CONTENTS -- Prologue -- ONE Darwinian Dilemmas -- Survival of the Unfittest -- Biologicizing Morality -- Calvinist Sociobiology -- A Broader View -- The Invisible Grasping Organ -- Ethology and Ethics -- Photo Essay: Closeness -- TWO Sympathy -- Warm Blood in Cold Waters -- Special Treatment of the Handicapped -- Responses to Injury and Death -- Having Broad Nails -- The Social Mirror -- Lying and Aping Apes -- Simian Sympathy -- A World without Compassion -- Photo Essay: Cognition and Empathy -- THREE Rank and Order -- A Sense of Social Regularity -- The Monkey's Behind -- Guilt and Shame -- Unruly Youngsters -- The Blushing Primate -- Two Genders, Two Moralities? -- Umbilical versus Confrontational Bonds -- Primus inter Pares -- FOUR Quid pro Quo -- The Less-than-Golden Rule -- Mobile Meals -- At the Circle's Center -- A Concept of Giving -- Testing for Reciprocity -- From Revenge to Justice -- Photo Essay: Help from a Friend -- FIVE Getting Along -- The Social Cage -- The Relational Model -- Peacemaking -- Rope Walking -- Baboon Testimony -- Draining the Behavioral Sink -- Community Concern -- Photo Essay: War and Peace -- SIX Conclusion -- What Does It Take to Be Moral? -- Floating Pyramids -- A Hole in the Head -- Notes -- Bibliography -- Acknowledgments -- Index.