Is there something distinctive about humanity that justifies the idea that humans have moral status while non-humans do not? Providing an answer to this question has become increasingly important among philosophers as well as those outside of philosophy who are interested in our treatment of non-human animals. For some, answering this question will enable us to better understand the nature of human beings and the proper scope of our moral obligations. Some argue that there is an answer that can distinguish (...) humans from the rest of the natural world. Many of those who accept this answer are interested in justifying certain human practices towards non-humans—practices that cause pain, discomfort, suffering, and death. This latter group expects that in answering the question in a particular way, humans will be justified in granting moral consideration to other humans that is neither required nor justified when considering non-human animals. In contrast to this view, an increasing number of philosophers have argued that while humans are different in a variety of ways from each other and other animals, these differences do not provide a philosophical defense for denying non-human animals moral consideration. What the basis of moral consideration is and what it amounts to has been the source of much disagreement. (shrink)

In Just Fodder, Milburn argues for a relational account of our duties to animals. Following Clare Palmer, he argues that, though all animals have negative rights that we have a duty not to violate, we only gain positive obligations towards animals in the contexts of our relationships with them, which can be personal or political. He argues that human beings have collective positive duties towards domesticated animals, in virtue of the kind of relationship between us established by domestication. However, when (...) it comes to wild animals, he argues that we have no such morally relevant relationships, and so we have only negative duties towards them. I argue that throughout history and even prehistory human beings have morally entangled themselves with wild animals sufficiently that we may in fact have collective positive duties towards many, if not all, wild animals. (shrink)

How should we weigh suffering against happiness? This paper highlights the existence of an argument from intuitively plausible axiological principles to the striking conclusion that in comparing different populations, there exists some depth of suffering that cannot be compensated for by any measure of well-being. In addition to a number of structural principles, the argument relies on two key premises. The first is the contrary of the so-called Reverse Repugnant Conclusion. The second is a principle according to which the addition (...) of any population of lives with positive welfare levels makes the outcome worse if accompanied by sufficiently many lives that are not worth living. I consider whether we should accept the conclusion of the argument and what we may end up committed to if we do not, illustrating the implications of the conclusions for the question of whether suffering in aggregate outweighs happiness among human and non-human animals, now and in future. GPI Working Paper No . 4-2022 . (shrink)

Every day, wild animals suffer and die from myriad natural causes. For those committed to non-speciesism, what wild animal suffering entails for us morally is a question of the utmost importance, and yet there remains significant disagreement at the level of normative theory. In this paper I argue that in situations of moral urgency environmental managers and policy makers should refer to widely-agreeable moral principles for guidance. I claim that the principles of beneficence, non-maleficence, autonomy and justice do well to (...) capture our widely-held values, and that the first three principles all support large-scale interventions in nature. I then argue that balancing these against non-maleficence will still allow for the careful consideration of interventions, although is unlikely to support lethal methods. This argument is intended to provide a reasonable starting point for theory-agnostic decision makers, and places the burden of proof on those who oppose intervention. -/- . (shrink)

This paper considers questions that small animals and AI systems raise for utilitarianism. Specifically, if these beings have more welfare than humans and other large animals, then utilitarianism implies that we should prioritize them, all else equal. This could lead to a ‘rebugnant conclusion’, according to which we should, say, create large populations of small animals rather than small populations of large animals. It could also lead to a ‘Pascal’s bugging’, according to which we should, say, prioritize large populations of (...) small animals even if they have a low chance of being sentient. I suggest that utilitarians should accept these implications in theory but might be able to avoid some of them in practice. (shrink)

On expectation, most wild animals have lives of net suffering due to naturogenic causes. Some have claimed that concern for their well-being gives us reasons to intervene in nature on their behalf. Against this, it has been said that many interventions to assist wild animals would be wrong, even if successful, because they would violate their freedom. According to the Freedom-based Approach I defend in this paper, this view is misguided. Concern for wild animal freedom does indeed gives us reasons (...) to secure these animals against control-undermining interferences, but also to intervene in nature in order to enrich their choices. (shrink)

The evolutionary process involved the suffering of quadrillions of sentient beings over millions of years. I argue that when we take this into account, then it is likely that when the first humans appeared, the world was already at an enormous axiological deficit, and that even on favorable assumptions about humanity, it is doubtful that we have overturned this deficit or ever will. Even if there’s no such deficit or we can overturn it, it remains the case that everything of (...) value associated with humanity was made possible by our evolutionary history and all that animal suffering. It can seem indecent to regard all that past suffering as having been worth it simply because it was a causal precondition for our existence. But when we consider the realistic alternatives to the way evolution in fact unfolded, there is nevertheless a conditional case for regarding past sentient suffering as a kind of necessary evil. (shrink)

