Neighbor effect: Evidence of affiliative and agonistic social contagion in captive chimpanzees (Pan troglodytes)

Article Abstract:

The relationship between behavior patterns in focal animals and the auditory signals of neighboring social groups is studied. Results suggest that there is a relationship between grooming vocalizations in focal groups and neighboring groups and that a social contagion is not limited to aggressive behaviors, but also occur for affiliative behavior patterns.

Public affairs, Social aspects, Animal behavior, Animal communication, Grooming, Animal behaviour

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Leaf-pile pulling: an unusual play pattern in wild Chimpanzees

Article Abstract:

A locality-specific pattern of play that has aspects of object as well as social play is described. It is known as 'leaf-pile pullingE and is based on video footage of the Chimpanzees.

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Demography, female life history, and reproductive profiles among the chimpanzees of Mahale

Article Abstract:

The new demographic records of chimpanzees from Mahale are presented. The factors that affect chimpanzee reproduction and their conservation are discussed.

Demographic aspects, Protection and preservation

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