Browsing by Subject "chimpanzees"
Now showing items 1-4 of 4
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Chimpanzees return favors at a personal cost.
(Proc Natl Acad Sci U S A, 2017-06-19)Humans regularly provide others with resources at a personal cost to themselves. Chimpanzees engage in some cooperative behaviors in the wild as well, but their motivational underpinnings are unclear. In three experiments, ... -
Differences in the early cognitive development of children and great apes.
(Dev Psychobiol, 2014-04)There is very little research comparing great ape and human cognition developmentally. In the current studies we compared a cross-sectional sample of 2- to 4-year-old human children (n=48) with a large sample of chimpanzees ... -
Early social exposure in wild chimpanzees: mothers with sons are more gregarious than mothers with daughters.
(Proc Natl Acad Sci U S A, 2014-12-23)In many mammals, early social experience is critical to developing species-appropriate adult behaviors. Although mother-infant interactions play an undeniably significant role in social development, other individuals in ... -
Social disappointment explains chimpanzees' behaviour in the inequity aversion task.
(Proc Biol Sci, 2017-08-30)Chimpanzees' refusal of less-preferred food when an experimenter has previously provided preferred food to a conspecific has been taken as evidence for a sense of fairness. Here, we present a novel hypothesis-the social ...
