Christopher Krupenye1, Alexandra G Rosati2, Brian Hare3. 1. Department of Evolutionary Anthropology, Duke University, Durham, NC 27708, USA christopher.krupenye@duke.edu. 2. Department of Human Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA. 3. Department of Evolutionary Anthropology, Duke University, Durham, NC 27708, USA Center for Cognitive Neuroscience, Duke University, Durham, NC 27708, USA.