Nuno Bicho received his Ph.D. in Anthropology from Southern Methodist University in 1992. He is currently an Associate Professor of Archaeology at the Universidade do Algarve, Portugal. He was Dean between 1998 and 2001 and 2005-2007. In addition, Bicho is the Director of the Center of Archaeology and Paleoecology of the University (NAP) and a researcher at the Archaeological Research Center at the University of Lisbon (UNIARQ). He specializes in Paleolithic technology and his research focuses on prehistoric costal hunter-gatherers of southern Iberia. Jonathan Haws is an Associate Professor of Anthropology at the University of Louisville. He received his Ph.D. from the University of Wisconsin-Madison. His research emphasizes a landscape approach to the Paleolithic occupation of central Portugal. Currently, he is directing a multidisciplinary project that includes a geoarchaeological survey of the Quaternary deposits of coastal Estremadura, Portugal, and the excavation of a multicomponent Upper Paleolithic cave site, Lapa do Picareiro. Loren Davis is an Associate Professor of Anthropology at Oregon State University. In addition, Davis is the Executive Director of the Keystone Archaeological Research Fund, and the Director of the Pacific Slope Archaeological Laboratory. He received his Ph.D. in Anthropology from the University of Alberta. His research focuses on the Pleistocene prehistory and geoarchaeology of western North America, with particular emphasis on the Pacific Northwest and the Baja California peninsula.