Is Speciesism Wrong by Definition?

  • François JaquetEmail author


Oscar Horta has argued that speciesism is wrong by definition. In his view, there can be no more substantive debate about the justification of speciesism than there can be about the legality of murder, for it stems from the definition of “speciesism” that speciesism is unjustified just as it stems from the definition of “murder” that murder is illegal. The present paper is a case against this conception. I distinguish two issues: one is descriptive (Is speciesism wrong by definition?) and the other normative (Should speciesism be wrong by definition?). Relying on philosophers’ use of the term, I first answer the descriptive question negatively: speciesism is a purely descriptive concept. Then, based on both its main functions in the philosophical and public debates and an analogy with racism, I answer the normative question negatively: speciesism should remain a purely descriptive concept. If I am correct, then speciesism neither is nor should be wrong by definition.


Speciesism Definition Discrimination Racism Oscar Horta 



This work was generously supported by the Swiss National Science Foundation and Montreal's Centre de recherche en éthique. I would also like to thank Frauke Albersmeier, Pablo Carnino, Florian Cova, Valéry Giroux, Oscar Horta, Angela Martin, Hichem Naar, Angie Pepper, and an anonymous reviewer for their helpful feedback on previous drafts of this paper.


  1. Arthur, J. (2007). Race, equality, and the burden of history. Cambridge: Cambridge University Press.CrossRefGoogle Scholar
  2. Cavanagh, M. (2002). Against equality of opportunity. Oxford: Oxford University Press.Google Scholar
  3. Chappell, T. D. J. (1997). In defence of speciesism. In D. S. Odeberg & J. A. Laing (Eds.), Human lives: Critical essays on consequentialist bioethics (pp. 96–108). Basingstoke: Palgrave Macmillan.CrossRefGoogle Scholar
  4. Cohen, C. (1986). The case for the use of animals in biomedical research. The New England Journal of Medicine, 315, 865–870.CrossRefGoogle Scholar
  5. Fjellstrom, R. (2002). Specifying speciesism. Environmental Values, 11, 63–74.CrossRefGoogle Scholar
  6. Garcia, J. L. (1999). Philosophical analysis and the moral concept of racism. Philosophy & social criticism, 25(5), 1–32.CrossRefGoogle Scholar
  7. Gosseries, A. (2014). What makes age discrimination special: A philosophical look at the ECJ case law. Netherlands Journal of Legal Philosophy, 43, 59.CrossRefGoogle Scholar
  8. Gray, J. A. (1990). In defence of speciesism. Behavioral and Brain Sciences, 13, 22–23.CrossRefGoogle Scholar
  9. Hare, R. M. (1997). Sorting out ethics. Oxford: Oxford University Press.Google Scholar
  10. Horta, O. (2010a). What is speciesism? Journal of Agricultural and Environmental Ethics, 23, 243–266.CrossRefGoogle Scholar
  11. Horta, O. (2010b). Discrimination in terms of moral exclusion. Theoria, 76, 314–332.CrossRefGoogle Scholar
  12. Kagan, S. (2016). What’s wrong with speciesism? Journal of Applied Philosophy, 33, 1–21.CrossRefGoogle Scholar
  13. LaFollette, H., & Shanks, N. (1996). The origin of speciesism. Philosophy, 71, 41–61.CrossRefGoogle Scholar
  14. Landis, J. R., & Koch, G. G. (1977). The measurement of observer agreement for categorical data. Biometrics, 33, 159–174.CrossRefGoogle Scholar
  15. Lippert-Rasmussen, K. (2006). The badness of discrimination. Ethical Theory and Moral Practice, 9, 167–185.CrossRefGoogle Scholar
  16. Lippert-Rasmussen, K. (2007). Discrimination. In J. Ryberg, T. S. Petersen, & C. Wolf (Eds.), New waves in applied ethics (pp. 51–72). Basingstoke: Palgrave Macmillan.Google Scholar
  17. McMahan, J. (2005). Our fellow creatures. The Journal of Ethics, 9, 353–380.CrossRefGoogle Scholar
  18. Philips, M. (1984). Racist acts and racist humor. Canadian Journal of Philosophy, 14, 75–96.CrossRefGoogle Scholar
  19. Regan, T. (1983). The case for animal rights. Berkeley: University of California Press.Google Scholar
  20. Singer, P. (1975). Animal liberation. London: Thorsons.Google Scholar
  21. Singer, P. (1978). Is racial discrimination arbitrary? Philosophia, 8, 185–203.CrossRefGoogle Scholar
  22. Singer, P. (2016). Why speciesism is wrong: A response to Kagan. Journal of Applied Philosophy, 33, 31–35.CrossRefGoogle Scholar
  23. Williams, B. (2008). The human prejudice. In A. W. Moore (Ed.), Philosophy as a humanistic discipline (pp. 135–152). Princeton: Princeton University Press.Google Scholar
  24. Wreen, M. (1984). In defense of speciesism. Ethics and Animals, 5, 4.Google Scholar
  25. Young, I. M. (1990). Justice and the politics of difference. Princeton: Princeton University Press.Google Scholar

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© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.Centre de recherche en éthiqueUniversity of MontrealMontrealCanada

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