Oscar Horta

Este artículo examina los presupuestos metodológicos, axiológicos y normativos en los que descansa la que posiblemente sea la obra más conocida de Peter Singer, Liberación animal. Se exploran las tensiones entre la posición normativa, de compromisos mínimos, que se intenta adoptar en esa obra, y las posiciones de Singer acerca del utilitarismo de las preferencias y el argumento de la reemplazabilidad. Se buscará elucidar en particular el modo en el que surgen tales tensiones al abordarse la consideración del agregacionismo y el interés en vivir en relación con el uso de animales no humanos. This paper examines the methodological, axiological and normative assumptions on which Animal Liberation -arguably the most poular work by Peter Singer- rests. It explores the tensions between the normative position this book intends to adopt, which tries to compromise as little as possible with any specific normative theory, and Singer's views on preference utilitarianism and the replaceability argument. In particular, the paper tries to assess the way in which such tensions arise when aggregationism and the question of the interest in living are considered in relation to the use of nonhuman animals

This article tries to define what discrimination is and to understand in particular detail its most important instances: those in which the satisfaction of interests is at stake. These cases of discrimination will be characterized in terms of deprivations of benefits. In order to describe and classify them we need to consider three different factors: the benefits of which discriminatees are deprived, the criteria according to which such benefits are denied or granted, and the justification that such deprivation of benefits may have (or lack). This definition intends to present discrimination as a concept that may be useful not only to examine certain social phenomena, but also, more widely, to ethical theory in general

Larry Temkin and Stuart Rachels have argued that the “_ is better than _” relation need not be transitive. In support of this claim, they have presented several spectrum cases towards which our actual preferences appear not to be transitive. In this paper I examine one of them, and explain that there are several solutions we may give to the problem of what is the best global option within the spectrum. I point out that these solutions do not depend on whether we reject or accept the transitivity of the “_ is better than _” relation. This reduces the strength of the challenge that spectrum cases pose to transitivity in axiology.

The argument from species overlap has been widely used in the literature on animal ethics and speciesism. However, there has been much confusion regarding what the argument proves and what it does not prove, and regarding the views it challenges. This article intends to clarify these confusions, and to show that the name most often used for this argument (‘the argument from marginal cases’) reflects and reinforces these misunderstandings. The article claims that the argument questions not only those defences of anthropocentrism that appeal to capacities believed to be typically human, but also those that appeal to special relations between humans. This means the scope of the argument is far wider than has been thought thus far. Finally, the article claims that, even if the argument cannot prove by itself that we should not disregard the interests of nonhuman animals, it provides us with strong reasons to do so, since the argument does prove that no defence of anthropocentrism appealing to non-definitional and testable criteria succeeds

According to the Internal Aspects View, the value of different outcomesdepends solely on the internal features possessed by each outcome and theinternal relations between them. This paper defends the Internal AspectsView against Larry Temkin’s defence of the Essentially Comparative View,according to which the value of different outcomes depends on what isthe alternative outcome they are compared with. The paper discusses bothperson-affecting arguments and Spectrum Arguments. The paper doesnot defend a person-affecting view over an impersonal one, but it arguesthat although there are intuitive person-affecting principles that entail anEssentially Comparative View, the intuitions that support these principlescan also be acommodated by other principles that are compatible with theInternal Aspects View. The paper also argues that the rejection of transitivityand the Internal Aspects View does not help us to solve the challengespresented by Spectrum Arguments. Despite this, the arguments presentedby Temkin do succeed in showing that, unfortunately, our intuitions arechaotic and inconsistent. The paper argues that this has metaethicalconsequences that will be unwelcome by a moral realist such as Temkin,since they challenge the idea that our intuitions may track a moral realityexisting independently of our preferences

Se sostiene de manera habitual que los animales no pueden ser considerados personas, razón por la cual no es posible efectuar una demanda en su nombre. Este artículo examina tal idea. En él se analizan en primer lugar los distintos sentidos que el término "persona" tiene en el ámbito coloquial, metafísico, moral y jurídico, y se muestra que no hay una conexión necesaria entre estos. Asimismo, se desgranan y evalúan los distintos argumentos a favor del antropocentrismo moral, concluyéndose que ninguno de ellos tiene éxito. Finalmente, se argumenta que si se continúa manteniendo la centralidad en el plano jurídico de la categoría de la personalidad, pero se excluye del alcance de esta a los animales de especies distintas a la nuestra, se incurrirá en una posición que carecerá de justificación moral.

