Now showing items 1-5 of 5

  • Chimpanzee alarm call production meets key criteria for intentionality 

    Schel, Anne Marijke; Townsend, Simon W.; Machanda, Zarin; Zuberbuehler, Klaus; Slocombe, Katie E. (2013-10-16) - Journal article
    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 gestural signals, comparable evidence ...
  • Context-specific close-range "hoo" calls in wild gibbons (Hylobates lar) 

    Clarke, Esther; Reichard, Ulrich H.; Zuberbuehler, Klaus (2015-04-08) - Journal article
    Background: Close range calls are produced by many animals during intra-specific interactions, such as during home range defence, playing, begging for food, and directing others. In this study, we investigated the most ...
  • Experimental evidence for the co-evolution of hominin tool-making teaching and language 

    Morgan, T. J. H.; Uomini, N. T.; Rendell, L. E.; Chouinard-Thuly, L.; Street, S. E.; Lewis, H. M.; Cross, C. P.; Evans, C.; Kearney, R.; de la Torre, I.; Whiten, A.; Laland, K. N. (2015-01-13) - Journal article
    Hominin reliance on Oldowan stone tools—which appear from 2.5 mya and are believed to have been socially transmitted—has been hypothesized to have led to the evolution of teaching and language. Here we present an experiment ...
  • Functional flexibility in wild bonobo vocal behaviour 

    Clay, Susanna Elizabeth Valerie; Archbold, Jahmaira; Zuberbuehler, Klaus (2015-08-04) - Journal article
    A shared principle in the evolution of language and the development of speech is the emergence of functional flexibility, the capacity of vocal signals to express a range of emotional states independently of context and ...
  • Vocal communication in bonobos (Pan paniscus) : studies in the contexts of feeding and sex 

    Clay, Zanna (University of St Andrews, 2011-06) - Thesis
    Despite having being discovered nearly 80 years ago, bonobos (Pan paniscus) are still one of the least well understood of the great apes, largely remaining in the shadow of their better known cousins, the chimpanzees (Pan ...