"When you become angry, you have to control your anger, you have to control your aggressive impulses and it's harder to do that when it's hot," Brad Bushman, a co-author of the paper and professor of ...

Is aggression part of our primate nature, wired into our systems because it helps us survive, or do we learn it from such seemingly innocent occupations as watching cartoons and wrestling matches on ...

A new study shows that one group of Galápagos yellow warblers responds to intruders more aggressively than others. It adds compelling new evidence to a theory about angry birds. Some bird species, ...