The possibility of seeding other planets with life poses a tricky dilemma. On the one hand, directed panspermia might be extremely good, while, on the other, it might be extremely bad depending on what factors are taken into consideration. Therefore, we need to understand better what is ethically at stake with planetary seeding. I map out possible conditions under which humanity should spread life to other solar systems. I identify two key variables that affect the desirability of propagating life throughout (...) the galaxy. The first is axiological and depends on which value theory in environmental ethics is correct. The second is empirical and depends on whether life is common or not in our region of the universe. I also consider two ethical objections to an interplanetary life-seeding mission: the risk of interfering with indigenous life and the risk of increasing suffering in our galaxy. (shrink)

This paper is a summary of my book 'Wild Animal Ethics'.

Just as one line appears to be longer than another in an optical illusion, we can have a spontaneous moral judgment that one individual is more important than another. Sometimes such judgments can lead to moral illusions like speciesism and other kinds of discrimination. Moral illusions are persistent spontaneous judgments that violate our deepest moral values and distract us away from a rational, authentic ethic. They generate pseudo-ethics, similar to pseudoscience. The antidote against moral illusions is the ethical principle to (...) avoid unwanted arbitrariness. Speciesism involves unwanted arbitrariness, and psychological research as well as the problem of wild animal suffering demonstrate that moral illusions such as speciesism can be very persistent. (shrink)

Is the overall value of a world just the sum of values contributed by each value-bearing entity in that world? Additively separable axiologies (like total utilitarianism, prioritarianism, and critical level views) say 'yes', but non-additive axiologies (like average utilitarianism, rank-discounted utilitarianism, and variable value views) say 'no'. This distinction is practically important: additive axiologies support 'arguments from astronomical scale' which suggest (among other things) that it is overwhelmingly important for humanity to avoid premature extinction and ensure the existence of a (...) large future population, while non-additive axiologies need not. We show, however, that when there is a large enough 'background population' unaffected by our choices, a wide range of non-additive axiologies converge in their implications with some additive axiology -- for instance, average utilitarianism converges to critical-level utilitarianism and various egalitarian theories converge to prioritiarianism. We further argue that real-world background populations may be large enough to make these limit results practically significant. This means that arguments from astronomical scale, and other arguments in practical ethics that seem to presuppose additive separability, may be truth-preserving in practice whether or not we accept additive separability as a basic axiological principle. (shrink)

The most common argument against negative utilitarianism is the world destruction argument, according to which negative utilitarianism implies that if someone could kill everyone or destroy the world, it would be her duty to do so. Those making the argument often endorse some other form of consequentialism, usually traditional utilitarianism. It has been assumed that negative utilitarianism is less plausible than such other theories partly because of the world destruction argument. So, it is thought, someone who finds theories in the (...) spirit of utilitarianism attractive should not go for negative utilitarianism, but should instead pick traditional utilitarianism or some other similar theory such as prioritarianism. I argue that this is a mistake. The world destruction argument is not a reason to reject negative utilitarianism in favour of these other forms of consequentialism, because there are similar arguments against such theories that are at least as persuasive as the world destruction argument is against negative utilitarianism. (shrink)

Ng :255–285, 1995. https://doi.org/10.1007/bf00852469) models the evolutionary dynamics underlying the existence of suffering and enjoyment and concludes that there is likely to be more suffering than enjoyment in nature. In this paper, we find an error in Ng’s model that, when fixed, negates the original conclusion. Instead, the model offers only ambiguity as to whether suffering or enjoyment predominates in nature. We illustrate the dynamics around suffering and enjoyment with the most plausible parameters. In our illustration, we find surprising results: (...) the rate of failure to reproduce can improve or worsen average welfare depending on other characteristics of a species. Our illustration suggests that for organisms with more intense conscious experiences, the balance of enjoyment and suffering may lean more toward suffering. We offer some suggestions for empirical study of wild animal welfare. We conclude by noting that recent writings on wild animal welfare should be revised based on this correction to have a somewhat less pessimistic view of nature. (shrink)

