Now showing items 1-5 of 141

    • Linguistic laws in chimpanzee gestural communication 

      Heesen, Raphaela; Hobaiter, Catherine; Ferrer-i-Cancho, Ramon; Semple, Stuart (2019-02-13) - Journal article
      Studies testing linguistic laws outside language have provided important insights into the organization of biological systems. For example, patterns consistent with Zipf's law of abbreviation (which predicts a negative ...
    • Wild hummingbirds require a consistent view of landmarks to pinpoint a goal location 

      Pritchard, David J.; Hurly, T. Andrew; Healy, Susan D. (2018-03) - Journal article
      One outcome of the extensive work on the ways that birds and insects use visual landmarks to return to a rewarded location is that they use landmarks differently. But this conclusion may have been reached because the almost ...
    • Orangutans (Pongo abelii) make flexible decisions relative to reward quality and tool functionality in a multi-dimensional tool-use task 

      Laumer, Isabelle B.; Auersperg, Alice M. I.; Bugnyar, Thomas; Call, Josep (2019-02-13) - Journal article
      Making economic decisions in a natural foraging situation that involves the use of tools, may require an animal to consider more levels of relational complexity than merely deciding between an immediate and a delayed food ...
    • Assessing host-virus codivergence for close relatives of Merkel cell polyomavirus infecting African great apes 

      Madinda, Nadège F.; Ehlers, Bernhard; Wertheim, Joel O.; Akoua-Koffi, Chantal; Bergl, Richard A.; Boesch, Christophe; Akonkwa, Dieudonné Boji Mungu; Eckardt, Winnie; Fruth, Barbara; Gillespie, Thomas R.; Gray, Maryke; Hohmann, Gottfried; Karhemere, Stomy; Kujirakwinja, Deo; Langergraber, Kevin; Muyembe, Jean Jacques; Nishuli, Radar; Pauly, Maude; Petrzelkova, Klara J.; Robbins, Martha M.; Todd, Angelique; Schubert, Grit; Stoinski, Tara S.; Wittig, Roman M.; Zuberbühler, Klaus; Peeters, Martine; Leendertz, Fabian H.; Calvignac-Spencer, Sébastien (2016-10) - Journal article
      It has long been hypothesized that polyomaviruses (PyV; family Polyomaviridae) codiverged with their animal hosts. In contrast, recent analyses suggested that codivergence may only marginally influence the evolution of ...
    • Development of object manipulation in wild chimpanzees 

      Lamon, Noemie; Neumann, Christof; Zuberbuhler, Klaus (2018-01) - Journal article
      Chimpanzees’ natural propensity to explore and play with objects is likely to be an important precursor of tool use. Manipulating objects provides individuals with pivotal perceptual-motor experience when interacting with ...