Este trabajo defiende dos tesis. En primer lugar, sostiene que, a pesar del amplio uso de animales no humanos en la investigación, esta cuestión no ha sido tomada realmente en serio en el ámbito de la bioética. Esta afirmación es respaldada mediante un rastreo por la literatura reciente. La segunda tesis consiste en que tal desatención no está justificada. Se asume habitualmente que los intereses de los animales no humanos no son moralmente significativos, o al menos que no lo son como los de los seres humanos. Sin embargo, ninguno de los argumentos que defienden esta idea tiene éxito. Los estudios actuales en bioética manifiestan así lo que podemos llamar un prejuicio especista. Más aún, esto conlleva asimismo que el propio uso de animales no humanos como recursos resulta cuestionable

The moral consideration of nonhuman animals and the critique of speciesism have been defended by appeal to a variety of ethical theories. One of the main approaches in moral and political philosophy today from which to launch such a defense is egalitarianism, which is the view that we should aim at favoring the worse off by reducing inequality. This paper explains what egalitarianism is and shows the important practical consequences it has for nonhuman animals, both those that are exploited by humans and those in need of aid in the wild. Egalitarianism implies rejecting speciesism, and in practice it prescribes ceasing to exploit nonhuman animals as well as assisting them. Moreover, because they are worse off in comparison to humans, egalitarianism prescribes giving priority to the interests nonhuman animals. Due to this, egalitarianism gives us extra reasons to defend them beyond those entailed by other nonspeciesist approaches.

Humans often intervene in the wild for anthropocentric or environmental reasons. An example of such interventions is the reintroduction of wolves in places where they no longer live in order to create what has been called an “ecology of fear”, which is being currently discussed in places such as Scotland. In the first part of this paper I discuss the reasons for this measure and argue that they are not compatible with a nonspeciesist approach. Then, I claim that if we abandon a speciesist viewpoint we should change completely the way in which we should intervene in nature. Rather than intervening for environmental or anthropocentric reasons, we should do it in order to reduce the harms that nonhuman animals suffer. This conflicts significantly with some fundamental environmental ideals whose defence is not compatible with the consideration of the interests of nonhuman animals.

Según la concepción del daño de la muerte en función del interés relativo al momento, propuesta por Jeff McMahan, nuestro interés en vivir no viene determinado sólo por el valor de nuestra vida futura, sino también por los vínculos prudenciales que nos atan a ésta. McMahan sostiene que tales relaciones dependen de nuestra complejidad psicológica. Esta propuesta respalda algunas asunciones comunes acerca del daño de la muerte. Pero también cuestiona los planteamientos antropocéntricos acerca del valor comparativo de las vidas de los seres humanos, pues toda una serie de seres humanos (como los bebés y aquellos con diversidad funcional intelectual notable) tienen unas capacidades psicológicas inferiores a las de muchos animales no humanos. Por otra parte, no está claro que la fuerza de las relaciones prudenciales venga de hecho determinada por la complejidad psicológica. According to the Time-relative Interest Account of the harm of death, which Jeff McMahan has proposed, our interest in living is not only determined by the value of our future life, but also by the prudential ties which bind us to it. McMahan maintains that such relations depend significantly on our psychological complexity. This proposal backs up some common assumptions as regards the harm of death. But it also questions anthropocentric views regarding the comparative value of the lives of human beings, since a number of humans (such as babies and those with significant intellectual disabilities) have psychological capacities below those of many nonhuman animals. Apart from this, it is not clear whether the strength of prudential relations is actually determined by psychological complexity