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2015 ; 8
(1
): e992742
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Iconic gesturing in bonobos
#MMPMID26844623
Genty E
; Zuberbühler K
Commun Integr Biol
2015[Jan]; 8
(1
): e992742
PMID26844623
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We comment on a recent behavioral study in which we describe a human-like
beckoning gesture in 2 groups of bonobos, used in combination with sexual
solicitation postures. The beckoning gesture fulfils key criteria of deixis and
iconicity, in that it communicates to a distant recipient the desired travel path
in relation to a specific social intention, i.e., to have sex at another
location. We discuss this finding in light of the fact that, despite the
documented great ape capacity and obvious communicative advantage, referential
gestures are still surprisingly rare in their natural communication. We address
several possibilities for this peculiar underuse and are most compelled by the
notion that non-human primates are generally not very motivated to share their
experiences of external objects or events with others, which removes most reasons
for referential signaling.