Ontology highlight
ABSTRACT:
SUBMITTER: Samuni L
PROVIDER: S-EPMC6191705 | biostudies-literature | 2018 Oct
REPOSITORIES: biostudies-literature
Proceedings. Biological sciences 20181010 1888
Why share when access to benefits is uncertain is crucial to our understanding of the evolution of humans' extensive cooperation. Here, we investigated some of the different human sharing hypotheses and potential neuroendocrine mechanisms, in one of our closest living relatives, chimpanzees. The strongest predictor of sharing across food types was the presence of enduring and mutually preferred grooming partners, more than harassment, direct signalling, or trade. Moreover, urinary oxytocin level ...[more]