More than twenty years after its original publication, _The Case for Animal Rights _is an acknowledged classic of moral philosophy, and its author is recognized as the intellectual leader of the animal rights movement. In a new and fully considered preface, Regan responds to his critics and defends the book's revolutionary position.

While holist views such as ecocentrism have considerable intuitive appeal, arguing for the moral considerability of ecological wholes such as ecosystems has turned out to be a very difficult task. In the environmental ethics literature, individualist biocentrists have persuasively argued that individual organisms—but not ecological wholes—are properly regarded as having a good of their own . In this paper, I revisit those arguments and contend that they are fatally flawed. The paper proceeds in five parts. First, I consider some problems (...) brought about by climate change for environmental conservation strategies and argue that these problems give us good pragmatic reasons to want a better account of the welfare of ecological wholes. Second, I describe the theoretical assumptions from normative ethics that form the background of the arguments against holism. Third, I review the arguments given by individualist biocentrists in favour of individualism over holism. Fourth, I review recent work in the philosophy of biology on the units of selection problem, work in medicine on the human biome, and work in evolutionary biology on epigenetics and endogenous viral elements. I show how these developments undermine both the individualist arguments described above as well as the distinction between individuals and wholes as it has been understood by individualists. Finally, I consider five possible theoretical responses to these problems. (shrink)

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The ethical foundations of the “animal liberation” movement are compared with those of Aldo Leopold’s “land ethic,” which is taken as the paradigm for environmental ethics in general. Notwithstanding certain superficial similarities, more profound practical and theoretical differences are exposed. While only sentient animals are moraIly considerable according to the humane ethic, the land ethic includes within its purview plants as weIl as animals and even soils and waters. Nor does the land ethic prohibit the hunting, killing, and eating ofcertain (...) animal species, in sharp contrast to the humane ethic. The humane ethic rests upon Benthamic foundations: pain is taken to be the ultimate evil and it is reductive or atomistic in its moral focus. The land ethic, on the other hand, is holistic in the sense that theintegrity, stability, and beauty of the biotic community is its summum bonum. A classical antecedent of some of the formal characteristics of the land ethic is found in Plato’s moral philosophy. Special consideration is given to the differing moral status of domestic and wild animals in the humane and land ethics and to the question of moral vegetarianism. (shrink)

In this essay, we focus on metaphors in invasion biology. The emergence of this discipline went hand in hand with heated debates on the so-called exotic species issue. The dualistic stalemate in which these debates have resulted-with only two extreme positions, nativism on the one hand and cosmopolitanism on the other-is at least partly connected to the dominance of loaded political metaphors. To break up this dichotomy to create space for fruitful debate, we will explore various metaphorical frames of ecological (...) thinking and their implications for invasion biology. We will deconstruct the nativism-cosmopolitanism dichotomy by identifying various management practices, in each of which the native species issue is shaped differently. (shrink)

More than twenty years after its original publication, The Case for Animal Rights is an acknowledged classic of moral philosophy, and its author is recognized as the intellectual leader of the animal rights movement. In a new and fully considered preface, Regan responds to his critics and defends the book's revolutionary position.

This chapter focuses on another threat that ecological restoration projects are facing, namely the threat to animal welfare and flourishing. It highlights virtue ethics as a promising alternative to the traditional animal welfare and animal rights approaches and discusses three theories within virtue ethics: The theory of Alasdair MacIntyre on the relationship between virtues and practices; the ethics of care of Carol Gilligan, Joan Toronto, and many others; and the capability approach of Martha Nussbaum.

Consequentialism is the family of theories that holds that acts are morally right, wrong, or indifferent in virtue of their consequences. Less formally and more intuitively, right acts are those that produce good consequences. A consequentialist theory includes at least the following three elements: an account of the properties or states in virtue of which consequences make actions right, wrong, or indifferent; a deontic principle which specifies how or to what extent the properties or states must obtain in order for (...) an action to be right, wrong, or indifferent; and finally, a specification of what is in the domain of the deontic principle. For example, mental state and desire theories provide different accounts of the first element; maximizing and satisficing are distinct deontic principles; and Act and Rule Consequentialism specify different domains over which a deontic principle ranges. A wide range of alternative theories can be generated by modifying these three elements. For example, Hedonistic Act Utilitarianism which requires that each act maximize pleasure, and Perfectionist Lifetime Minimalism which requires that each life satisfy some minimal standard of perfection are both varieties of Consequentialsm. The conceptual space Consequentialism describes is vast, versions of Consequentialism vary radically in their plausibility, and few objections count against all versions of Consequentialism. (shrink)

On a rainy day in May 1988, a lowland gorilla named Willie B. stepped outdoors for the first time in twenty-seven years, into a new landscape immersion exhibit. Born in Africa, Willie B. had been captured by an animal collector and sold to a zoo. During the decades he spent in a cage, zoos stopped collecting animals from the wild and Americans changed the ways they wished to view animals in the zoo. Zoos developed new displays to simulate landscapes like (...) the Amazon River basin and African forests. Exhibits similar to animals' natural habitats began to replace old-fashioned animal houses. But such displays are only the most recent effort of zoos to present their audiences with an authentic experience of nature. Since the first zoological park opened in the United States in Philadelphia in 1874, zoos have promised their visitors a journey into the natural world. And for more than a century they have been popular places for education and recreation: every year more than 130 million Americans go to zoos to look at the animals and enjoy a day outdoors. The first book-length history of American zoos, Animal Attractions examines the meaning of nature in the city by looking at the ways zoos have assembled and displayed their animal collections. Situated literally and culturally in the American middle landscape, zoos are concrete expressions of longstanding tensions between wildness and civilization, science and popular culture, education and entertainment. In their efforts to promote nature appreciation, they reveal much about how our culture envisions the natural world and the human place in it and how these ideas have changed. (shrink)

We are causing species to go extinct at extraordinary rates, altering existing species in unprecedented ways and creating entirely new species. More than ever before, we require an ethic of species to guide our interactions with them. In this book, Ronald L. Sandler examines the value of species and the ethical significance of species boundaries and discusses what these mean for species preservation in the light of global climate change, species engineering and human enhancement. He argues that species possess several (...) varieties of value, but they are not sacred. It is sometimes permissible to alter species, let them go extinct and invent new ones. Philosophically rigorous, accessible and illustrated with examples drawn from contemporary science, this book will be of interest to students of philosophy, bioethics, environmental ethics and conservation biology. (shrink)

Environmentalists consider invasions by exotic species of plants and animals to be one of the most serious environmental problems we face today, as well as one of the leading causes of biodiversity loss. We argue that in order to develop and enact sensible policies, it is crucial to consider two philosophical questions: What exactly makes a species native or exotic, and What values are at stake? We focus on the first of these two questions, and offer some preliminary suggestions with (...) regard to the second. Through a series of case studies, we show that it is not always clear whether a species is native or exotic. We identify five possible criteria that could be used for distinguishing natives from exotics. Rather than identifying one of these criteria as the 'correct' one, we suggest that the concepts of 'native' and ' exotic ' function more like what some philosophers have called cluster concepts. That is, there are several characteristics that are typical of native species, and a corresponding set of characteristics that are typical of exotic species. None of these characteristics is either necessary or sufficient for identifying a species as either native or exotic. We then identify several of the values that are at stake in dealing with exotic species, and we suggest that policies need to avoid being overly simplistic. (shrink)