Now showing items 1-20 of 20

  • Able-bodied wild chimpanzees imitate a motor procedure used by a disabled individual to overcome handicap 

    Hobaiter, Catherine; Byrne, Richard William (2010-08-05) - Journal article
    Chimpanzee culture has generated intense recent interest, fueled by the technical complexity of chimpanzee tool-using traditions; yet it is seriously doubted whether chimpanzees are able to learn motor procedures by imitation ...
  • Activity profiles and hook-tool use of New Caledonian crows recorded by bird-borne video cameras 

    Troscianko, Jolyon; Rutz, Christian (2015-12-23) - Journal article
    New Caledonian crows are renowned for their unusually sophisticated tool behaviour. Despite decades of fieldwork, however, very little is known about how they make and use their foraging tools in the wild, which is largely ...
  • Apes have culture but may not know that they do 

    Gruber, Thibaud; Zuberbuehler, Klaus; Clement, Fabrice; van Schaik, Carel (2015-02-06) - Journal article
    There is good evidence that some ape behaviors can be transmitted socially and that this can lead to group-specific traditions. However, many consider animal traditions, including those in great apes, to be fundamentally ...
  • The coevolution of innovation and technical intelligence in primates 

    Navarrete Rodriguez, Ana Francisca; Reader, Simon M.; Street, Sally E.; Whalen, Andrew; Laland, Kevin N. (2016-03) - Journal article
    In birds and primates, the frequency of behavioural innovation has been shown to covary with absolute and relative brain size, leading to the suggestion that large brains allow animals to innovate, and/or that selection ...
  • A cognitive approach to the study of culture in wild chimpanzees (Pan troglodytes schweinfurthii) 

    Gruber, Thibaud (University of St Andrews, 2011-11-30) - Thesis
    The question of animal culture has been of interest for decades. Chimpanzees (Pan troglodytes) have played a key role in the debate of whether or not it is appropriate to use the term ‘culture’ to describe animal behaviour ...
  • Context-dependent 'safekeeping' of foraging tools in New Caledonian crows 

    Klump, Barbara Christina; van der Wal, Jessica Eva Megan; St Clair, James; Rutz, Christian (2015-05-20) - Journal article
    Several animal species use tools for foraging, such as sticks to extract embedded arthropods and honey, or stones to crack open nuts and eggs. While providing access to nutritious foods, these behaviours may incur significant ...
  • First observation of Dorylus ant feeding in Budongo chimpanzees supports absence of stick-tool culture 

    Mugisha, Steven; Zuberbuehler, Klaus; Hobaiter, Catherine (2016-07) - Journal article
    The use of stick- or probe-tools is a chimpanzee universal, recorded in all long-term study populations across Africa, except one: Budongo, Uganda. Here, after 25-years of observation, stick-tool use remains absent under ...
  • Function and flexibility of object exploration in kea and new caledonian crows 

    Lambert, Megan L.; Schiestl, Martina; Schwing, Raoul; Taylor, Alex H.; Gajdon, Gyula K.; Slocombe, Katie E.; Seed, Amanda M. (2017-09-27) - Journal article
    A range of non-human animals frequently manipulate and explore objects in their environment, which may enable them to learn about physical properties and potentially form more abstract concepts of properties such as weight ...
  • Hook tool manufacture in New Caledonian crows : behavioural variation and the influence of raw materials 

    Klump, Barbara Christina; Sugasawa, Shoko; St Clair, James; Rutz, Christian (2015-11-18) - Journal article
    Background: New Caledonian crows use a range of foraging tools, and are the only non-human species known to craft hooks. Based on a small number of observations, their manufacture of hooked stick tools has previously been ...
  • In-group conformity sustains different foraging traditions in capuchin monkeys (Cebus apella) 

    Dindo, Marietta; Whiten, Andrew; de Waal, Frans B M (2009-11) - Journal article
    Background: Decades of research have revealed rich cultural repertoires encompassing multiple traditions in wild great apes, a picture crucially complemented by experimental simulations with captive apes. Studies with wild ...
  • Information seeking about tool properties in great apes 

