The co-authors of this text represent opposite poles of the philosophical debate on animal rights. In the first section, Cohen (philosophy, U. of Michigan) defends "speciesism" and the use of animals for food and research. In the second section, Regan (philosophy, North Carolina State U.) presents the case for animal rights. Finally, each of the authors replies to the other's arguments. Annotation c. Book News, Inc., Portland, OR (booknews.com)