Includes bibliographical references.

The nature of ethics -- Moral experts : from analysis -- About ethics : from Practical ethics -- Across the species barrier -- Preface to the 1975 edition : from Animal liberation -- All animals are equal : from Animal liberation -- Tools for research : from Animal liberation -- Down on the factory farm : from Animal liberation -- A vegetarian philosophy : from Consuming passions -- Bridging the gap -- Environmental values : from The environmental challenge -- Saving and taking human life -- Famine, affluence, and morality : from Philosophy and public affairs -- The Singer solution to world poverty : from The New York Times magazine -- What's wrong with killing? : from Practical ethics -- Taking life : the embryo and the fetus : from Practical ethics -- Prologue : from Practical ethics -- Is the sanctity of life ethic terminally ill? : from Bioethics -- Justifying infanticide : from Practical ethics -- Euthanasia : emerging from Hitler's shadow -- In place of the old ethic : from Rethinking life and death -- Ethics, self-interest, and politics -- The ultimate choice : from How are we to live? -- Living ethically : from How are we to live? -- The good life : from How are we to live? -- Darwin for the left : from Prospect -- A meaningful life : from Ethics into action : Henry Spira and the animal rights movement -- Autobiographical notes -- Animal liberation : a personal view : from Between the species -- On being silenced in Germany : from The New York Review of Books.