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Journal of Comparative Psychology (Washington, D.C. : 1983)|December 9, 2004
Do dogs (Canis familiaris) understand invisible displacement?Emma Collier-Baker, Joanne M Davis, Thomas SuddendorfJournal of Applied Animal Welfare Science : JAAWS|September 25, 2010
A case study of orangutan and siamang behavior within a mixed-species zoo exhibitElissa L Pearson, Joanne M Davis, Carla A LitchfieldAnimal Cognition|September 16, 2005
Do chimpanzees (Pan troglodytes) understand single invisible displacement?Emma Collier-Baker, Joanne M Davis, Mark Nielsen, et al.Animal Cognition|August 24, 2004
Imitation recognition in a captive chimpanzee (Pan troglodytes)Mark Nielsen, Emma Collier-Baker, Joanne M Davis, et al.Pageof 1