Marc Bekoff has published numerous books, including The Emotional Lives of Animals, and has provided expert commentary for many media outlets, including the New York Times, CNN, and the BBC.

Jessica Pierce has taught and written about philosophy for many years. She is the author of a number of books, including Morality Play: Case Studies in Ethics.

Animals possess a sense of morality that allows them to tell the difference between right and wrong [according to] scientists studying animal behaviour. Species ranging from mice to primates are governed by moral codes of conduct in the same way as humans. Until recently, humans were thought to be the only species to experience complex emotions and have a sense of morality. But Prof Marc Bekoff, an ecologist at University of Colorado, Boulder, believes that morals are "hard-wired" into the brains of all mammals. He has compiled evidence from around the world that shows how different species of animals appear to have an innate sense of fairness, display empathy and help other animals that are in distress. Prof Bekoff, who p resents his case in a new book Wild Justice, said: "The belief that humans have morality and animals don't is a long-standing assumption, but there is a growing amount of evidence that is showing us that this simply cannot be the case.

Telegraph, UK - May 23

From Booklist

Do animals feel empathy for each other, treat one another fairly, cooperate toward common goals, and help each other out of trouble? In short, do animals demonstrate morality? Bekoff and Pierce answer with an emphatic “yes!” in this fusion of animal behavior, animal cognition, and philosophy. The authors discuss the sense of fair play and justice in nonhuman animals. Social animals form networks of relationships, and these relationships rely on trust, reciprocity, and flexibility—just as they do in humans. Calling these behaviors morality, the authors present evidence that morality is an adaptive strategy that has evolved in multiple animal groups. Basing their argument for animal morality on published research (listed in the generous bibliography) and anecdotal evidence, the authors group moral behaviors into three clusters: cooperation, empathy, and justice, each of which is discussed in turn. A final chapter is a synthesis of moral behavior and philosophy, suggesting areas for further study and discussion. The conversational tone and numerous illustrative examples make this an excellent introduction to a new science. --Nancy Bent