Social Animal is an accessible, brief introduction to social psychology. This new edition contains vivid narrative, lively presentations of critical research and examples, all incorporating the most important new research. New topics for this edition include a social psychological analysis of what might have been going on in the minds of the September 11th terrorists, new research on catharsis and aggression, the phenomenon of benevolent sexism, and how eyewitness identification can be influenced by police interrogators. A supplementary instructor's resources and a test bank are available, as well as a companion website (which is new to accompany this ninth edition) including a virtual study guide.