1. How to be a chaste species pluralist-realist: the origins of species modes and the synapomorphic species concept

   • John S. Wilkins

   OriginalPaper Pages: 621 - 638

2. Parting with illusions in evolutionary ethics

   • David C. Lahti

   OriginalPaper Pages: 639 - 651

3. Darwin's nihilistic idea: evolution and the meaninglessness of life

   • Tamler Sommers
   • Alex Rosenberg

   OriginalPaper Pages: 653 - 668

4. On the inappropriate use of the naturalistic fallacy in evolutionary psychology

   • David Sloan Wilson
   • Eric Dietrich
   • Anne B. Clark

   OriginalPaper Pages: 669 - 681

5. A new group-selection model for the evolution of homosexuality

   • Jeff Kirby

   OriginalPaper Pages: 683 - 694

6. Adaptationism, Adaptation, and Optimality

   • Robert C. Richardson

   BookReview Pages: 695 - 713

7. The New Behaviorism

   • Kenneth Reisman

   BookReview Pages: 715 - 729

8. On Dennett and the Natural Sciences of Free Will

   • Matteo Mameli

   BookReview Pages: 731 - 742

9. Now, Would each Group Please Select a Religion

   • Roger Sansom

   BookReview Pages: 743 - 750

10. Intellectual Tour de Force

    • Iver Mysterud

    BookReview Pages: 751 - 756

11. Index of Key Words

    Other Index Pages: 757 - 758

12. Contents of Volume 18

    Other Index Pages: 759 - 762