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Author (up) Title Year Publication Serial Volume Pages
Hopper, L.M.; Price, S.A.; Freeman, H.D.; Lambeth, S.P.; Schapiro, S.J.; Kendal, R.L. Influence of personality, age, sex, and estrous state on chimpanzee problem-solving success 2013 Animal Cognition 5932 17 835-847
Russell, J.L.; Braccini, S.; Buehler, N.; Kachin, M.J.; Schapiro, S.J.; Hopkins, W.D. Chimpanzee (Pan troglodytes) intentional communication is not contingent upon food 2005 Animal Cognition 2491 8 263-272