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Rescue behavior in white-faced capuchin monkeys during an intergroup attack: support for the infanticide avoidance
1Department of Ecology and Evolution, Stony Brook University, New York, USA. evogel@ucsc.edu
Abstract:
In this work we report the first published observational evidence of rescue behavior during an intergroup interaction in white-faced capuchin monkeys (Cebus capucinus). The study groups (groups AA and RR) inhabit the forest of Lomas Barbudal Biological Reserve in Guanacaste, Costa Rica, and have been under investigation since 1990 and 1997, respectively. Here we report a single interaction in which a victim mother-infant pair was rescued from potential injury or death by the intervention of an adult male from their social group during an intergroup encounter. We discuss several hypotheses that may be relevant in explaining this unique observation.
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