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Comparisons with the cognition and communication of other species have long informed discussions of the origins and evolution of human communication and language. This research has often focused on similarities and differences with the linguistic code, but more recently there has been an increased focus on the social-cognitive foundations of linguistic communication. However, exactly what these comparisons tell us is not clear because the theoretical concepts used in the animal communication literature are different from those used in the corresponding literature on human communication, specifically those used in linguistic pragmatics. In this article, I bridge the gap between these two areas and in doing so specify exactly what great ape communication tells us about the origins of human communication and language. I conclude that great ape communication probably does not share the same social …