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Human Enhancement Collection
Created February 8, 2017
Case Study: Animal Disenhancement & Human Enhancement
Case Study: Animal Disenhancement & Human Enhancement


Author(s) Valerie Racine
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Contributor(s) Valerie Racine Karin Ellison Joseph R. Herkert
Notes The author wishes to acknowledge the contributions of Karin Ellison, OEC - Life and Environmental Sciences Editor, and Joseph Herkert, OEC Engineering co-Editor. They provided valuable input in selecting topics and crafting the resources.
Funder NSF - This material is based upon work supported by the National Science Foundation under Award No. 1355547. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
Rights (c)Valerie Racine
Year 2016
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  • Valerie  Racine

    Posted 9 months, 1 week and 3 days ago

    Philosophers and ethicists have recently brought attention to some arguments for the moral permissibility (and, in some cases, the moral imperative) of adopting animal disenhancement technologies if (and, more likely, when) they become available. First, if our goal is to reduce overall animal suffering, and animal disenhancement would reduce or eliminate the ability to suffer in animals, then we ought to accept animal disenhancement as a moral imperative. This reasoning follows closely the logic of the utilitarian argument presented by Peter Singer to reduce animal suffering (Singer 2002). Second, from an animal rights view, Tom Regan has argued that we should not treat animals solely in an instrumental way because in doing so we violate them as “subjects of a life” (Regan 1983). But, according to this line of argument, if disenhancement entails a lack of consciousness in animals, then they cannot be “subjects of a life,” and therefore they no longer have any moral status (Thompson 2008; Palmer 2011). Other arguments have been made to support interventions to reduce animal suffering while maintaining current industrial practices in cases like using animals for scientific research. For example, Bernard Rollin has argued for the “Principle of Welfare Conservation” (Rollin 1995). According to his principle, disenhancement is morally acceptable if it did not “create animals that were more likely to experience pain, suffering, or other deprivations of welfare as a result” (Thompson 2008, 310). As is evident, both consequentialist and non-consequentialist arguments have been made to support the proposal of animal disenhancement as a moral gain.

    Conversely, there have been philosophical arguments against modifying animals, including disenhancement. For example, some philosophers have argued that disenhancement is intrinsically wrong because it compromises or violates the notion of animal dignity or species integrity, even if, with disenhancement interventions, some individuals would be better off than they otherwise might have been (Balzer, Rippe, & Schaber 2000, De Vries 2006, Heeger 2000). Others have invoked the “yuck factor” in appeal to many people’s moral intuitions about the prospects of disenhancement (Kass 1997, Midgley 2000).

    Philosopher Paul B. Thompson, the W.K. Kellogg Chair in Agricultural Food and Community Ethics at Michigan State University, has considered all of these arguments and questions why there is still the persistence of negative moral reactions to the proposal of animal disenhancement. He also suggests that a close look at the case of animal disenhancement might shed light on ethical concerns over human enhancement (Thompson 2008).

    He argues that although the idea of animal disenhancement seems rational and morally acceptable under many philosophical frameworks of animal ethics – especially given the difficulties of changing the means of production in industrial farming practices – there may be good reasons to take the widespread negative moral intuitions about disenhancement seriously. He suggests that our “yuck factor” objections to animal disenhancement may reflect our deeply-held beliefs about human virtue; that is, that disenhancement exhibits disrespect in humans. He suggests, “the entire project exhibits the vices of pride, or arrogance, of coldness, and of calculating venality” (Thompson 2008, 314).

    Interestingly, Thompson goes on to consider the implications of moral intuitions and philosophical arguments about animal disenhancement for the ethical debate about human enhancement technologies. He thinks that a re-orientation of the problem of both animal disenhancement and human enhancement in the framework of virtue ethics can highlight how we associate some social practices with good and bad moral characters.* Such a shift requires thinking critically about the assumption that it is always morally justified to alter the animal/person to fit the environment, rather than the other way around. To illustrate this idea, Thompson makes an analogy to working conditions in a factory, claiming that animal disenhancement strategies “are like offering assembly line workers an aspirin in lieu of better working conditions” (Thompson 2008, 313). His analogy illustrates the idea that the proposal to disenhance animals in factory farming so that they no longer suffer or feel pain amounts to a mere band aid solution to a larger underlying problem about how we’ve chosen to organize animal industries.

    In the analogous case, perhaps our moral intuitions about the character of a person, e.g. the factory owner, might differ in different contexts. Thompson suggests that we might think differently about the small factory owner, who is trying to maintain a livelihood while being under pressure from economic competitors and powerless to change the conditions of the market, and about the market leaders who regulate and influence the terms of competition (Thompson 2008, 315). In both cases, the conditions in the factory are the same and the factory workers are harmed in some sense, yet there seems to be a moral difference in the characters of the small factory owner and the market leaders. This moral difference might map on to what is morally problematic about the proposal to reduce animal suffering in factory farms by modifying the animals so that they can no longer experience suffering.

    Lastly, philosophers have also brought attention to the distinction between the Dumb-Down approach and the Build-Up approach to enhancements. In the Dumb-Down approach, “researchers identify the genetic or neurological basis for certain characteristics or abilities, and produce animals that lack them by removing or otherwise disabling them either genetically or through nano-mechanical intervention in cellular and neurological processes” (Thompson 2008, 308). The Build-Up approach characterizes methods in which researchers manipulate DNA and cells in vitro to build organisms without a central nervous system, but with the ability to produce the products we consume, like eggs or meat.

    Whether the distinction between these two methods presents a morally salient difference is an open question. Perhaps in the case of Dumb-Down interventions, there is a sense in which these interventions are reducing overall suffering in actual circumstances, which seems to be a morally desirable outcome. In the case of the Build-UP strategy, it seems that there is no sense in which these newly-created organisms are better or worse-off than they otherwise would have been. Yet there is a sense it which this approach facilitates the instrumentalization of disenhanced beings. If we apply this thinking to humans, say creating human-like organisms for organs and tissues, then that kind of instrumentalization may seem morally repugnant to us.

    *Virtue ethics is a moral normative framework that considers the moral character of an individual to account for moral judgments, rather than rules or guidelines about specific moral actions (as deontological and consequentialist frameworks do).
Cite this page: "Case Study: Animal Disenhancement & Human Enhancement" Online Ethics Center for Engineering 2/14/2017 OEC Accessed: Wednesday, November 22, 2017 <>