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Chimpanzees (Pan troglodytes) instrumentally help but do not communicate in a mutualistic cooperative task.
Bullinger, Anke F., Melis, Alicia P., Tomasello, MichaelVolume:
128
Year:
2014
Language:
english
Journal:
Journal of Comparative Psychology
DOI:
10.1037/a0035645
File:
PDF, 287 KB
english, 2014