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; ...

Chimpanzees have a reputation for being aggressive, while bonobos are often seen as their peaceful counterparts. This contrast has frequently been used to explain different sides of human nature.

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

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 ...

Research scientists say kids who are persistently aggressive or defiant in their teens were likely showing signs of persistent aggressive behavior years earlier when they are toddlers. Sometimes as a ...

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 ...

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

Expert dog trainers Nicole Ellis and Michael Hill share essential safety tips for encountering aggressive dogs. Learn how to recognize subtle body language warning signs and what to do if a loose dog ...