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Pubmed for Handhelds

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  • Title: Captive spider monkeys (Ateles geoffroyi) arm-raise to solicit allo-grooming.
    Author: Scheel MH, Edwards D.
    Journal: Behav Processes; 2012 Mar; 89(3):311-3. PubMed ID: 22206992.
    Abstract:
    Old World monkeys solicit allo-grooming from conspecifics. However, there are relatively few studies of allo-grooming among spider monkeys, and descriptions of allo-grooming solicitation among spider monkeys are anecdotal. In this study, eighty-one hours of video, shot over eight weeks, captured 271 allo-grooming bouts among small groups of captive spider monkeys. Six of eight monkeys made heretofore unreported arm-raises that solicited higher than normal rates of allo-grooming. Allo-grooming bout durations following arm-raises also tended to be longer than bouts not preceded by arm-raises. The efficacy of the arm-raise at soliciting allo-grooming suggests spider monkeys are capable of intentional communication.
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