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.

Teens who frequently lash out at others may face lasting physical health consequences later in life, according to research published in the journal Health Psychology. The study found that aggressive ...

Passive aggression, like most troubling aspects of behavior, occurs on a continuum. We have identified five distinct and increasingly pathological levels of passive-aggressive behavior that tend to ...

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

Forbes contributors publish independent expert analyses and insights. Patricia writes about family law and tips for female lawyers. Aggression is defined as a form of physical or verbal behavior ...

Call it hostile cooperation, sugarcoated hostility, or compliant defiance. Call it all of the above. Passive aggression does not alternate between passive behavior and aggressive behavior, but rather ...

A new study of chimpanzee and bonobo groups at zoos reveals similar levels of aggression. However, scientists found stark sex ...

Keep calm and try omega-3. The fatty acids, available as dietary supplements via fish oil capsules and thought to help with mental and physical well-being, could also cut down on aggression, according ...

A new study reveals that behavioral isolation between populations of Bahamas mosquitofish is driven primarily by the actions of females—not just through mating choice behaviors, but also through ...

A spokesperson said the lockdown was a "precautionary measure" because of a student on the playground "exhibiting aggressive behavior." ...