“Advocates of the evolutionary analogy claim that mechanisms governing scientific change are analogous to those at work in organic evolution – above all, natural selection. By referring to the works of the most influential proponents of evolutionary analogies (Toulmin, Campbell, Hull and, most notably, Kuhn) the authors discuss whether and to what extent their use of the analogy is appropriate. A careful and often illuminating perusal of the theoretical scope of the terms employed, as well as of the varying contexts within which the analogy is appealed to in contemporary debates, leads to...