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Author |
Whiten, A. |
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Title |
The second inheritance system of chimpanzees and humans |
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Journal Article |
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Year |
2005 |
Publication |
Nature |
Abbreviated Journal |
Nature |
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Volume |
437 |
Issue |
7055 |
Pages |
52-55 |
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Keywords  |
Animals; Animals, Wild/physiology/psychology; Behavior, Animal/*physiology; *Culture; Female; Humans; Imitative Behavior; Learning/*physiology; Pan troglodytes/*physiology/psychology; *Social Behavior; Technology |
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Abstract |
Half a century of dedicated field research has brought us from ignorance of our closest relatives to the discovery that chimpanzee communities resemble human cultures in possessing suites of local traditions that uniquely identify them. The collaborative effort required to establish this picture parallels the one set up to sequence the chimpanzee genome, and has revealed a complex social inheritance system that complements the genetic picture we are now developing. |
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Address |
Centre for Social Learning and Cognitive Evolution, and Scottish Primate Research Group, School of Psychology, University of St Andrews, St Andrews, Fife KY16 9JP, UK. a.whiten@st-and.ac.uk |
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English |
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ISSN |
1476-4687 |
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PMID:16136127 |
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no |
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Call Number |
refbase @ user @ |
Serial |
730 |
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Author |
Assersohn, C.; Whiten, A.; Kiwede, Z.T.; Tinka, J.; Karamagi, J. |
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Title |
Use of leaves to inspect ectoparasites in wild chimpanzees: a third cultural variant? |
Type |
Journal Article |
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Year |
2004 |
Publication |
Primates |
Abbreviated Journal |
Primates |
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Volume |
45 |
Issue |
4 |
Pages |
255-258 |
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Keywords |
Animals; Animals, Wild/physiology; Ape Diseases/*parasitology; Behavior, Animal/*physiology; Ectoparasitic Infestations/parasitology/*veterinary; Female; Grooming/*physiology; Male; Pan troglodytes/*physiology; *Plant Leaves; Protozoa/*isolation & purification; Uganda |
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Abstract |
We report 26 cases of using leaves as tools with which wild chimpanzees (Pan troglodytes schweinfurthii) in the Sonso community, Budongo Forest, Uganda, appeared to inspect objects removed during grooming. Careful removal of potential ectoparasites and delicate lip or manual placement on leaves followed by intense visual examination characterised this behaviour. It appears to be done to judge whether either ingestion or discarding is most appropriate, the former occurring in most cases. This behaviour may represent a third variant of ectoparasite handling, different from those described at Tai and Gombe, yet sharing features with the latter. These two East African techniques may thus have evolved from leaf grooming. |
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Scottish Primate Research Group, School of Psychology, University of St Andrews, St Andrews, KY16 9JU, Fife, UK |
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ISSN |
0032-8332 |
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PMID:15179558 |
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Call Number |
refbase @ user @ |
Serial |
733 |
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Author |
Lonsdorf, E.V. |
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Title |
What is the role of mothers in the acquisition of termite-fishing behaviors in wild chimpanzees (Pan troglodytes schweinfurthii)? |
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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 |
1 |
Pages |
36-46 |
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Keywords |
Animals; Animals, Wild; *Behavior, Animal; Cooking and Eating Utensils; Feeding Behavior/*psychology; Female; *Imitative Behavior; Learning; Mothers/*psychology; Motor Skills; Pan troglodytes/*psychology; Problem Solving |
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Abstract |
This paper explores the role of maternal influences on the acquisition of a tool-using task in wild chimpanzees (Pan troglodytes schweinfurthii) in order to build on and complement previous work done in captivity. Young chimpanzees show a long period of offspring dependency on mothers and it is during this period that offspring learn several important skills, especially how to and on what to forage. At Gombe National Park, one skill that is acquired during dependency is termite-fishing, a complex behavior that involves inserting a tool made from the surrounding vegetation into a termite mound and extracting the termites that attack and cling to the tool. All chimpanzees observed at Gombe have acquired the termite-fishing skill by the age of 5.5 years. Since the mother is the primary source of information throughout this time period, I investigated the influence of mothers' individual termite-fishing characteristics on their offsprings' speed of acquisition and proficiency at the skill once acquired. Mother's time spent alone or with maternal family members, which is highly correlated to time spent termite-fishing, was positively correlated to offspring's acquisition of critical elements of the skill. I also investigated the specific types of social interactions that occur between mothers and offspring at the termite mound and found that mothers are highly tolerant to offspring, even when the behavior of the offspring may disrupt the termite-fishing attempt. However, no active facilitation by mothers of offsprings' attempts were observed. |
