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Zoo Biology|November 28, 2018
A review of zoo-based cognitive research using touchscreen interfacesCrystal L Egelkamp, Stephen R RossBehavior Research Methods|June 28, 2018
An assessment of touchscreens for testing primate food preferences and valuationsLydia M Hopper, Crystal L Egelkamp, Mason Fidino, et al.Animals : an Open Access Journal From MDPI|March 6, 2021
A Comparative Perspective on Three Primate Species' Responses to a Pictorial Emotional Stroop TaskLydia M Hopper, Matthias Allritz, Crystal L Egelkamp, et al.Behavioural Processes|May 12, 2006
Issues of choice and control in the behaviour of a pair of captive polar bears (Ursus maritimus)Stephen R RossAmerican Journal of Physical Anthropology|December 12, 2003
Sex differences in play among western lowland gorilla (Gorilla gorilla gorilla) infants: implications for adult behavior and social structureDario Maestripieri, Stephen R RossBiology Letters|April 2, 2020
A review of research in primate sanctuariesStephen R Ross, Jesse G LeinwandZoo Biology|October 13, 2009
Influences on visitor behavior at a modern immersive zoo exhibitStephen R Ross, Katie L GillespiePeerj|October 4, 2014
The impact of atypical early histories on pet or performer chimpanzeesHani D Freeman, Stephen R RossAmerican Journal of Primatology|April 9, 2008
Chimpanzee (Pan troglodytes) birth patterns and human presence in zoological settingsKatherine E Wagner, Stephen R RossPrimates; Journal of Primatology|March 13, 2016
Daily travel distances of zoo-housed chimpanzees and gorillas: implications for welfare assessments and space requirementsStephen R Ross, Marisa A ShenderPageof 6