In light of the extent of wild animal suffering, some philosophers have adopted the view that we should cautiously assist wild animals on a large scale. Recently, their view has come under criticism. According to one objection, even cautious intervention is unjustified because fallibility is allegedly intractable. By contrast, a second objection states that we should abandon caution and intentionally destroy habitat in order to prevent wild animals from reproducing. In my paper, I argue that intentional habitat destruction is wrong (...) because negative duties are more stringent than positive duties. However, I also argue that the possible benefits of ecological damage, combined with the excusability of unintended, unforeseeable harm, suggest that fallibility should not paralyse us. (shrink)

We know that animals are harmed in plant production. Unfortunately, though, we know very little about the scale of the problem. This matters for two reasons. First, we can’t decide how many resources to devote to the problem without a better sense of its scope. Second, this information shortage throws a wrench in arguments for veganism, since it’s always possible that a diet that contains animal products is complicit in fewer deaths than a diet that avoids them. In this paper, (...) then, we have two aims: first, we want to collect and analyze all the available information about animal death associated with plant agriculture; second, we try to show just how difficult it’s to come up with a plausible estimate of how many animals are killed by plant agriculture, and not just because of a lack of empirical information. Additionally, we show that there are significant philosophical questions associated with interpreting the available data—questions such that different answers generate dramatically different estimates of the scope of the problem. Finally, we document current trends in plant agriculture that cause little or no collateral harm to animals, trends which suggest that field animal deaths are a historically contingent problem that in future may be reduced or eliminated altogether. (shrink)

Most people believe that suffering is intrinsically bad. In conjunction with facts about our world and plausible moral principles, this yields a pro tanto obligation to reduce suffering. This is the intuitive starting point for the moral argument in favor of interventions to prevent wild animal suffering. If we accept the moral principle that we ought, pro tanto, to reduce the suffering of all sentient creatures, and we recognize the prevalence of suffering in the wild, then we seem committed to (...) the existence of such a pro tanto obligation. Of course, competing values such as the aesthetic, scientific or moral values of species, biodiversity, naturalness or wildness, might be relevant to the all-things-considered case for or against intervention. Still, many argue that, even if we were to give some weight to such values, no plausible theory could resist the conclusion that WAS is overridingly important. This article is concerned with large-scale interventions to prevent WAS and their tractability and the deep epistemic problem they raise. We concede that suffering gives us a reason to prevent it where it occurs, but we argue that the nature of ecosystems leaves us with no reason to predict that interventions would reduce, rather than exacerbate, suffering. We consider two interventions, based on gene editing technology, proposed as holding promise to prevent WAS; raise epistemic concerns about them; discuss their potential moral costs; and conclude by proposing a way forward: to justify interventions to prevent WAS, we need to develop models that predict the effects of interventions on biodiversity, ecosystem functioning, and animals’ well-being. (shrink)

Wild animal reproduction poses an important moral problem for animal rights theorists. Many wild animals give birth to large numbers of uncared-for offspring, and thus child mortality rates are far higher in nature than they are among human beings. In light of this reproductive strategy – traditionally referred to as the ‘r-strategy’ – does concern for the interests of wild animals require us to intervene in nature? In this paper, I argue that animal rights theorists should embrace fallibility-constrained interventionism: the (...) view that intervention in nature is desirable but should be constrained by our ignorance of the inner workings of ecosystems. Though authors sometimes assume that large-scale intervention requires turning nature into an enormous zoo, I suggest an alternative. With sufficient research, a new form of gene editing called CRISPR promises to one day give us the capacity to intervene without perpetually interfering with wild animals’ liberties. (shrink)

The focus of this paper is on normative ethical theories and endangered species. To be exact, I examine two theories: the theory of obligation and care ethics, and ask which is better-suited in the case of endangered species. I argue that the aretic, feminist-inspired ethics of care is well-suited in the case of companion animals, but ill-suited in the case of endangered species, especially in the case of “unlovable” species. My argument presupposes that we now live an era where human (...) disturbances to planetary ecosystems are triggering a sixth mass species extinction, and widespread interventions will be needed to save many species from extinction. (shrink)

Stephen Clark’s article The Rights of Wild Things from 1979 was the starting point for the consideration in the animal ethics literature of the so-called ‘predation problem’. Clark examines the response of David George Ritchie to Henry Stephens Salt, the first writer who has argued explicitly in favor of animal rights. Ritchie attempts to demonstrate—via reductio ad absurdum—that animals cannot have rights, because granting them rights would oblige us to protect prey animals against predators that wrongly violate their rights. This (...) article navigates the reader through the debate sparked off by Clarke’s article, with as final destination what I consider to be the best way to deal with the predation problem. I will successively discuss arguments against the predation reductio from Singer’s utilitarian approach, Regan’s deontological approach, Nussbaum’s capability approach, and Donadson and Kymlicka’s political theory of animal rights. (shrink)

