William HopkinsDivision of Psychobiology, Yerkes Primate Research Center, Emory UniversityParallels in the Ontogeny and Phylogeny of Non-Verbal Deixis in Humans and ChimpanzeesStephen NowickiDepartments of Biology, Psychology and Neurobiology, Duke UniversityDo Animals Lie? | Irene M. PepperbergDepartments of Psychology, Harvard and Brandeis Universities |