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Department of Ecology, Evolution and Behavior, University of Minnesota, St. Paul, MN 55108, USA. elonsdorf@lpzoo.org |
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English |
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ISSN |
1435-9448 |
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Notes |
PMID:16195914 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2480 |
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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 |
Type |
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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English |
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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 |
Palagi, E.; Cordoni, G.; Borgognini Tarli, S. |
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Title |
Possible roles of consolation in captive chimpanzees (Pan troglodytes) |
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Journal Article |
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Year |
2006 |
Publication |
American Journal of Physical Anthropology |
Abbreviated Journal |
Am J Phys Anthropol |
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Volume |
129 |
Issue |
1 |
Pages |
105-111 |
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Keywords |
Animals; Animals, Zoo/*physiology; Empathy; Female; Male; Pan troglodytes/*physiology; *Social Behavior; Stress/physiopathology/veterinary |
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Abstract |
Empathy is a necessary prerequisite for the occurrence of consolation. The term “consolation” contains a hypothesis about function, which is distress alleviation. The present study aims to confirm the occurrence of consolation in captive chimpanzees via the post-conflict/matched-control method (PC-MC) and to suggest its possible roles. We collected 273 PC-MC pairs in the group of Pan troglodytes housed in the ZooParc de Beauval (France). We confirmed the presence of consolatory contacts (mean level of consolation, 49.5% +/- 22.3% SEM) in the colony. Consolation rates were significantly higher than reconciliation levels (mean level of reconciliation, 28.9% +/- 16.8% SEM). The level of consolation was greater in the absence of reconciliation than in the presence of it, suggesting that consolation might be an alternative behavior. As friendship and relatedness did not influence the occurrence of consolation, they did not seem to be the best prerequisites for this behavioral mechanism, at least in this chimpanzee colony. Affinitive contacts with third parties were significantly more frequent when the victim called attention to itself during severe aggressions by screaming. These high-pitched sounds seem to be useful in eliciting aid from conspecifics, as occurs in young humans. The occurrence of consolation reduced the likelihood of further attacks among group-members. From this perspective, both victims and consolers most likely gain potential advantages by interacting with each other when aggression is particularly severe, reconciliation is not immediate, and consequently social stress reaches high levels. |
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Address |
Centro Interdipartimentale Museo di Storia Naturale e del Territorio, Universita di Pisa, 56010 Calci, Italy. betta.palagi@museo.unipi.it |
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0002-9483 |
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Notes |
PMID:16229027 |
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no |
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Call Number |
refbase @ user @ |
Serial |
2871 |
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Author |
Whiten, A. |
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Title |
Imitation of the sequential structure of actions by chimpanzees (Pan troglodytes) |
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Journal Article |
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Year |
1998 |
Publication |
Journal of comparative psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
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Volume |
112 |
Issue |
3 |
Pages |
270-281 |
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Keywords |
Animals; Appetitive Behavior/physiology; *Ceremonial Behavior; Exploratory Behavior/physiology; Female; Fruit; Imitative Behavior/*physiology; Learning/*physiology; Male; Pan troglodytes/*psychology; Practice (Psychology); Problem Solving/*physiology |
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Abstract |
Imitation was studied experimentally by allowing chimpanzees (Pan troglodytes) to observe alternative patterns of actions for opening a specially designed “artificial fruit.” Like problematic foods primates deal with naturally, with the test fruit several defenses had to be removed to gain access to an edible core, but the sequential order and method of defense removal could be systematically varied. Each subject repeatedly observed 1 of 2 alternative techniques for removing each defense and 1 of 2 alternative sequential patterns of defense removal. Imitation of sequential organization emerged after repeated cycles of demonstration and attempts at opening the fruit. Imitation in chimpanzees may thus have some power to produce cultural convergence, counter to the supposition that individual learning processes corrupt copied actions. Imitation of sequential organization was accompanied by imitation of some aspects of the techniques that made up the sequence. |
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Address |
Scottish Primate Research Group, School of Psychology, University of St. Andrews, Fife, Scotland. a.whiten@st-andrews.ac.uk |
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0735-7036 |
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PMID:9770315 |
