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Published online by Cambridge University Press: 26 September 2005
steels & belpaeme (s&b) describe the role of genetic evolution in linguistic category sharing among a population of agents. we consider their methodology and conclude that, although it is plausible that genetic evolution is sufficient for such tasks, there is a bias in the presented work for such a conclusion to be reached. we suggest ways to eliminate this bias and make the model more convincingly relevant to the cognitive sciences.