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Author |
McGonigle, B. |
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Title |
Can apes learn to count? |
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Year |
1985 |
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Nature |
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Nature |
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Volume |
315 |
Issue |
6014 |
Pages |
16-17 |
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Animals; Behavior, Animal/physiology; Cognition; Pan troglodytes/*physiology |
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0028-0836 |
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PMID:3990806 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2794 |
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Author |
Cohen, J. |
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Title |
Animal behavior. The world through a chimp's eyes |
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Year |
2007 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
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Volume |
316 |
Issue |
5821 |
Pages |
44-45 |
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Keywords |
Animal Communication; Animals; *Behavior, Animal; Cognition; Cooperative Behavior; Culture; Memory; Pan troglodytes/*psychology; Social Behavior; Tool Use Behavior |
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1095-9203 |
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PMID:17412932 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2832 |
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Author |
Pennisi, E. |
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Title |
Are out primate cousins 'conscious'? |
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Year |
1999 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
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Volume |
284 |
Issue |
5423 |
Pages |
2073-2076 |
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Keywords |
Animals; *Behavior, Animal; Cebus; *Consciousness; Empathy; Humans; Instinct; Intelligence; Learning; *Mental Processes; Pan troglodytes; *Primates |
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0036-8075 |
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Notes |
PMID:10409060 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2843 |
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Author |
Parr, L.A.; de Waal, F.B. |
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Title |
Visual kin recognition in chimpanzees |
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Year |
1999 |
Publication |
Nature |
Abbreviated Journal |
Nature |
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Volume |
399 |
Issue |
6737 |
Pages |
647-648 |
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Keywords |
Animals; *Behavior, Animal; Face; Female; Male; Pan troglodytes/*physiology |
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0028-0836 |
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Notes |
PMID:10385114 |
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no |
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Call Number |
refbase @ user @ |
Serial |
195 |
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Author |
Whiten, A.; McGrew, W.C. |
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Title |
Is this the first portrayal of tool use by a chimp? |
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Year |
2001 |
Publication |
Nature |
Abbreviated Journal |
Nature |
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Volume |
409 |
Issue |
6816 |
Pages |
12 |
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Keywords |
Animals; *Behavior, Animal; Pan troglodytes/*physiology; Philately |
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0028-0836 |
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Notes |
PMID:11343083 |
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no |
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Call Number |
refbase @ user @ |
Serial |
739 |
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Author |
Herrmann, E.; Melis, A.P.; Tomasello, M. |
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Title |
Apes' use of iconic cues in the object-choice task |
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Journal Article |
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Year |
2006 |
Publication |
Animal cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
9 |
Issue |
2 |
Pages |
118-130 |
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Keywords |
Animal Communication; Animals; *Appetitive Behavior; *Choice Behavior; *Cues; Female; Gorilla gorilla; Male; *Nonverbal Communication; Pan paniscus; Pan troglodytes; Pongo pygmaeus; *Problem Solving; Space Perception; Species Specificity; Statistics, Nonparametric |
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Abstract |
In previous studies great apes have shown little ability to locate hidden food using a physical marker placed by a human directly on the target location. In this study, we hypothesized that the perceptual similarity between an iconic cue and the hidden reward (baited container) would help apes to infer the location of the food. In the first two experiments, we found that if an iconic cue is given in addition to a spatial/indexical cue – e.g., picture or replica of a banana placed on the target location – apes (chimpanzees, bonobos, orangutans, gorillas) as a group performed above chance. However, we also found in two further experiments that when iconic cues were given on their own without spatial/indexical information (iconic cue held up by human with no diagnostic spatial/indexical information), the apes were back to chance performance. Our overall conclusion is that although iconic information helps apes in the process of searching hidden food, the poor performance found in the last two experiments is due to apes' lack of understanding of the informative (cooperative) communicative intention of the experimenter. |
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Address |
Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany. eherrman@eva.mpg.de |
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ISSN |
1435-9448 |
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Notes |
PMID:16395566 |
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no |
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Call Number |
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Serial |
14 |
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Author |
Horner, V.; Whiten, A.; Flynn, E.; de Waal, F.B.M. |
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Title |
Faithful replication of foraging techniques along cultural transmission chains by chimpanzees and children |
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Journal Article |
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Year |
2006 |
Publication |
Proceedings of the National Academy of Sciences of the United States of America |
Abbreviated Journal |
Proc. Natl. Acad. Sci. U.S.A. |
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Volume |
103 |
Issue |
37 |
Pages |
13878-13883 |
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Keywords |
Animals; Child, Preschool; Humans; *Imitative Behavior; Pan troglodytes/*psychology |
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Abstract |
Observational studies of wild chimpanzees (Pan troglodytes) have revealed population-specific differences in behavior, thought to represent cultural variation. Field studies have also reported behaviors indicative of cultural learning, such as close observation of adult skills by infants, and the use of similar foraging techniques within a population over many generations. Although experimental studies have shown that chimpanzees are able to learn complex behaviors by observation, it is unclear how closely these studies simulate the learning environment found in the wild. In the present study we have used a diffusion chain paradigm, whereby a behavior is passed from one individual to the next in a linear sequence in an attempt to simulate intergenerational transmission of a foraging skill. Using a powerful three-group, two-action methodology, we found that alternative methods used to obtain food from a foraging device (“lift door” versus “slide door”) were accurately transmitted along two chains of six and five chimpanzees, respectively, such that the last chimpanzee in the chain used the same method as the original trained model. The fidelity of transmission within each chain is remarkable given that several individuals in the no-model control group were able to discover either method by individual exploration. A comparative study with human children revealed similar results. This study is the first to experimentally demonstrate the linear transmission of alternative foraging techniques by non-human primates. Our results show that chimpanzees have a capacity to sustain local traditions across multiple simulated generations. |
