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; ...

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 ...

In The Angry Smile: The Psychology of Passive Aggressive Behavior in Families, Schools and Workplaces, 2nd ed., we propose that the passive-aggressive student seems to derive genuine pleasure out of ...

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 ...

A study by a team of Korean psychologists paints a clear picture of what passive-aggressive behavior really means, and how you can spot this unwanted tendency in yourself and others. “In modern ...

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 ...

Babies bite. Toddlers throw tantrums. Kids play rough. Siblings might swat at each other while fighting over toys or the last popsicle. It's not uncommon for children — especially younger ones who ...

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

For decades, birdsong research focused almost exclusively on males. In many species, however, females also sing. Now a study by researchers from the University of Vienna and Anglia Ruskin University ...