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Author |
Liebal, K.; Pika, S.; Tomasello, M. |
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Title |
Social communication in siamangs (Symphalangus syndactylus): use of gestures and facial expressions |
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Journal Article |
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Year |
2004 |
Publication |
Primates |
Abbreviated Journal |
Primates |
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Volume |
45 |
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1 |
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41-57 |
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Age Factors; *Animal Communication; Animals; Animals, Zoo/*physiology; *Cognition; Female; Hylobates/*physiology; *Kinesics; Male; Sex Factors; *Social Behavior; Video Recording |
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Abstract |
The current study represents the first systematic investigation of the social communication of captive siamangs (Symphalangus syndactylus). The focus was on intentional signals, including tactile and visual gestures, as well as facial expressions and actions. Fourteen individuals from different groups were observed and the signals used by individuals were recorded. Thirty-one different signals, consisting of 12 tactile gestures, 8 visual gestures, 7 actions, and 4 facial expressions, were observed, with tactile gestures and facial expressions appearing most frequently. The range of the signal repertoire increased steadily until the age of six, but declined afterwards in adults. The proportions of the different signal categories used within communicative interactions, in particular actions and facial expressions, also varied depending on age. Group differences could be traced back mainly to social factors or housing conditions. Differences in the repertoire of males and females were most obvious in the sexual context. Overall, most signals were used flexibly, with the majority performed in three or more social contexts and almost one-third of signals used in combination with other signals. Siamangs also adjusted their signals appropriately for the recipient, for example, using visual signals most often when the recipient was already attending (audience effects). These observations are discussed in the context of siamang ecology, social structure, and cognition. |
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Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany. liebal@eva.mpg.de |
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0032-8332 |
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PMID:14655035 |
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Equine Behaviour @ team @ |
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2812 |
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Author |
Griffin, D.R. |
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Title |
Animals know more than we used to think |
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2001 |
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Proceedings of the National Academy of Sciences of the United States of America |
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Proc. Natl. Acad. Sci. U.S.A. |
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98 |
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9 |
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4833-4834 |
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Animal Communication; Animals; Attention/physiology; Brain/physiology; Choice Behavior/physiology; Cognition/*physiology; Humans; Macaca mulatta/physiology/*psychology; Memory/*physiology; Optic Disk/physiology; Psychological Tests |
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0027-8424 |
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PMID:11320232 |
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Equine Behaviour @ team @ |
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2823 |
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Author |
Cohen, J. |
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Animal behavior. The world through a chimp's eyes |
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2007 |
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Science (New York, N.Y.) |
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Science |
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316 |
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5821 |
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44-45 |
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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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Equine Behaviour @ team @ |
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2832 |
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Hopkins, W.D.; Taglialatela, J.P.; Leavens, D.A. |
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Title |
Chimpanzees differentially produce novel vocalizations to capture the attention of a human |
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Journal Article |
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2007 |
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Animal Behaviour. |
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Anim. Behav. |
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73 |
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2 |
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281-286 |
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acoustic signals; chimpanzee; cognition; Pan troglodytes; vocal communication |
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Chimpanzees, Pan troglodytes, produce numerous species-atypical signals when raised in captivity. We examined contextual elements of the use of two of these vocal signals, the `raspberry' and the extended grunt. Our results demonstrate that these vocalizations are not elicited by the presence of food, but instead function as attention-getting signals. These findings reveal a heretofore underappreciated category of animal signals: attention-getting sounds produced in novel environmental circumstances. The invention and use of species-atypical signals, considered in relation to group differences in signalling repertoires in apes in their natural habitats, may index a generative capacity in these hominoid species without obvious corollary in other primate species. |
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Equine Behaviour @ team @ |
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2889 |
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Feist, J.D.; McCullough, D.R. |
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Title |
Behavior patterns and communication in feral horses |
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1976 |
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Zeitschrift für Tierpsychologie |
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Z. Tierpsychol. |
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41 |
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4 |
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337-371 |
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*Animal Communication; Animals; Female; *Horses; Male; Maternal Behavior; Sexual Behavior, Animal; *Social Behavior; Social Dominance |