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Call Number |
refbase @ user @ |
Serial |
743 |
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Author |
Byrne, R.W.; Bates, L.A. |
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Title |
Why are animals cognitive? |
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Journal Article |
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2006 |
Publication |
Current Biology : CB |
Abbreviated Journal |
Curr Biol |
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16 |
Issue |
12 |
Pages |
R445-8 |
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Keywords |
Animals; Arachnida/physiology; *Association Learning; *Behavior, Animal; *Cognition; Cooperative Behavior; Falconiformes/physiology; Pan troglodytes/physiology; Parrots/physiology; Passeriformes/physiology |
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Centre for Social Learning and Cognitive Evolution, and Scottish Primate Research Group, School of Psychology, University of St Andrews, Fife KY16 9JP, Scotland |
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ISSN |
0960-9822 |
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PMID:16781995 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4708 |
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Author |
Mulcahy, N.J.; Call, J. |
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Title |
Apes save tools for future use |
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Journal Article |
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Year |
2006 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
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Volume |
312 |
Issue |
5776 |
Pages |
1038-1040 |
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Keywords |
Animals; Association Learning; *Cognition; *Evolution; *Mental Processes; *Pan paniscus; Pan troglodytes; *Pongo pygmaeus |
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Abstract |
Planning for future needs, not just current ones, is one of the most formidable human cognitive achievements. Whether this skill is a uniquely human adaptation is a controversial issue. In a study we conducted, bonobos and orangutans selected, transported, and saved appropriate tools above baseline levels to use them 1 hour later (experiment 1). Experiment 2 extended these results to a 14-hour delay between collecting and using the tools. Experiment 3 showed that seeing the apparatus during tool selection was not necessary to succeed. These findings suggest that the precursor skills for planning for the future evolved in great apes before 14 million years ago, when all extant great ape species shared a common ancestor. |
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Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, D-04103 Leipzig, Germany |
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ISSN |
1095-9203 |
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PMID:16709782 |
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no |
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Call Number |
refbase @ user @ |
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466 |
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Author |
de Waal, F.B.M. |
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Title |
How animals do business |
Type |
Journal Article |
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Year |
2005 |
Publication |
Scientific American |
Abbreviated Journal |
Sci Am |
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Volume |
292 |
Issue |
4 |
Pages |
54-61 |
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Keywords |
Animals; Attitude; *Behavior, Animal; Cebus; Cooperative Behavior; *Economics; Emotions; Fishes; Food; Humans; Pan troglodytes; Papio; Social Behavior |
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Emory University, USA |
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0036-8733 |
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PMID:15915815 |
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refbase @ user @ |
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166 |
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Author |
Gallup, G.G.J. |
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Title |
Do minds exist in species other than our own? |
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Journal Article |
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Year |
1985 |
Publication |
Neuroscience and Biobehavioral Reviews |
Abbreviated Journal |
Neurosci Biobehav Rev |
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9 |
Issue |
4 |
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631-641 |
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Keywords |
Animals; Awareness; *Behavior, Animal; Child Psychology; Child, Preschool; *Cognition; Consciousness; Evolution; Humans; Infant; Language; Pan troglodytes; Philosophy; Psychological Theory; Species Specificity |
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Abstract |
An answer to the question of animal awareness depends on evidence, not intuition, anecdote, or debate. This paper examines some of the problems inherent in an analysis of animal awareness, and whether animals might be aware of being aware is offered as a more meaningful distinction. A framework is presented which can be used to make a determination about the extent to which other species have experiences similar to ours based on their ability to make inferences and attributions about mental states in others. The evidence from both humans and animals is consistent with the idea that the capacity to use experience to infer the experience of others is a byproduct of self-awareness. |
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ISSN |
0149-7634 |
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PMID:4080281 |
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Equine Behaviour @ team @ |
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2808 |
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