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Grooming hand clasp in Sonso?
October 24, 2013
Grooming hand clasp in Sonso?
the grooming hand clasp. While chimpanzees at other field sites often hold hands in the air while they groom, the Sonso chimpanzees more regularly hold onto a branch, or leave their hands extended in the air. This difference between chimpanzee groups has been described as a cultural behaviour (Whiten et al. 2001).
Although this behaviour is not considered habitual in Sonso, it has been recorded roughly 4 times since the beginning of the project. This time, we were fortunate that Earthwatch volunteer Jonathan Hanna was present to capture this lovely photo of our two males Kwezi (left) and Pascal (right).
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