Date: July 11, 2018
Source: Max Planck Institute for Evolutionary
Anthropology
Summary:
Researcher show that wild
chimpanzees and sooty mangabeys, two primate species who live in complex social
groups, choose their grooming partners based on a variety of criteria,
including their social relationship with them and their potential partner's
dominance rank. In particular, individuals of both species avoided grooming
group mates whose friends were among the bystanders, as grooming might be
interrupted.
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