Do animals have rights and, if so, what exactly are they? Further, how do these rights relate to human rights? These questions have long bedeviled scientists, philosophers, and animal advocates and today remain as contested as ever. Combining the writings of leading academics and activists such as Peter Singer and Michael W. Fox, this anthology examines the development of animal rights discourse over the past quarter century to anticipate the future of the debate. Touching on every aspect of human-animal relations, from agriculture and animal experimentation to the animal rights movement in the United States and abroad, the contributors both question and affirm the utility of the concept of rights. Informing this volume is the belief that, regardless of where one stands on the issues of animal rights, it is simply indisputable that how we perceive and treat animals is fundamentally and inextricably related to how we define ourselves.