Does participation in intergroup conflict depend on numerical assessment, range location, or rank for wild chimpanzees?
Article Abstract:
Research describing intergroup aggression in male chimpanzees is presented. Play back experiments show that chimpanzees respond as if there is a positive benefit from repelling other groups provided there are sufficient numbers in his group.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2001
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Chimpanzees spontaneously alter the location of their gestures to match the attentional orientation of others
Article Abstract:
Interaction of chimpanzees, Pan troglodytes, with a familiar human partner across a table that contained a piece of highly desirable food and an undesirable distracter object was noticed. Exploration of how chimpanzees deployed their gestures on trials in which the food and object were out of their reach is done.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2003
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Does learning affect the structure of vocalizations in chimpanzees?
Article Abstract:
Captive male Pan troglodytes, chimpanzees, were observed in captivity in two locations in the US. The calls of the two groups were subject to acoustic analysis and significant differences were found. These differences were not due to genetic causes since both goups came from a wide range of sources. Vocal learning appear to be the cause of the differences There appear to be species-specific constraints, as well as local variants, judging by comparisons with wild chimps in Uganda. A call learnt in one colony spread among males in that colony, backing up the idea that calls can be learnt.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1999
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