Book excerpt: Human beings' responsibility to and for their fellow animals has become an increasingly controversial subject. This book provides a provocative overview of the many different perspectives on the issues of animal rights and animal welfare in an easy-to-use encyclopedic format. Original contributions, from over 125 well-known philosophers, biologists, and psychologists in this field, create a well-balanced and multi-disciplinary work. Users will be able to examine critically the varied angles and arguments and gain a better understanding of the history and development of animal rights and animal protectionist movements around the world. Outstanding Reference Source Best Reference Source