From war and politics to interpersonal strife, the continuous inability of humans to “just get along” raises a perplexing question: Why are we so often hostile, fearful of difference, and irrational ...

A sample of 4,013 participants from 24 countries were asked about aggression toward siblings and non-sibs, to determine ...

A new study suggests that anger and hatred are not merely different intensities of the same feeling but are distinct ...