The question whether ethical behavior is biologically determined may refer either to thecapacity for ethics (e.i., the proclivity to judge human actions as either right or wrong), or to the moralnorms accepted by human beings for guiding their actions. My theses are: (1) that the capacity for ethics is a necessary attribute of human nature; and (2) that moral norms are products of cultural evolution, not of biological evolution.
Humans exhibits ethical behavior by nature because their biological makeup determines the presence of the three necessary, and jointly sufficient, conditions for ethical behavior: (i) the ability to anticipate the consequences of one's own actions; (ii) the ability to make value judgements; and (iii) the ability to choose between alternative courses of action. Ethical behavior came about in evolution not because it is adaptive in itself, but as a necessary consequece of man's eminent intellectual abilities, which are an attribute directly promoted by natural selection.
Since Darwin's time there have been evolutionists proposing that the norms of morality are derived from biological evolution. Sociobiologists represent the most recent and most subtle version of that proposal. The sociobiologists' argument is that human ethical norms are sociocultural correlates of behaviors fostered by biological evolution. I argue that such proposals are misguided and do not escape the naturalistic fallacy. The isomorphism between the behaviors promoted by natural selection and those sanctioned by moral norms exist only with respect to the consequences of the behaviors; the underlying causations are completely disparate.
Key wordsSociobiology evolutionary ethics ethical behavior norms of morality animal ethics
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- Alexander, R. D.: 1979,Darwinism and Human Affairs, Univ. of Washington Press, Seattle.Google Scholar
- Ardrey, R.: 1966,The Territorial Imperative, Aheneum, New York.Google Scholar
- Ayala, F. J.: 1980,Origen y Evolución del Hombre, Alianza Editorial, Madrid.Google Scholar
- Ayala, F. J.: 1982a, ‘The Evolutionary concept of Progress’, in G. A. Almondet al., (eds.),Progress and Its Discontents, Univ. of California Press, pp. 106–124. Berkeley.Google Scholar
- Ayala, F. J.: 1982b, ‘La Naturaleza Humana a la Luz de la Evolución’,Estudios Filosóficos 31, 397–441.Google Scholar
- Barash, D. P.: 1977,Sociobiology and Behavior, Elsevier, New York.Google Scholar
- Dobzhansky, Th.: 1962,Mankind Evolving, Yale Univ. Press, New Haven.Google Scholar
- Dobzhansky, Th.: 1973, ‘Ethics and Values in Biological and Cultural Evolution’,Zygon 8, 261–281.Google Scholar
- Hamilton, W. D.: 1964, ‘The Genetical Evolution of Social Behavior’,Journal of Theoretical Biology 7, 1–51.Google Scholar
- Hume, D.: (1740) 1978,Treatise of Human Nature, Oxford Univ. Press, Oxford.Google Scholar
- Huxley, J. S.: 1953,Evolution in Action, Harper, New York.Google Scholar
- Huxley, T. H. and J. S. Huxley: 1947,Touchstone for Ethics, Harper, New York.Google Scholar
- Lorenz, K.: 1963,On Aggression, Harcourt, Brace and World, New York.Google Scholar
- Moore, G. E.: 1903,Principia Ethica, Cambridge Univ. Press.Google Scholar
- Ruse, M.: 1986,Talking Darwin Seriously: A Naturalistic Approach to Philosophy, Basil Blackwell, Oxford.Google Scholar
- Ruse, M.: 1986b, ‘Evolutionary Ethics: A Phoenix Arisen’,Zygon 21, 95–112.Google Scholar
- Ruse, M., and E. O. Wilson: 1986, ‘Moral Philosophy as Applied Science’,Philosophy.Google Scholar
- Simpson, G. G.: 1949,The Meaning of Evolution, Yale University Press, New Haven.Google Scholar
- Simpson, G. G.: 1969,Biology and Man, Harcourt, Brace and World, New York.Google Scholar
- Spencer, H.: 1893,The Principles of Ethics, London.Google Scholar
- Stent, G. S., ed.: 1978,Morality as a Biological Phenomenon, Dahlem, Berlin.Google Scholar
- Waddington, C. H.: 1960,The Ethical Animal, Allen & Unwin, London.Google Scholar
- Wilson, E. O.: 1975,Sociobiology, the New Synthesis, Belknap, Cambridge.Google Scholar
- Wilson, E. O.: 1978,On Human Nature, Harvard Univ. Press, Cambridge.Google Scholar