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Generation times in wild chimpanzees and gorillas suggest earlier divergence times in great ape and human evolution
Fossils and molecular data are two independent sources of information that should in principle provide consistent inferences of when evolutionary lineages diverged. Here we use an alternativeExpand
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Diana monkey long-distance calls: messages for conspecifics and predators
Abstract Primate long-distance calls have typically been interpreted as communication signals between conspecific groups (the ‘resource defence hypothesis’), but their potential role as anti-predatorExpand
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A syntactic rule in forest monkey communication
Abstract Syntactic rules allow a speaker to combine signals with existing meanings to create an infinite number of new meanings. Even though combinatory rules have also been found in some animalExpand
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Campbell's Monkeys Use Affixation to Alter Call Meaning
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,Expand
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Leopard predation and primate evolution.
Although predation is an important driving force of natural selection its effects on primate evolution are still not well understood, mainly because little is known about the hunting behaviour of theExpand
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Food sharing is linked to urinary oxytocin levels and bonding in related and unrelated wild chimpanzees
Humans excel in cooperative exchanges between unrelated individuals. Although this trait is fundamental to the success of our species, its evolution and mechanisms are poorly understood. Other socialExpand
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Referential labelling in Diana monkeys
Animal semantic communication has received considerable theoretical and empirical attention because of its relevance to human language. Advances have been made by studies of alarm-call behaviour inExpand
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The Predator Deterrence Function of Primate Alarm Calls
It is generally assumed that alarm calls function in intraspecific communication, for example to warn close relatives about the presence of a predator. However, an alternative hypothesis suggestsExpand
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Chimpanzee Alarm Call Production Meets Key Criteria for Intentionality
Determining the intentionality of primate communication is critical to understanding the evolution of human language. Although intentional signalling has been claimed for some great ape gesturalExpand
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A comparison of bonobo and chimpanzee tool use: evidence for a female bias in the Pan lineage
Chimpanzees, Pan troglodytes, are the most sophisticated tool-users among all nonhuman primates. From an evolutionary perspective, it is therefore puzzling that the tool use behaviour of theirExpand
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