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Stout, I.J.; Clifford, C.M.; Keirans, J.E.; Portman, R.W. |
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Dermacentor variabilis (Say) (Acarina: Ixodidae) established in southeastern Washington and northern Idaho |
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Journal Article |
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Year |
1971 |
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Journal of Medical Entomology |
Abbreviated Journal |
J Med Entomol |
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8 |
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2 |
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143-147 |
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Animals; Arthropod Vectors; Disease Reservoirs/*epidemiology; Dogs; Ecology; Female; Horses; Humans; Idaho; Larva; Male; Seasons; Sheep; Tick Infestations/*epidemiology/veterinary; Ticks/*classification; Washington; Zoonoses |
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0022-2585 |
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PMID:5157834 |
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Equine Behaviour @ team @ |
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2729 |
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Author |
Gácsi, M.; Miklósi, Á.; Varga, O.; Topál, J.; Csányi, V. |
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Title |
Are readers of our face readers of our minds? Dogs (Canis familiaris) show situation-dependent recognition of human's attention |
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Journal Article |
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Year |
2004 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
7 |
Issue |
3 |
Pages |
144-153 |
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Keywords |
Animals; Association Learning; *Attention; Bonding, Human-Pet; Cognition; *Concept Formation; Cues; Dogs/*psychology; *Facial Expression; Female; Humans; Male; *Nonverbal Communication; *Recognition (Psychology); Social Behavior |
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Abstract |
The ability of animals to use behavioral/facial cues in detection of human attention has been widely investigated. In this test series we studied the ability of dogs to recognize human attention in different experimental situations (ball-fetching game, fetching objects on command, begging from humans). The attentional state of the humans was varied along two variables: (1) facing versus not facing the dog; (2) visible versus non-visible eyes. In the first set of experiments (fetching) the owners were told to take up different body positions (facing or not facing the dog) and to either cover or not cover their eyes with a blindfold. In the second set of experiments (begging) dogs had to choose between two eating humans based on either the visibility of the eyes or direction of the face. Our results show that the efficiency of dogs to discriminate between “attentive” and “inattentive” humans depended on the context of the test, but they could rely on the orientation of the body, the orientation of the head and the visibility of the eyes. With the exception of the fetching-game situation, they brought the object to the front of the human (even if he/she turned his/her back towards the dog), and preferentially begged from the facing (or seeing) human. There were also indications that dogs were sensitive to the visibility of the eyes because they showed increased hesitative behavior when approaching a blindfolded owner, and they also preferred to beg from the person with visible eyes. We conclude that dogs are able to rely on the same set of human facial cues for detection of attention, which form the behavioral basis of understanding attention in humans. Showing the ability of recognizing human attention across different situations dogs proved to be more flexible than chimpanzees investigated in similar circumstances. |
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Comparative Ethology Research Group, Hungarian Academy of Sciences, Pazmany P. 1/c., 1117, Budapest, Hungary. gm.art@axelero.hu |
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1435-9448 |
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PMID:14669075 |
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Equine Behaviour @ team @ |
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2547 |
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Author |
Arluke, A. |
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Title |
The use of dogs in medical and veterinary training: understanding and approaching student uneasiness |
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Journal Article |
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Year |
2004 |
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Journal of Applied Animal Welfare Science : JAAWS |
Abbreviated Journal |
J Appl Anim Welf Sci |
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7 |
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3 |
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197-204 |
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*Animal Experimentation; Animals; *Animals, Laboratory; Cadaver; Comprehension; Dogs; Education, Veterinary/*ethics/*methods; Humans; Massachusetts; Schools, Veterinary; Students, Medical/*psychology; Biomedical and Behavioral Research |
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Tajen Institute of Technology, Taiwan. a.arluke@neu.edu |
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1088-8705 |
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PMID:15498727; KIE: KIE Bib: animal experimentation |
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Equine Behaviour @ team @ |
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2755 |
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Author |
Hare, J.F.; Sealy, S.G.; Underwood, T.J.; Ellison, K.S.; Stewart, R.L.M. |
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Title |
Evidence of self-referent phenotype matching revisited: airing out the armpit effect |
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Journal Article |
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Year |
2003 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
6 |
Issue |
1 |
Pages |
65-68 |
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Keywords |
Alleles; Animals; Birds; Cricetinae; Dogs; Humans; Invertebrates; Learning; *Odors; Pedigree; Phenotype; *Recognition (Psychology); Self Psychology; *Social Behavior |
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Department of Zoology, University of Manitoba, Winnipeg, MB R3T 2N2, Canada. harejf@cc.umanitoba.ca |
