Zoopolis offers a new agenda for the theory and practice of animal rights. Most animal rights theory focuses on the intrinsic capacities or interests of animals, and the moral status and moral rights that these intrinsic characteristics give rise to. Zoopolis shifts the debate from the realm of moral theory and applied ethics to the realm of political theory, focusing on the relational obligations that arise from the varied ways that animals relate to human societies and institutions. Building on recent developments in the political theory of group-differentiated citizenship, Zoopolis introduces us to the genuine "political animal". It argues that different types of animals stand in different relationships to human political communities. Domesticated animals should be seen as full members of human-animal mixed communities, participating in the cooperative project of shared citizenship. Wilderness animals, by contrast, form their own sovereign communities entitled to protection against colonization, invasion, domination and other threats to self-determination. `Liminal' animals who are wild but live in the midst of human settlement (such as crows or raccoons) should be seen as "denizens", resident of our societies, but not fully included in rights and responsibilities of citizenship. To all of these animals we owe respect for their basic inviolable rights. But we inevitably and appropriately have very different relations with them, with different types of obligations. Humans and animals are inextricably bound in a complex web of relationships, and Zoopolis offers an original and profoundly affirmative vision of how to ground this complex web of relations on principles of justice and compassion.

Since 2013, an organization called the Nonhuman Rights Project has brought before the New York State courts an unusual request-asking for habeas corpus hearings to determine whether Kiko and Tommy, two captive chimpanzees, should be considered legal persons with the fundamental right to bodily liberty. While the courts have agreed that chimpanzees share emotional, behavioural, and cognitive similarities with humans, they have denied that chimpanzees are persons on superficial and sometimes conflicting grounds. Consequently, Kiko and Tommy remain confined as legal "things" with no rights. The major moral and legal question remains unanswered: are chimpanzees mere "things", as the law currently sees them, or can they be "persons" possessing fundamental rights? In Chimpanzee Rights: The Philosophers' Brief, a group of renowned philosophers considers these questions. Carefully and clearly, they examine the four lines of reasoning the courts have used to deny chimpanzee personhood: species, contract, community, and capacities. None of these, they argue, merits disqualifying chimpanzees from personhood. The authors conclude that when judges face the choice between seeing Kiko and Tommy as things and seeing them as persons-the only options under current law-they should conclude that Kiko and Tommy are persons who should therefore be protected from unlawful confinement "in keeping with the best philosophical standards of rational judgment and ethical standards of justice." Chimpanzee Rights: The Philosophers' Brief-an extended version of the amicus brief submitted to the New York Court of Appeals in Kiko's and Tommy's cases-goes to the heart of fundamental issues concerning animal rights, personhood, and the question of human and nonhuman nature. It is essential reading for anyone interested in these issues.

Since 2013, an organization called the Nonhuman Rights Project has brought before the New York State courts an unusual request-asking for habeas corpus hearings to determine whether Kiko and Tommy, two captive chimpanzees, should be considered legal persons with the fundamental right to bodily liberty. While the courts have agreed that chimpanzees share emotional, behavioural, and cognitive similarities with humans, they have denied that chimpanzees are persons on superficial and sometimes conflicting grounds. Consequently, Kiko and Tommy remain confined as legal "things" with no rights. The major moral and legal question remains unanswered: are chimpanzees mere "things", as the law currently sees them, or can they be "persons" possessing fundamental rights? In Chimpanzee Rights: The Philosophers' Brief, a group of renowned philosophers considers these questions. Carefully and clearly, they examine the four lines of reasoning the courts have used to deny chimpanzee personhood: species, contract, community, and capacities. None of these, they argue, merits disqualifying chimpanzees from personhood. The authors conclude that when judges face the choice between seeing Kiko and Tommy as things and seeing them as persons-the only options under current law-they should conclude that Kiko and Tommy are persons who should therefore be protected from unlawful confinement "in keeping with the best philosophical standards of rational judgment and ethical standards of justice." Chimpanzee Rights: The Philosophers' Brief-an extended version of the amicus brief submitted to the New York Court of Appeals in Kiko's and Tommy's cases-goes to the heart of fundamental issues concerning animal rights, personhood, and the question of human and nonhuman nature. It is essential reading for anyone interested in these issues.

Zoopolis offers a new agenda for the theory and practice of animal rights. Most animal rights theory focuses on the intrinsic capacities or interests of animals, and the moral status and moral rights that these intrinsic characteristics give rise to. Zoopolis shifts the debate from the realm of moral theory and applied ethics to the realm of political theory, focusing on the relational obligations that arise from the varied ways that animals relate to human societies and institutions. Building on recent developments in the political theory of group-differentiated citizenship, Zoopolis introduces us to the genuine "political animal". It argues that different types of animals stand in different relationships to human political communities. Domesticated animals should be seen as full members of human-animal mixed communities, participating in the cooperative project of shared citizenship. Wilderness animals, by contrast, form their own sovereign communities entitled to protection against colonization, invasion, domination and other threats to self-determination. "Liminal" animals who are wild but live in the midst of human settlement (such as crows or raccoons) should be seen as "denizens", resident of our societies, but not fully included in rights and responsibilities of citizenship. To all of these animals we owe respect for their basic inviolable rights. But we inevitably and appropriately have very different relations with them, with different types of obligations. Humans and animals are inextricably bound in a complex web of relationships, and Zoopolis offers an original and profoundly affirmative vision of how to ground this complex web of relations on principles of justice and compassion.