This paper addresses the question of how to understand the relationship between Cultural Evolutionary Science and the social sciences, given that they coexist and both study cultural change. I argue that CES is best understood as having a unificatory or integrative role between evolutionary biology and the social sciences, and that it is best characterized as a bridge field; I describe the concept of a bridge field and how it relates to other non-reductionist accounts of unification or integration used in (...) the philosophy of science literature. (shrink)

Abstract This paper is a close textual criticism of Theodosius Dobzhansky's Genetics and the Origin of Species. It argues that the book succeeds as interdisciplinary communication by promoting polysemy. The professional goals of two scientific communities are embedded in the text in such a way that each audience reads the call for co?operative action as implicit support for their own methods.