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1435-9448 |
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PMID:12701614 |
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Equine Behaviour @ team @ |
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2576 |
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Author |
Fiset, S.; Beaulieu, C.; Landry, F. |
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Title |
Duration of dogs' (Canis familiaris) working memory in search for disappearing objects |
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Journal Article |
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Year |
2003 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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6 |
Issue |
1 |
Pages |
1-10 |
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Keywords |
Animals; Dogs/*psychology; *Exploratory Behavior; Female; Male; *Memory; Visual Perception |
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Two experiments explored the duration of dogs' working memory in an object permanence task: a delay was introduced between the disappearance of a moving object behind a box and the beginning of the search by the animal. In experiment 1, the dogs were tested with retention intervals of 0, 10, 30, and 60 s. Results revealed that the dogs' accuracy declined as a function of the length of the retention interval but remained above chance for each retention interval. In experiment 2, with new subjects, longer retention intervals (0, 30, 60, 120, and 240 s) were presented to the dogs. Results replicated findings from experiment 1 and revealed that the dogs' accuracy remained higher than chance level with delays up to 240 s. In both experiments, the analysis of errors also showed that the dogs searched as a function of the proximity of the target box and were not subject to intertrial proactive interference. In the discussion, we explore different alternatives to explain why dogs' search behaviour for hidden objects decreased as a function of the retention intervals. |
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Secteur Sciences Humaines, Universite de Moncton, Campus d'Edmundston, E3V 2S8, Edmundston, New Brunswick, Canada. sfiset@umce.ca |
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1435-9448 |
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PMID:12658530 |
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Equine Behaviour @ team @ |
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2586 |
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Author |
Chilton, N.B. |
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Title |
The use of nuclear ribosomal DNA markers for the identification of bursate nematodes (order Strongylida) and for the diagnosis of infections |
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Journal Article |
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Year |
2004 |
Publication |
Animal Health Research Reviews / Conference of Research Workers in Animal Diseases |
Abbreviated Journal |
Anim Health Res Rev |
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5 |
Issue |
2 |
Pages |
173-187 |
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Animals; Birds; Cats; DNA Primers; DNA, Helminth/*analysis; DNA, Ribosomal/*analysis; Dogs; Horses; Molecular Diagnostic Techniques/veterinary; Ruminants; Strongylida/*genetics; Strongylida Infections/diagnosis/*veterinary |
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Many bursate nematodes are of major importance to animal health. Animals are often parasitized by multiple species that differ in their prevalence, relative abundance and/or pathogenicity. Implementation of effective management strategies for these parasites requires reliable methods for their detection in hosts, identification to the species level and measurement of intensity of infection. One major problem is the difficulty of accurately identifying and distinguishing many species of bursate nematode because of the remarkable morphological similarity of their eggs and larvae. The inability to identify, with confidence, individual nematodes (irrespective of their life-cycle stage) to the species level by morphological methods has often led to a search for species-specific genetic markers. Studies over the past 15 years have shown that sequences of the internal transcribed spacers of ribosomal DNA provide useful genetic markers, providing the basis for the development of PCR-based diagnostic tools. Such molecular methods represent powerful tools for studying the systematics, epidemiology and ecology of bursate nematodes and, importantly, for the specific diagnosis of infections in animals and humans, thus contributing to improved control and prevention strategies for these parasites. |
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Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, Saskatchewan S7N 5E2, Canada. neil.chilton@usask.ca |
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1466-2523 |
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PMID:15984323 |
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Equine Behaviour @ team @ |
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2628 |
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Author |
West, R.E.; Young, R.J. |
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Do domestic dogs show any evidence of being able to count? |
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Journal Article |
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Year |
2002 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
5 |
Issue |
3 |
Pages |
183-186 |
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Keywords |
Animal Feed; Animals; Behavior, Animal; *Cognition; *Dogs; Female; Male; *Mathematics; Reinforcement (Psychology); Visual Perception |
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Numerical competence has been demonstrated in a wide range of animal species. The level of numerical abilities shown ranges from simple relative numerousness judgements to true counting. In this study we used the preferential looking technique to test whether 11 pet dogs could count. The dogs were presented with three simple calculations: “1+1=2”; “1+1=1”; and “1+1=3”. These calculations were performed by presenting the dogs with treats that were placed behind a screen that allowed manipulation of the outcome of the calculation. When the dogs expected the outcome they spent the same amount of time looking at the result of the calculation as they did on the initial presentation. However, when the result was unexpected dogs spent significantly longer looking at the outcome of the calculation. The results suggest that the dogs were anticipating the outcome of the calculations they observed, thus suggesting that dogs may have a rudimentary ability to count. |
