Animal Behavior & CognitionbioRxiv
Short-term reciprocity in macaques social decision-making
S. Ballesta, G. Reymond, J.-R. Duhamel
This study shows that long-tailed macaques reciprocate negative social outcomes but not positive ones, suggesting social cognition involves both revenge and gratitude.
DOI 10.3389/fnbeh.2019.00225