Moral thinking pervades our practical lives, but where did this way of thinking come from, and what purpose does it serve? Is it to be explained by environmental pressures on our ancestors a million years ago, or is it a cultural invention of more recent origin? In The Evolution of Morality, Richard Joyce takes up these controversial questions, finding that the evidence supports an innate basis to human morality. As a moral philosopher, Joyce is interested in whether any implications follow from this hypothesis. Might the fact that the human brain has been biologically prepared by natural selection to engage in moral judgment serve in some sense to vindicate this way of thinking—staving off the threat of moral skepticism, or even undergirding some version of moral realism? Or if morality has an adaptive explanation in genetic terms—if it is, as Joyce writes, "just something that helped our ancestors make more babies"—might such an explanation actually undermine morality's central role in our lives? He carefully examines both the evolutionary "vindication of morality" and the evolutionary "debunking of morality," considering the skeptical view more seriously than have others who have treated the subject. Interdisciplinary and combining the latest results from the empirical sciences with philosophical discussion, The Evolution of Morality is one of the few books in this area written from the perspective of moral philosophy. Concise and without technical jargon, the arguments are rigorous but accessible to readers from different academic backgrounds. Joyce discusses complex issues in plain language while advocating subtle and sometimes radical views. The Evolution of Morality lays the philosophical foundations for further research into the biological understanding of human morality.

In The Evolution of Moral Progress, Allen Buchanan and Russell Powell resurrect the project of explaining moral progress. They avoid the errors of earlier attempts by drawing on a wide range of disciplines including moral and political philosophy, evolutionary biology, evolutionary psychology, anthropology, history, and sociology. Their focus is on one especially important type of moral progress: gains in inclusivity. They develop a framework to explain progress in inclusivity to also illuminate moral regression--the return to exclusivist and "tribalistic" moral beliefs and attitudes. Buchanan and Powell argue those tribalistic moral responses are not hard-wired by evolution in human nature. Rather, human beings have an evolved "adaptively plastic" capacity for both inclusion and exclusion, depending on environmental conditions. Moral progress in the dimension of inclusivity is possible, but only to the extent that human beings can create environments conducive to extending moral standing to all human beings and even to some animals. Buchanan and Powell take biological evolution seriously, but with a critical eye, while simultaneously recognizing the crucial role of culture in creating environments in which moral progress can occur. The book avoids both biological and cultural determinism. Unlike earlier theories of moral progress, their theory provides a naturalistic account that is grounded in the best empirical work, and unlike earlier theories it does not present moral progress as inevitable or as occurring in definite stages; but rather it recognizes the highly contingent and fragile character of moral improvement.

Why do people behave in moral ways in some circumstances, but not in others? In order to account fully for morality, Dennis Krebs departs from traditional approaches to morality that suggest that children acquire morals through socialization, cultural indoctrination, and moral reasoning. He suggests that such approaches can be subsumed, refined, and revised gainfully within an evolutionary framework. Relying on evolutionary theory, Krebs offers an account of how notions of morality originated in the human species. He updates Darwin's early ideas about how dispositions to obey authority, to control antisocial urges, and to behave in altruistic and cooperative ways originated and evolved, then goes on to update Darwin's account of how humans acquired a moral sense.Krebs explains why the theory of evolution does not dictate that all animals are selfish and immoral by nature. On the contrary, he argues that moral behaviors and moral judgments evolved to serve certain functions. Krebs examines theory and research on the evolution of primitive forms of prosocial conduct displayed by humans and other animals, then discusses the evolution of uniquely human prosocial behaviors. He describes how a sense of morality originated during the course of human evolution through strategic social interactions among members of small groups, and how it was expanded and refined in modern societies, explaining how this sense gives rise to culturally universal and culturally relative moral norms. Krebs argues that although humans' unique cognitive abilities endow them with the capacity to engage in sophisticated forms of moral reasoning, people rarely live up their potential in their everyday lives. Four conceptions of what it means to be a moral person are identified, with the conclusion that people are naturally inclined to meet the standards of each conception under certain conditions. The key to making the world a more moral place lies in creating environments in which good guys finish first and cheaters fail to prosper.

This interdisciplinary collection presents novel theories, includes provocative re-workings of longstanding arguments, and offers a healthy cross-pollination of ideas to the morality literature. Structures, functions, and content of morality are reconsidered as cultural, religious, and political components are added to the standard biological/environmental mix. Innovative concepts such as the Periodic Table of Ethics and evidence for morality in non-human species illuminate areas for further discussion and research. And some of the book’s contributors question premises we hold dear, such as morality as a product of reason, the existence of moral truths, and the motto “life is good.” Highlights of the coverage: The tripartite theory of Machiavellian morality: judgment, influence, and conscience as distinct moral adaptations. Prosocial morality from a biological, cultural, and developmental perspective. The containment problem and the evolutionary debunking of morality. A comparative perspective on the evolution of moral behavior. A moral guide to depravity: religiously-motivated violence and sexual selection. Game theory and the strategic logic of moral intuitions. The Evolution of Morality makes a stimulating supplementary text for advanced undergraduate and graduate courses in the evolutionary sciences, particularly in psychology, biology, anthropology, sociology, political science, religious studies, and philosophy

The Arthur M. Sackler Colloquia of the National Academy of Sciences address scientific topics of broad and current interest, cutting across the boundaries of traditional disciplines. Each year, four or five such colloquia are scheduled, typically two days in length and international in scope. Colloquia are organized by a member of the Academy, often with the assistance of an organizing committee, and feature presentations by leading scientists in the field and discussions with a hundred or more researchers with an interest in the topic. Colloquia presentations are recorded and posted on the National Academy of Sciences Sackler colloquia website and published on CD-ROM. These Colloquia are made possible by a generous gift from Mrs. Jill Sackler, in memory of her husband, Arthur M. Sackler.

One of the most provocative science books ever published—"a feast of great thinking and writing about the most profound issues there are" (The New York Times Book Review). "Fiercely intelligent, beautifully written and engrossingly original." —The New York Times Book Review Are men literally born to cheat? Does monogamy actually serve women's interests? These are among the questions that have made The Moral Animaled one of the most provocative science books in recent years. Wright unveils the genetic strategies behind everything from our sexual preferences to our office politics—as well as their implications for our moral codes and public policies. Illustrations.

Michael Tomasello offers the most detailed account to date of the evolution of human moral psychology. Based on experimental data comparing great apes and human children, he reconstructs two key evolutionary steps whereby early humans gradually became an ultra-cooperative and, eventually, a moral species capable of acting as a plural agent “we”.

In this book, economist and evolutionary game theorist Daniel Freidman demonstrates that our moral codes and our market systems, while often in conflict, are really devices evolved to achieve similar ends, and that society functions best when morals and markets are in balance with each other.

This volume includes four principal papers and a total of 43 peer commentaries on the evolutionary origins of morality.