Assertion: bonobo's behavior | /r/HasProperty | brent et
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text: Stressful procedures and the related effects of indoor single caging are probably to blame for increased stereotypies in captive chimpanzees on research protocols (Baker, 1996).In a study conducted at the Southwest Foundation for Biomedical Research, chimpanzees in temporary isolation expressed increased abnormal behaviors (Brent et at., 1989).