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Author Chappell J
Title Avian cognition: understanding tool use Type Journal Article
Year 2006 Publication Current Biology Abbreviated Journal Curr. Biol.
Volume 16 Issue (up) Pages 244
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 3058
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Author McCoy, D.E.; Schiestl, M.; Neilands, P.; Hassall, R.; Gray, R.D.; Taylor, A.H.
Title New Caledonian Crows Behave Optimistically after Using Tools Type Journal Article
Year 2019 Publication Current Biology Abbreviated Journal
Volume Issue (up) Pages
Keywords tool use; New Caledonian crows; optimism; cognitive bias; animal emotion; intrinsic motivation; comparative cognition
Abstract Summary Are complex, species-specific behaviors in animals reinforced by material reward alone or do they also induce positive emotions? Many adaptive human behaviors are intrinsically motivated: they not only improve our material outcomes, but improve our affect as well [1, 2, 3, 4, 5, 6, 7, 8]. Work to date on animal optimism, as an indicator of positive affect, has generally focused on how animals react to change in their circumstances, such as when their environment is enriched [9, 10, 11, 12, 13, 14] or they are manipulated by humans [15, 16, 17, 18, 19, 20, 21, 22, 23], rather than whether complex actions improve emotional state. Here, we show that wild New Caledonian crows are optimistic after tool use, a complex, species-specific behavior. We further demonstrate that this finding cannot be explained by the crows needing to put more effort into gaining food. Our findings therefore raise the possibility that intrinsic motivation (enjoyment) may be a fundamental proximate cause in the evolution of tool use and other complex behaviors. Video Abstract
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ISSN 0960-9822 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6581
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Author Gould, J.L.
Title Animal cognition Type Journal Article
Year 2004 Publication Current Biology : CB Abbreviated Journal Curr Biol
Volume 14 Issue (up) 10 Pages R372-5
Keywords Animals; Awareness; Behavior, Animal/*physiology; Cognition/*physiology; Concept Formation; Decision Making; Instinct; Intelligence/*physiology; Learning/*physiology; Species Specificity
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Address Department of Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey 08544, USA. gould@princeton.edu
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Language English Summary Language Original Title
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ISSN 0960-9822 ISBN Medium
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Notes PMID:15186759 Approved no
Call Number Equine Behaviour @ team @ Serial 4169
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Author Range, F.; Viranyi, Z.; Huber, L.
Title Selective Imitation in Domestic Dogs Type Journal Article
Year 2007 Publication Current Biology Abbreviated Journal Curr Biol
Volume 17 Issue (up) 10 Pages 868-872
Keywords Sysneuro
Abstract Summary The transmission of cultural knowledge requires learners to identify what relevant information to retain and selectively imitate when observing others' skills. Young human infants--without relying on language or theory of mind--already show evidence of this ability. If, for example, in a communicative context, a model demonstrates a head action instead of a more efficient hand action, infants imitate the head action only if the demonstrator had no good reason to do so, suggesting that their imitation is a selective, interpretative process [1]. Early sensitivity to ostensive-communicative cues and to the efficiency of goal-directed actions is thought to be a crucial prerequisite for such relevance-guided selective imitation [2]. Although this competence is thought to be human specific [2], here we show an analog capacity in the dog. In our experiment, subjects watched a demonstrator dog pulling a rod with the paw instead of the preferred mouth action. In the first group, using the “inefficient” action was justified by the model's carrying of a ball in her mouth, whereas in the second group, no constraints could explain the demonstrator's choice. In the first trial after observation, dogs imitated the nonpreferred action only in the second group. Consequently, dogs, like children, demonstrated inferential selective imitation.
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ISSN 0960-9822 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5261
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Author Gould, J.L.
Title Animal Navigation: The Evolution of Magnetic Orientation Type Journal Article
Year 2008 Publication Current Biology Abbreviated Journal
Volume 18 Issue (up) 11 Pages R482-R484
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Abstract Summary Animals have several types of magnetic organ, often separately specialized for determining direction versus location. Recent results offer hints about how these once-unimaginable detectors may have evolved.
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ISSN 0960-9822 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 4770
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Author Byrne, R.W.; Bates, L.A.
Title Why are animals cognitive? Type Journal Article
Year 2006 Publication Current Biology : CB Abbreviated Journal Curr Biol
Volume 16 Issue (up) 12 Pages R445-8
Keywords Animals; Arachnida/physiology; *Association Learning; *Behavior, Animal; *Cognition; Cooperative Behavior; Falconiformes/physiology; Pan troglodytes/physiology; Parrots/physiology; Passeriformes/physiology
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Address 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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Language English Summary Language Original Title
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ISSN 0960-9822 ISBN Medium
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Notes PMID:16781995 Approved no
Call Number Equine Behaviour @ team @ Serial 4708
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Author Wallner, B.; Palmieri, N.; Vogl, C.; Rigler, D.; Bozlak, E.; Druml, T.; Jagannathan, V.; Leeb, T.; Fries, R.; Tetens, J.; Thaller, G.; Metzger, J.; Distl, O.; Lindgren, G.; Rubin, C.-J.; Andersson, L.; Schaefer, R.; McCue, M.; Neuditschko, M.; Rieder, S.; Schlötterer, C.; Brem, G.
