Stefanie Keupp

Social evaluation of skilfulness in Tonkean macaques (Macaca tonkeana) and brown capuchins (Sapajus apella)

This study examines whether Tonkean macaques and brown capuchins can evaluate others' skilfulness by observing human actors opening food containers, finding they use social information about skill in their decisions.

Tonkean macaques do not prefer the helper or the hinderer in the hill paradigm

The study tests Tonkean macaques' preference between helper and hinderer agents in the hill paradigm and finds no preference, suggesting low attention to stimuli.

Increased female competition for males with enhanced foraging skills in Guinea baboons

The paper manipulates foraging skill in male Guinea baboons and shows females adjust their social behavior based on the male's utility, not competence.

Choose your partner: Social evaluation of skilfulness at cooperative co-action tasks in Tonkean macaques (Macaca tonkeana)

This study shows Tonkean macaques do not prefer skilled partners in cooperative tasks, contradicting previous findings and suggesting limited social evaluation abilities.