An unresolved issue in comparative approaches to speech evolution is the apparent
absence of an intermediate vocal communication system between human speech and the …

Vocalizations are a pervasive feature of nonhuman primate social life, yet we know
surprisingly little about their function. We review studies supporting the hypothesis that many …

Great apes give gestures deliberately and voluntarily, in order to influence particular target
audiences, whose direction of attention they take into account when choosing which type of …

Determining the intentionality of primate communication is critical to understanding the
evolution of human language. Although intentional signalling has been claimed for some …

Within-group variation in sociality has been linked to correlates of fitness across vertebrates.
Individuals that form strong social bonds with a few partners, or are well integrated into a …

One standout feature of human language is our ability to reference external objects and
events with socially learned symbols, or words. Exploring the phylogenetic origins of this …

Cooperation and communication likely coevolved in humans. However, the evolutionary
roots of this interdependence remain unclear. We address this issue by investigating the role …

Cross-species comparison of great ape gesturing has so far been limited to the physical
form of gestures in the repertoire, without questioning whether gestures share the same …

A growing body of observational and experimental data in nonhuman primates has
highlighted the presence of rudimentary call combinations within the vocal communication …

Until recently, human nonverbal vocalisations such as cries, laughs, screams, moans, and
groans have received relatively little attention in the human behavioural sciences. Yet these …