Introduction One The BehaviorTwo One Second BeforeThree Seconds To Minutes BeforeFour Hours To Days BeforeFive Days To Months BeforeSix Adolescence; Or, Dude, Where's My Frontal Cortex?Seven Back To The Crib, Back To The WombEight Back To When You Were Just A Fertilized EggNine Centuries To Millennia BeforeTen The Evolution Of BehaviorEleven US Versus ThemTwelve Hierarchy, Obedience, And ResistanceThirteen Morality And Doing The Right Thing, Once You've Figured Out What That IsFourteen Feeling Someone's Pain, Understanding Someone's Pain, Alleviating Someone's PainFifteen Metaphors We Kill BySixteen Biology, The Criminal Justice System, And (Oh, Why Not?) Free willSeventeen War And PeaceEpilogue Acknowledgments Appendix 1: Neuroscience 101 Appendix 2: The Basics of Endocrinology Appendix 3: Protein Basics Glossary of Abbreviations Notes Illustration Credits Index