Cover -- Contents -- Series Foreword -- Acknowledgments -- Introduction -- I ORGANISMS AND INDIVIDUALITY -- 1 Darwinian Individuals -- 2 Defining the Individual -- 3 Species and Organisms: What Are the Problems? -- 4 Immunity and the Emergence of Individuality -- II ADAPTATION AND COMPLEX INDIVIDUALS -- 5 Adaptation of Individuals and Groups -- 6 The Unit of Adaptation, the Emergence of Individuality, and the Loss of Evolutionary Sovereignty -- 7 Adaptations in Transitions: How to Make Sense of Adaptation When Beneficiaries Emerge Simultaneously with Benefits? -- III GROUPS AND COLLECTIVES AS INDIVIDUALS -- 8 Groups, Individuals, and the Emergence of Sociality: The Case of Division of Labor -- 9 Colonies Are Individuals: Revisiting the Superorganism Revival -- 10 Superorganisms and Superindividuality: The Emergence of Individuality in a Social Insect Assemblage -- 11 What Is a Symbiotic Superindividual and How Do You Measure Its Fitness? -- Contributors -- Index.