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Centre for Social Learning and Cognitive Evolution, School of Psychology, University of St. Andrews, Fife KY16 9JP, United Kingdom |
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ISSN |
0027-8424 |
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Notes |
PMID:16938863 |
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no |
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Call Number |
refbase @ user @ |
Serial |
159 |
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Author |
Bonnie, K.E.; de Waal, F.B.M. |
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Title |
Affiliation promotes the transmission of a social custom: handclasp grooming among captive chimpanzees |
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Journal Article |
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Year |
2006 |
Publication |
Primates |
Abbreviated Journal |
Primates |
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Volume |
47 |
Issue |
1 |
Pages |
27-34 |
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Keywords |
Animals; Animals, Zoo/*physiology; Behavior, Animal/*physiology; *Cultural Evolution; Grooming/*physiology; Observation; Pan troglodytes/*physiology; *Social Behavior |
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Abstract |
Handclasp grooming is a unique social custom, known to occur regularly among some, but not all populations of chimpanzees (Pan troglodytes). As with other cultural behaviors, it is assumed that this distinctive grooming posture is learned socially by one individual from another. However, statistical comparisons among factors thought to influence how a behavior spreads within a group have never, to our knowledge, been conducted. In the present study, the origination and spread of handclasp grooming in a group of captive chimpanzees was followed throughout more than 1,500 h of observation over a period of 12 years. We report on the frequency, bout duration, and number and demography of performers throughout the study period, and compare these findings to those reported for wild populations. We predicted that dyads with strong affiliative ties, measured by time spent in proximity to and grooming one another, were likely to develop a handclasp grooming partnership during the study period. A quadratic assignment procedure was used to compare correlations among observed frequencies of grooming and proximity with handclasp grooming in all possible dyads within the group. As predicted, the formation of new handclasp grooming dyads was positively correlated with the rate of overall grooming and proximity within a dyad. In addition, in nearly all dyads formed, at least one individual had been previously observed to handclasp groom. We concluded that affiliation and individual experience determines the transmission of handclasp grooming among captive chimpanzees. |
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Address |
Department of Psychology, Emory University, and Living Links Center, Yerkes National Primate Research Center, GA 30329, USA. kebonni@emory.edu |
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0032-8332 |
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Notes |
PMID:16142425 |
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no |
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Call Number |
refbase @ user @ |
Serial |
161 |
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Author |
de Waal, F.B.M. |
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Title |
A century of getting to know the chimpanzee |
Type |
Journal Article |
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Year |
2005 |
Publication |
Nature |
Abbreviated Journal |
Nature |
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Volume |
437 |
Issue |
7055 |
Pages |
56-59 |
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Keywords |
Aggression; Animals; Behavior, Animal/*physiology; Competitive Behavior; Cooperative Behavior; Female; Humans; Male; Pan troglodytes/genetics/*physiology/psychology; Sexual Behavior, Animal; *Social Behavior |
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Abstract |
A century of research on chimpanzees, both in their natural habitat and in captivity, has brought these apes socially, emotionally and mentally much closer to us. Parallels and homologues between chimpanzee and human behaviour range from tool-technology and cultural learning to power politics and intercommunity warfare. Few behavioural domains have remained untouched by this increased knowledge, which has dramatically challenged the way we view ourselves. The sequencing of the chimpanzee genome will no doubt bring more surprises and insights. Humans do occupy a special place among the primates, but this place increasingly has to be defined against a backdrop of substantial similarity. |
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Address |
Living Links, Yerkes National Primate Research Center, Emory University, 954 North Gatewood Road, Atlanta, Georgia 30322, USA. dewaal@emory.edu |
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ISSN |
1476-4687 |
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Notes |
PMID:16136128 |
Approved |
no |
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Call Number |
refbase @ user @ |
Serial |
162 |
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Author |
Whiten, A.; Horner, V.; de Waal, F.B.M. |
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Title |
Conformity to cultural norms of tool use in chimpanzees |
Type |
Journal Article |
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Year |
2005 |
Publication |
Nature |
Abbreviated Journal |
Nature |
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Volume |
437 |
Issue |
7059 |
Pages |
737-740 |
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Keywords |
Aging/physiology; Animals; Culture; Feeding Behavior/physiology; Female; Pan troglodytes/*physiology/*psychology; *Social Conformity; Technology; Time Factors |
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Abstract |
Rich circumstantial evidence suggests that the extensive behavioural diversity recorded in wild great apes reflects a complexity of cultural variation unmatched by species other than our own. However, the capacity for cultural transmission assumed by this interpretation has remained difficult to test rigorously in the field, where the scope for controlled experimentation is limited. Here we show that experimentally introduced technologies will spread within different ape communities. Unobserved by group mates, we first trained a high-ranking female from each of two groups of captive chimpanzees to adopt one of two different tool-use techniques for obtaining food from the same 'Pan-pipe' apparatus, then re-introduced each female to her respective group. All but two of 32 chimpanzees mastered the new technique under the influence of their local expert, whereas none did so in a third population lacking an expert. Most chimpanzees adopted the method seeded in their group, and these traditions continued to diverge over time. A subset of chimpanzees that discovered the alternative method nevertheless went on to match the predominant approach of their companions, showing a conformity bias that is regarded as a hallmark of human culture. |
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Address |
Centre for Social Learning and Cognitive Evolution, School of Psychology, University of St Andrews, St Andrews, Fife, KY16 9JP, UK. a.whiten@st-and.ac.uk |
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1476-4687 |
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PMID:16113685 |
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Call Number |
refbase @ user @ |
Serial |
163 |
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