferred source to see more of our stories on Google. How can parents distinguish typical aggressive behavior in kids from something more extreme? Experts explain. (Image: Getty; ...

Learn how comparing aggression in chimpanzees and bonobos challenges the long-held belief that chimpanzees are the more violent of our closest ape relatives.

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

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

Before we had gaslighting and narcissism, passive-aggressive behavior was considered a major faux pax. It still is and for good reason. But let's back up a second—what exactly is "passive aggression"?

Do you live or work with a young person who makes you feel like you are on an emotional roller coaster? Passive aggressive children and adolescents have a knack for behaving in socially appropriate ...

The passive aggressive student, on the other hand, sits there cool as a cucumber, having succeeded in frustrating his teachers and getting her to act out the anger he had been hiding. Therefore, ...

Passive-aggressive people often say these 11 unnerving things without even realizing how damaging they sound. If you've ever ...

New leaders that fail to deal with others’ passive-aggressive behavior inevitably fail themselves. This is even more of an issue with the increase in remote work as that makes it easier for those ...