1. Cooperation in animals: An evolutionary overview

   • Lee Alan Dugatkin

   OriginalPaper Pages: 459 - 476

2. Individualist and Multi-level Perspectives on Selection in Structured Populations

   • Benjamin Kerr
   • Peter Godfrey-Smith

   OriginalPaper Pages: 477 - 517

3. Will Peace Follow?

   • Lee Alan Dugatkin

   OriginalPaper Pages: 519 - 522

4. Commentary on Kerr and Godfrey-Smith

   • John Maynard Smith

   Commentary Pages: 523 - 527

5. Perspectives and Parameterizations Commentary on Benjamin Kerr and Peter Godfrey-Smith's ``Individualist and Multi-Level Perspectives on Selection in Structured Populations''

   • Elliott Sober
   • David Sloan Wilson

   OriginalPaper Pages: 529 - 537

6. Group Fitness and Multi-level Selection: Replies to Commentaries

   • Peter Godfrey-Smith
   • Benjamin Kerr

   OriginalPaper Pages: 539 - 549

7. On Price's Equation and Average Fitness

   • Benjamin Kerr
   • Peter Godfrey-Smith

   OriginalPaper Pages: 551 - 565

8. The robustness of altruism as an evolutionary strategy

   • Scott Woodcock
   • Joseph Heath

   OriginalPaper Pages: 567 - 590