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De Montfort University-Lincoln, Caythorpe, Grantham, Lincolnshire, NG32 3EP, UK |
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1435-9448 |
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PMID:12357291 |
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Equine Behaviour @ team @ |
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2594 |
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Tomkins, L.M.; McGreevy, P.D.; Branson, N.J. |
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Title |
Lack of standardization in reporting motor laterality in the domestic dog (Canis familiaris) |
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Journal Article |
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2010 |
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Journal of Veterinary Behaviour |
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5 |
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5 |
Pages |
235-239 |
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dog; motor laterality; lateralization; paw preference; standardization |
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Over the past 2 decades, numerous studies have been undertaken to assess motor laterality in the domestic dog. In anticipation of growth in this area of enquiry, we decided to review the literature on canine motor biases to identify any shortcomings, reflect on the lessons to be learned from and offer ways forward for future research into canine laterality. The aim of this review is to (i) summarize motor laterality findings in the dog, (ii) highlight areas lacking in standardization, and (iii) propose necessary criteria for future tests and global reporting protocols. Our review of the literature highlighted the lack of standardization between studies in task selection, sample size, number of behavior scores recorded, and the methods by which motor laterality were classified and reported. This review illustrates the benefits of standardizing methods of motor laterality assessment so that comparisons can be made between the populations sampled. By adopting such an approach, researchers should mutually benefit as motor laterality data could then be compared and subjected to meta-analysis. |
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1558-7878 |
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Equine Behaviour @ team @ S1558-7878(10)00038-9 |
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5378 |
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Tomkins, L.M.; Williams, K.A.; Thomson, P.C.; McGreevy, P.D. |
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Title |
Sensory Jump Test as a measure of sensory (visual) lateralization in dogs (Canis familiaris) |
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Journal Article |
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2010 |
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Journal of Veterinary Behavior |
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5 |
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5 |
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256-267 |
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sensory lateralization; monocular vision; binocular vision; jump kinematics; dog |
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Sensory lateralization in dogs (n = 74) was investigated in this study using our innovation, the Sensory Jump Test. This required the modification of head halters to create three different ocular treatments (binocular, right, and left monocular vision) for eye preference assessment in a jumping task. Ten jumps were recorded as a jump set for each treatment. Measurements recorded included (i) launch and landing paws, (ii) type of jump, (iii) approach distance, (iv) clearance height of the forepaw, hindpaw, and the lowest part of the body to clear the jump, and (v) whether the jump was successful. Factors significantly associated with these jump outcomes included ocular treatment, jump set number, and replication number. Most notably, in the first jump set, findings indicated a left hemispheric dominance for the initial navigation of the Sensory Jump Test, as left monocular vision (LMV) compromised of jumping more than right monocular (RMV) and binocular vision, with a significantly reduced approach distance and forepaw clearance observed in dogs with LMV. However, by the third jump set, dogs undergoing LMV launched from a greater approach distance and with a higher clearance height, corresponding to an increase in success rate of the jump, in comparison with RMV and binocular vision dogs. A marginally non-significant RMV bias was observed for eye preference based on the laterality indices for approach distance (P = 0.060) and lowest body part clearance height (P = 0.067). A comparison between eye preference and launching or landing paws showed no association between these measures of sensory and motor laterality. To our knowledge, this is the first study to report on sensory lateralization in the dog, and furthermore, to compare both motor and sensory laterality in dogs. |
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1558-7878 |
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Equine Behaviour @ team @ S1558-7878(10)00019-5 |
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5379 |
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Washino, R.K.; Tempelis, C.H. |
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Host-feeding patterns of Anopheles freeborni in the Sacramento Valley, California |
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Journal Article |
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1967 |
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Journal of Medical Entomology |
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J Med Entomol |
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4 |
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3 |
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311-314 |
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Animals; Anopheles/*growth & development; California; Cats; Cattle; Dogs; Ecology; Horses; Humans; *Insect Vectors; Rabbits; Rodentia; Swine |
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0022-2585 |
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PMID:6052143 |
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Equine Behaviour @ team @ |
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2745 |
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