Chapter 12 Outline

The Costs and Benefits of Interacting

Social Interactions and Cooperation

Cooperation among Unrelated Individuals

  • Reciprocity

Shared Genes and the Evolution of Altruism

  • Spite

Conflict and Cooperation in Close Quarters: The Family

  • Conflict between mates
  • Murder in the family
  • Parent-offspring conflict
  • Eusocial animals: The ultimate families

Levels of Selection

  • Selfish DNA
  • Selfish mitochondria
  • Group selection

Cooperation and Major Evolutionary Transitions