Downey and Haas Publish in PNAS

Sean Downey (Ph.D. Arizona, 2009) and W. Randall Haas (Ph.D. Arizona, 2014) are co-authors, along with Stephen J. Shennan, of a new Proceedings of the National Academy of Sciences article, “European Neolithic societies showed early warning signals of population collapse” (113(35): 9751–9756). Both alumni are at the Department of Anthropology at the University of Maryland: Dr. Downey is an assistant professor and Dr. Haas is a post-doctoral associate. Read the article here.

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