    Bohn, Manuel; Allritz, Matthias; Call, Josep; Voelter, Christoph Johannes (2017-09-07) - Journal article
    Evidence suggests that great apes engage in metacognitive information seeking for food items. To support the claim that a domain-general cognitive process underlies ape metacognition one needs to show that selective ...
  • Kin-based cultural transmission of tool use in wild chimpanzees 

    Lamon, Noemie; Neumann, Christof; Gruber, Thibaud; Zuberbühler, Klaus (2017-04-26) - Journal article
    Current research on animal culture has focused strongly on cataloging the diversity of socially transmitted behaviors and on the social learning mechanisms that sustain their spread. Comparably less is known about the ...
  • Prestige affects cultural learning in chimpanzees 

    Horner, Victoria; Proctor, Darby; Bonnie, Kristin E.; Whiten, Andrew; de Waal, Frans B. M. (2010-05-19) - Journal article
    Humans follow the example of prestigious, high-status individuals much more readily than that of others, such as when we copy the behavior of village elders, community leaders, or celebrities. This tendency has been declared ...
  • Social attention in the two species of Pan: : bonobos make more eye contact than chimpanzees 

    Kano, Fumihiro; Hirata, Satoshi; Call, Josep (2015-06-15) - Journal article
    Humans' two closest primate living relatives, bonobos and chimpanzees, differ behaviorally, cognitively, and emotionally in several ways despite their general similarities. While bonobos show more affiliative behaviors ...
  • Social learning in mother-reared and "enculturated" capuchin monkeys 

    Fredman, Tamar (University of St Andrews, 2008) - Thesis
    This thesis explores social learning in mother-reared and “enculturated” capuchin monkeys (Cebus apella). At the outset a framework for understanding the social influence on learning is discussed, followed by a review ...
  • The spread of a novel behaviour in wild chimpanzees : new insights into the ape cultural mind 

    Gruber, Thibaud; Poisot, Timothée; Zuberbuehler, Klaus; Hoppitt, William; Hobaiter, Cat (2015-05) - Journal article
    For years, the animal culture debate has been dominated by the puzzling absence of direct evidence for social transmission of behavioural innovations in the flagship species of animal culture, the common chimpanzee. Although ...
  • Strong between-site variation in New Caledonian crows' use of hook-tool-making materials 

    St Clair, James; Klump, Barbara Christina; van der Wal, Jessica Eva Megan; Sugasawa, Shoko; Rutz, Christian (2016-06) - Journal article
    Functional tool use requires the selection of appropriate raw materials. New Caledonian crows Corvus moneduloides are known for their extraordinary tool-making behaviour, including the crafting of hooked stick tools from ...
  • Tool bending in New Caledonian crows 

    Rutz, Christian; Sugasawa, Shoko; van der Wal, Jessica Eva Megan; Klump, Barbara Christina; St Clair, James (2016-08) - Journal article
    ‘Betty’ the New Caledonian crow astonished the world, when she ‘spontaneously’ bent straight pieces of garden wire into hooked foraging tools. Recent field experiments have revealed that tool bending is part of the species’ ...
  • Tufted capuchin monkeys (Sapajus sp) learning how to crack nuts : does variability decline throughout development? 

    Resende, B.D.; Nagy-Reis, M.B.; Lacerda, F.N.; Pagnotta, M.; Savalli, C. (2014-11) - Journal article
    We investigated the process of nut-cracking acquisition in a semi-free population of tufted capuchin monkeys (Sapajus sp) in São Paulo, Brazil. We analyzed the cracking episodes from monkeys of different ages and found ...
  • Wild chimpanzees rely on cultural knowledge to solve an experimental honey acquisition task 

    Gruber, Thibaud; Muller, Martin N.; Strimling, Pontus; Wrangham, Richard; Zuberbuehler, Klaus (2009-11-17) - Journal article
    Population and group-specific behavioral differences have been taken as evidence for animal cultures [1-10], a notion that remains controversial. Skeptics argue that ecological or genetic factors, rather than social learning, ...