The fourth edition of the premier book on animal law covers a rapidly developing field that is exponentially increasing its presence in both the public eye and on the list of desired classes for law students. In the past fifteen years, the number of animal law classes in American law schools has gone from less than ten to more than one hundred, and this casebook has been used as a model for courses internationally. Animal law is, in its simplest (and broadest) sense, a combination of statutory and decisional law in which the nature?-?legal, social, or biological?-?of non-human animals is an important factor. This new edition of Animal Law: Cases and Materials contains significant reorganization and updating while continuing to present a cohesive format that touches on many areas in which animals affect legal doctrines, caselaw, and legislative direction. Because animal law is not a traditional legal field, the book is largely framed according to traditional legal headings such as tort, contract, criminal, and constitutional law. Each chapter sets out cases and commentary where animal law is developing its own doctrine. In this fourth edition, the text has been updated and several chapters reorganized and revised to provide even greater clarity than in earlier editions. An important chapter on the commercial use of animals, introduced in the third edition, has been updated with more recent cases and statutory developments covering the significant areas of agriculture and biomedical research.

Bruce A. Wagman is a partner at Schiff Hardin LLP and an adjunct professor of law at the University of California Hastings College of the Law, Stanford Law School, University of California, Berkeley, School of Law (Boalt Hall), and University of San Francisco School of Law. Sonia S. Waisman is a partner at Riedl, McCloskey & Waring LLP and an adjunct professor of law at Loyola Law School (Los Angeles). Pamela D. Frasch is Assistant Dean of the Animal Law Program at Lewis & Clark Law School and the Executive Director of the Center for Animal Law Studies at Lewis & Clark.