With increasing attention given to wild animal welfare and ethics, it has become common to depict animals in the wild as existing in a state dominated by suffering. This assumption is now taken on board by many and frames much of the current discussion; but needs a more critical assessment, both theoretically and empirically. In this paper, we challenge the primary lines of evidence employed in support of wild animal suffering, to provide an alternative picture in which wild animals may (...) often have lives that are far more positive than is commonly assumed. Nevertheless, while it is useful to have an alternative model to challenge unexamined assumptions, our real emphasis in this paper is the need for the development of effective methods for applying animal welfare science in the wild, including new means of data collection, the ability to determine the extent and scope of welfare challenges and opportunities, and their effects on welfare. Until such methods are developed, discussions of wild animal welfare cannot go beyond trading of intuitions, which as we show here can just as easily go in either direction. (shrink)

Animal welfare science and ecology are both generally concerned with the lives of animals, however they differ in their objectives and scope; the former studies the welfare of animals considered ‘domestic’ and under the domain of humans, while the latter studies wild animals with respect to ecological processes. Each of these approaches addresses certain aspects of the lives of animals living in the world though neither, we argue, tells us important information about the welfare of wild animals. This paper argues (...) for the development of a new scientific discipline ‘welfare biology’ to address these issues and more, given the deficiencies of pre-existing life science disciplines to research the subject. Welfare biology is the study of the welfare of all living beings who have a welfare, with a value orientation toward promoting that welfare, regardless of the beings’ situation or relationship to humans and our activities. (shrink)

Journal of Social Philosophy, EarlyView.

Should we accept that different moral norms govern our treatment of human and nonhuman animals? In this paper I suggest that the answer is both yes and no. At the theoretical level of morality, a single, unified set of norms governs our treatment of all sentient beings. But at the practical level of morality, different sets of norms can govern our treatment of different groups in different contexts. And whether we accept that we should, say, respect rights or maximize utility (...) at the theoretical level, we might also accept that we should apply a relatively Kantian set of norms to our treatment of humans and a relatively utilitarian set of norms to our treatment of nonhumans in practice, with many caveats. I argue that this moderate “monist in theory, hybrid in practice” view has many advantages over fully monist or hybrid alternatives. (shrink)

Animal ethics has received a lot of attention over the last four decades. Its focus, however, has almost exclusively been on the welfare of captive animals, ignoring the vast majority of animals: those living in the wild. I suggest that this one-sided focus is unwarranted. On the empirical side, I argue that wild animals overwhelmingly outnumber captive animals, and that billions of wild animals are likely to have lives that are even more painful and distressing than those of their captive (...) counterparts. On the normative side, I argue that as long as we have duties of assistance towards humans suffering from natural causes, and we reject anthropocentrism, we also have duties of assistance towards animals suffering in the wild.Article first published online: 22 MARCH 2016. (shrink)

Is the overall value of a world just the sum of values contributed by each value-bearing entity in that world? Additively separable axiologies (like total utilitarianism, prioritarianism, and critical level views) say 'yes', but non-additive axiologies (like average utilitarianism, rank-discounted utilitarianism, and variable value views) say 'no'. This distinction appears to be practically important: among other things, additive axiologies generally assign great importance to large changes in population size, and therefore tend to strongly prioritize the long-term survival of humanity over (...) the interests of the present generation. Non-additive axiologies, on the other hand, need not assign great importance to large changes in population size. We show, however, that when there is a large enough `background population' unaffected by our choices, a wide range of non-additive axiologies converge in their implications with additive axiologies—for instance, average utilitarianism converges with critical-level utilitarianism and various egalitarian theories converge with prioritarianism. We further argue that real-world background populations may be large enough to make these limit results practically significant. This means that arguments from the scale of potential future populations for the astronomical importance of avoiding existential catastrophe, and other arguments in practical ethics that seem to presuppose additive separability, may succeed in practice whether or not we accept additive separability as a basic axiological principle. (shrink)

