Klaus Zuberbühler

This study shows nonhuman primates use supra-regular recursive grammars in vocal sequences, challenging the idea that syntax is unique to humans.

This study investigates peering behavior in wild chimpanzees to assess social learning and cultural transmission of everyday skills, finding that peering is used for targeted information seeking and may function as a signal for social interaction.

This study documents the vocal sequence repertoire and rules of sooty mangabeys, revealing a previously unreported hierarchical system using only two call types.

The paper detects Zipf's law of brevity in chimpanzee gestures by testing methodological and population-specific factors across three communities.

This study examines Toxoplasma gondii prevalence in wild chimpanzees, finding higher infection rates in a community with greater human interaction and among high-ranking males.

This study examines sex differences in pant-hoot vocalizations among wild Eastern chimpanzees, finding that females use pant-hoots less frequently and in response to others, while males show more varied patterns influenced by social and reproductive factors.

This study examines chimpanzee gesture sequences to determine if they show non-random combinations and how predictability is influenced by combinatorial rules.