Title Y Chromosome Uncovers the Recent Oriental Origin of Modern Stallions Type Journal Article
Year 2017 Publication Current Biology Abbreviated Journal Current Biology
Volume 27 Issue (up) 13 Pages 2029-2035.e5
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Abstract The Y chromosome directly reflects male genealogies, but the extremely low Y chromosome sequence diversity in horses has prevented the reconstruction of stallion genealogies [1, 2]. Here, we resolve the first Y chromosome genealogy of modern horses by screening 1.46 Mb of the male-specific region of the Y chromosome (MSY) in 52 horses from 21 breeds. Based on highly accurate pedigree data, we estimated the de novo mutation rate of the horse MSY and showed that various modern horse Y chromosome lineages split much later than the domestication of the species. Apart from few private northern European haplotypes, all modern horse breeds clustered together in a roughly 700-year-old haplogroup that was transmitted to Europe by the import of Oriental stallions. The Oriental horse group consisted of two major subclades: the Original Arabian lineage and the Turkoman horse lineage. We show that the English Thoroughbred MSY was derived from the Turkoman lineage and that English Thoroughbred sires are largely responsible for the predominance of this haplotype in modern horses.
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Publisher Elsevier Place of Publication Editor
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Notes doi: 10.1016/j.cub.2017.05.086 Approved no
Call Number Equine Behaviour @ team @ Serial 6669
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Author Wathan, J.; McComb, K.
Title The eyes and ears are visual indicators of attention in domestic horses Type Journal Article
Year 2014 Publication Current Biology Abbreviated Journal
Volume 24 Issue (up) 15 Pages R677-R679
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Abstract Summary Sensitivity to the attentional states of others has adaptive advantages [1], and in social animals, attending to others is important for predator detection, as well as a pre-requisite for normal social functioning and more complex socio-cognitive abilities [2]. Despite widespread interest in how social species perceive attention in others, studies of non-human animals have been inconclusive about the detailed cues involved [3]. Previous work has focused on head and eye direction, overlooking the fact that many mammals have obvious and mobile ears that could act as a visual cue to attention. Here we report that horses use the head orientation of a conspecific to locate food, but that this ability is disrupted when parts of the face (the eyes and ears) are covered up with naturalistic masks. The ability to correctly judge attention also interacted with the identity of the model horse, suggesting that individual differences in facial features may influence the salience of cues. Our results indicate that a combination of head orientation with facial expression, specifically involving both the eyes and ears, is necessary for communicating social attention. These findings emphasise that in order to understand how attention is communicated in non-human animals, it is essential to consider a broad range of cues.
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5929
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Author Seed, A.M.; Clayton, N.S.; Emery, N.J.
Title Postconflict third-party affiliation in rooks, Corvus frugilegus Type Journal Article
Year 2007 Publication Current biology : CB Abbreviated Journal Curr Biol
Volume 17 Issue (up) 2 Pages 152-158
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Abstract Conflict features in the lives of many animal species and induces social stress mediated by glucocorticoid hormones [1]. Postconflict affiliation, between former opponents (reconciliation) or between former opponents and a bystander (third-party affiliation), has been suggested as a behavioral mechanism for reducing such stress [2], but has been studied almost exclusively in primates [3]. As with many primates, several bird species live in social groups and form affiliative relationships [4]. Do these distantly related animals also use affiliative behavior to offset the costs of conflict? We studied postconflict affiliation in a captive group of rooks. Unlike polygamous primates, monogamous rooks did not reconcile with former opponents. However, we found clear evidence of third-party affiliation after conflicts. Both initiators and targets of aggression engaged in third-party affiliation with a social partner and employed a specific behavior, bill twining, during the postconflict period. Both former aggressors and uninvolved third parties initiated affiliative contacts. Despite the long history of evolutionary divergence, the pattern of third-party affiliation in rooks is strikingly similar to that observed in tolerant primate species. Furthermore, the absence of reconciliation in rooks makes sense in light of the species differences in social systems.
Address Department of Experimental Psychology, University of Cambridge, Cambridge CB2 3EB, United Kingdom
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Language English Summary Language Original Title
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Notes PMID:17240341 Approved no
Call Number refbase @ user @ Serial 534
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Author Biro, D.; Sumpter, D.J.T.; Meade, J.; Guilford, T.
Title From Compromise to Leadership in Pigeon Homing Type Journal Article
Year 2006 Publication Current Biology Abbreviated Journal Curr Biol
Volume 16 Issue (up) 21 Pages 2123-2128
Keywords Animal Migration; Animals; Columbidae/*physiology; Decision Making; *Flight, Animal; *Homing Behavior; Models, Biological; Orientation; *Social Behavior; *Social Dominance
Abstract Summary A central problem faced by animals traveling in groups is how navigational decisions by group members are integrated, especially when members cannot assess which individuals are best informed or have conflicting information or interests , , , and . Pigeons are now known to recapitulate faithfully their individually distinct habitual routes home , and , and this provides a novel paradigm for investigating collective decisions during flight under varying levels of interindividual conflict. Using high-precision GPS tracking of pairs of pigeons, we found that if conflict between two birds' directional preferences was small, individuals averaged their routes, whereas if conflict rose over a critical threshold, either the pair split or one of the birds became the leader. Modeling such paired decision-making showed that both outcomes--compromise and leadership--could emerge from the same set of simple behavioral rules. Pairs also navigated more efficiently than did the individuals of which they were composed, even though leadership was not necessarily assumed by the more efficient bird. In the context of mass migration of birds and other animals, our results imply that simple self-organizing rules can produce behaviors that improve accuracy in decision-making and thus benefit individuals traveling in groups , and .
Address Department of Zoology, University of Oxford, Oxford OX1 3PS, United Kingdom. daro.biro@zoo.ox.ac.uk
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Language Englisch Summary Language Original Title
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ISSN 0960-9822 ISBN Medium
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Notes PMID:17084696 Approved no
Call Number Serial 2026
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