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Biol Lett. Jun 23, 2010; 6(3): 325–328.
Published online Jan 6, 2010. doi:  10.1098/rsbl.2009.0875
PMCID: PMC2880049

Attention to elders' voice in non-human primates

Abstract

The observed respect and attention to elders' speech in traditional cultures appears to have a ‘universal’ component which questions its possible biological bases. Animals present differential attention to the vocalizations of other individuals according to their characteristics but little is known about the potential propensity to pay more attention to vocalizations of elders. On the basis of several hundreds of vocal exchanges recorded, here we show that aged female Campbell's monkeys (Cercopithecus campbelli), despite being significantly less ‘loquacious’ than their younger adult counterparts, elicit many more responses when calling. These findings show that attention to elders' vocal production appears in non-human primates, leading to new lines of questioning on human culture and language evolution.

Keywords: intergenerational, vocal exchange, primate

Articles from Biology Letters are provided here courtesy of The Royal Society