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Spite: altruism's evil twin


W. L. Vickery, Dépt des sciences biologiques, Univ. du Québec à Montréal, Montréal, Québec, H9X 1J1 Canada (vickery.wiliam@uqam.ca). – J. S. Brown, Dept of Biological Sciences, 845 W. Taylor St., Univ. of Illinois at Chicago, Chicago, Il 60607, USA. – G. J. FitzGerald, The late Gerard FitzGerald wrote part of this paper while at the Dépt de biologie, Univ. Laval, Ste.-Foy, Québec, Canada.

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