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

When people with high levels of narcissism feel ignored or excluded by others, they are more likely to lash out using specific types of passive-aggressive behavior. A recent study published in the ...

HealthDay News — Higher levels of aggression in early adolescence predict more advanced biological aging by age 30 years, according to a study published online March 5 in Health Psychology.

Asharq Al Awsat 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 ...

Do you work with a student who consistently performs at a level that is beneath his ability? Is there a child in your classroom who habitually procrastinates, predictably “forgets,” and inevitably ...

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

Passive aggressive leadership in action. As a communications coach to executives and entrepreneurs all over the world, I’ve seen the team-building challenges that passive-aggressive organizations face ...

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, ...

Add Yahoo as a preferred source to see more of our stories on Google. Passive-aggressive behavior can sometimes be hard to identify. Here are some common phrases to avoid. Halfpoint Images via Getty ...