Introduction Michael Ruse and Robert J. Richards; Part I. Historical: 1. Ethics, evolution and the a priori: Ross on Spencer and the French sociologists Hallvard Lillehammer; 2. Nietzsche's rejection of nineteenth-century evolutionary ethics Jeffrey O'Connell; 3. American pragmatism, evolution, and ethics Trevor Pearce; 4. The path to the present Abraham H. Gibson; 5. Social Darwinism and market morality: a modern-day view for evolutionary ethics Naomi Beck; Part II. For Evolutionary Ethics: 6. Darwinian evolutionary ethics Michael Ruse; 7. Human morality: from an empirical puzzle to a metaethical puzzle Richard Joyce; 8. Evolution and the epistemological challenge to moral realism Justin Horn; 9. Evolutionary naturalism and valuation Richard A. Richards; 10. Evolutionary ethics, a theory of moral realism Robert J. Richards; 11. Moral mismatch and abolition Ben Fraser; Part III. Against Debunking Arguments: 12. Moral realism and evolutionary debunking arguments Russ Shafer-Landau; 13. Why Darwinism does not debunk objective morality William J. FitzPatrick; 14. Debunking arguments: mathematics, logic, and modal security Justin Clarke-Doane; 15. Evolution and the missing link (in debunking arguments) Uri D. Leibowitz and Neil Sinclair; 16. Better than our nature? Evolution and moral realism, justification and progress Michael Vlerick; Part IV. Elaborations: 17. Darwinian ethics: biological individuality and moral relativism Frédéric Bouchard; 18. Evolutionary psychology, feminist critiques thereof, and the naturalistic fallacy Lynn Hankinson Nelson; 19. A theological evaluation of evolutionary ethics Michael L. Peterson.