In: Behavioral Ecology and Sociobiology, 2014, vol. 68, no. 2, p. 321-331
|
In: Science, 2019, vol. 363, no. 6434, p. 1453-1455
Chimpanzees possess a large number of behavioral and cultural traits among nonhuman species. The “disturbance hypothesis” predicts that human impact depletes resources and disrupts social learning processes necessary for behavioral and cultural transmission. We used a dataset of 144 chimpanzee communities, with information on 31 behaviors, to show that chimpanzees inhabiting areas with high...
|
In: Revue Tranel, 2018, vol. 68, p. 69-75
Human communication, including language, is the product of underlying intentions that are purposely expressed, epistemically monitored and flexibly interpreted. A main question in science has been about the evolutionary origins of this cognitive capacity. One way to address the problem is by studying the natural communication of animals, particularly nonhuman primates. As everything in biology,...
|
In: International Journal of Primatology, 2013, vol. 34, no. 3, p. 644-645
|
In: Language and Cognition, 2013, vol. 5, no. 2-3, p. 133-143
|
In: Science Advances, 2017, vol. 3, no. 4, p. e160275
Current research on animal culture has focused strongly on cataloging the diversity of socially transmitted behaviors and on the social learning mechanisms that sustain their spread. Comparably less is known about the persistence of cultural behavior following innovation in groups of wild animals. We present observational data and a field experiment designed to address this question in a wild...
|
In: Current Biology, 2008, vol. 18, no. 5, p. R202-R203
|
In: PLoS ONE, 2008, vol. 3, no. 6, p. e2431
The adaptive function of copulation calls in female primates has been debated for years. One influential idea is that copulation calls are a sexually selected trait, which enables females to advertise their receptive state to males. Male-male competition ensues and females benefit by getting better mating partners and higher quality offspring. We analysed the copulation calling behaviour of...
|
In: Animal Behaviour, 2009, vol. 78, no. 1, p. 35-44
Field studies on male forest guenon alarm-calling behaviour have revealed a number of intricacies about how these primates use vocalizations to protect themselves from predation. In these species, the vocal behaviour of adult females is often different from that of the males, but little systematic work has been done. Here, we describe the alarm call system of female Campbell's monkeys,...
|
In: PLoS ONE, 2009, vol. 4, no. 11, p. e7808
Human language has evolved on a biological substrate with phylogenetic roots deep in the primate lineage. Here, we describe a functional analogy to a common morphological process in human speech, affixation, in the alarm calls of free-ranging adult Campbell's monkeys (Cercopithecus campbelli campbelli). We found that male alarm calls are composed of an acoustically variable stem, which...
|