ABSTRACT‘Solidarity’ is a key concept in political movements and usually bears on matters of labour, health and social justice. As such, it is essential in the reproduction and transformation of communities that support their members and protect their interests. It is sometimes overlooked that interspecies solidarity already pertains with a number of domesticated animals, and that people are willing to carry substantial emotional, financial and social burdens to benefit them. There has been even more reluctance to acknowledge wild animals as (...) fellow members of our political communities with whom we might stand in solidarity. The purpose of this paper is to propose that solidaristic relations with certain wild animals are not only possible, but also already exist in some contexts. It explores three different understandings of solidarity, and in probing to what extent they can be applied to wild animals, it identifies some important different roles they can play in ‘animal politics’, and shows how they can help us reconceive our communities in less anthropocentric terms. (shrink)

Is there a moral requirement to assist wild animals suffering due to natural causes? According to the laissez-faire intuition, although we may have special duties to assist wild animals, there are no general requirements to care for them. If this view is right, then our positive duties toward wild animals can be only special, grounded in special circumstances. In this article I present the contribution argument which employs the thought that the receipt of benefits from wild animals is one such (...) kind of special circumstance. If this argument is correct, then the circle of moral agents required to assist some wild animals is significantly widened. (shrink)

Wild animals probably have net negative lives. Christine Korsgaard rejects the view that we might engineer paradise by redesigning nature and animals so that they have the best possible existences. She believes the genetic changes required would not be identity-preserving, thereby causing animals to cease to exist. I argue, first, that paradise engineering is permissible. Many harms are caused by non-sentient natural entities and processes. Moreover, sentient animals can survive modifications compatible with their psychological persistence over time. Second, we are (...) required to re-engineer nature in order to satisfy animals' right to the resources necessary for a reasonable life. (shrink)

This article is about a specific, but so far neglected peril of AI, which is that AI systems may become existential as well as causing suffering risks for nonhuman animals. The AI value alignment problem has now been acknowledged as critical for AI safety as well as very hard. However, currently it has only been attempted to align the values of AI systems with human values. It is argued here that this ought to be extended to the values of nonhuman (...) animals since it would be speciesism not to do so. The article focuses on the two subproblems—value extraction and value aggregation—discusses challenges for the integration of values of nonhuman animals and explores approaches to how AI systems could address them. (shrink)

Effective altruists call us to apply evidence-based reasoning to maximize the effectiveness of charitable giving. In particular, effective altruists assess causes in terms of their scope, neglectedness, and tractability, and then recommend devoting resources to the cause that scores best on these criteria. So far, effective altruists concerned with animal suffering have seen these criteria as supporting interventions that improve the lives of layer hens, and they now seem to think that these criteria support directing efforts toward broilers. In this (...) paper, however, we argue that the effective altruist framework commits animal advocates to focus at least much attention--if not more--on fish. (shrink)

Who owns nature? The question could be less important than reducing animal sufferings in nature. It does not matter if nature does not belong to anyone or if it belongs to someone, because in both cases there are limitations, linked with animal welfare, regarding what we should do in nature. Sentient beings have interests that we must take into account when designing environmental policies. Since neither ecosystems nor plants have interests, preserving nature is less important than reducing animal sufferings. The (...) relevant moral issue is, therefore, knowing what happens to sentient animals in nature and developing policies to reduce their sufferings. This implies that we have the moral obligation of intervening in nature with the aim of reducing animal sufferings, so conservationist environmental policies defended by ecologists are morally unacceptable. (shrink)

In this article we argue that it is reasonable to believe that normal vertebrate animals can feel pleasure, and that there is sufficient evidence for a capacity for pleasure in some invertebrates. It follows that the pleasures of animals are morally significant. We argue for that in a few steps. First, we explain why philosophers used to concentrate more on pain rather than pleasure in regard to animals. Second, we define the notion of pleasure and show how it implies to (...) non-human animals. Third we discuss whether animals are conscious beings and how they may feel pleasure. It is true that we do not know exactly how pain and pleasure feel to nonhumans, but this is also true for other humans. Even though we can give a detailed verbal description of what we feel, pains and pleasures are subjective and we do not have any certain insight into what another human is feeling. This limitation should not stop us from behaving in a way that takes into account the fact that both we and many nonhuman animals are beings who can suffer and enjoy. (shrink)

Love is a difficult emotion to define. Some suggest that it should not be intellectualized too meticulously lest its nuances be lost (Hamilton, 2006) or that it escapes analytic definitions altoget...

If many wild animals have net negative lives, then we have to consider how likely it is that the good for animals, considered as individuals, aligns with the good for species, or the climate, or the preservation of wild spaces.