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The social behavior of feral horses was studied in the western United States. Stable harem groups with a dominant stallion and bachelor hermaphrodite hermaphrodite groups occupied overlapping home ranges. Groups spacing, but not territoriality, was expressed. Harem group, stability resulted from strong dominance by dominant stallions, and fidelity of group members. Eliminations of group members were usually marked by urine of the dominant stallion. Hermaphrodite-hermaphrodite aggression involved spacing between harems and dominance in bachelor groups. Marking with feces was important in hermaphrodite-hermaphrodite interactions. Foaling occurred in May and early June, following the post-partum estrous. All breeding was done by harem stallions. Young were commonly nursed through yearling age. These horses showed social organizations similar to other feral horses and plains zebras. |
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0044-3573 |
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PMID:983427 |
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Equine Behaviour @ team @ |
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3995 |
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Kingston, J.K.; Soppet, G.M.; Rogers, C.W.; Firth, E.C. |
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Title |
Use of a global positioning and heart rate monitoring system to assess training load in a group of thoroughbred racehorses |
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Journal Article |
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Year |
2006 |
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Equine Veterinary Journal. Supplement |
Abbreviated Journal |
Equine Vet J Suppl |
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36 |
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106-109 |
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Analysis of Variance; Animals; Female; *Geographic Information Systems; Heart Rate/*physiology; Horses/*physiology; Male; Monitoring, Physiologic/veterinary; Physical Conditioning, Animal/*physiology; Satellite Communications; Telemetry/methods/*veterinary |
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REASONS FOR PERFORMING STUDY: Training is an important variable for determining athletic success. Nonetheless, there has been minimal scientific evaluation of racehorse training programmes. Training of racehorses focuses on running the horses at certain speeds using a combination of a stopwatch and rider's 'feel' for a horse's work intensity. Consequently, actual work intensity for individual horses is not clearly defined. OBJECTIVES: To 1) utilise a combined global positioning system (GPS) and heart rate monitor system to quantify training intensity and physiological responses of a group of racehorses undergoing training and racing; and 2) compare the workload measured by the GPS to that timed and recorded daily by a racehorse trainer. METHODS: Nineteen racehorses age 3 years were followed through a traditional training and racing programme over a 4 month period. Daily GPS and heart rate data together with the trainer's timing and distance data were collected while the horses were trained. Data were analysed using an ANOVA for repeated measures. RESULTS: The combined GPS/heart rate monitoring system detected different heart rate responses in individual horses subjected to the same training workouts. The average speeds detected with the GPS system were in agreement with average speeds timed by the trainer. However, peak speeds reached during training were significantly greater (P<0.05) than those estimated with stopwatch timing. The horses average training speeds increased significantly over the duration of the training period. CONCLUSIONS AND POTENTIAL RELEVANCE: The results from this study show that a GPS/heart rate monitor system provides a reliable measure of daily workload in horses during training. This technology provides a detailed picture of horses' training sessions and has the potential to provide a greater insight into the types of training that may predispose horses to injury. |
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Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand |
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PMID:17402402 |
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Equine Behaviour @ team @ |
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4014 |
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Hebenbrock, M.; Due, M.; Holzhausen, H.; Sass, A.; Stadler, P.; Ellendorff, F. |
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A new tool to monitor training and performance of sport horses using global positioning system (GPS) with integrated GSM capabilities |
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2005 |
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DTW. Deutsche Tierarztliche Wochenschrift |
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Dtsch Tierarztl Wochenschr |
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112 |
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7 |
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262-265 |
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Animals; Heart Rate; Horses/*physiology; *Physical Conditioning, Animal; Population Surveillance; *Satellite Communications; Telemetry/methods/*veterinary |
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Global Positioning Systems (GPS) are considered suitable to monitor the position and velocity of horses during cross-country competition or in training. Furthermore, simultaneous recording of life data such as heart rate could be useful to assess the horse's condition during exercise. To test the suitability and reliability of a commercially available GPS system with integrated heart rate recording system and with built in GSM for data transmission, the Fidelak Equipilot Type EP-2003-15/G-2.11 (EP-15/G) was evaluated first for reliability of pulse recording from a pulse generator within the physiological range of horses; furthermore distance, velocity and heart rate recordings were carried out on a standard 1000 m field track with five repetitions. Agreement (% deviation from actually measured distance and from stopwatch-distance based velocity calculations) and variability (Coefficient of Variation for distance, velocity, heart rate) were calculated. From the results it was safe to assume that the heart rate sensor recorded horse heart rates at a high degree of accuracy. Overall distances and velocities are in high agreement with actually measured values. However, overall variability expressed in terms of relative variability (C.V.) is smaller for distance recording (C.V. 0.68%) when compared to velocity (C.V. 1.01%). The system tested is suitable and reliable for simultaneously recording of distance, velocity and heart rates for horses during cross country exercise. GPS-based monitoring of movement along with simultaneous recording of physiological data and the possibility to call upon data will not only be of benefit for training horses or for surveillance during competition, it may also be suitable for distant patient monitoring and in behavioural studies as well as in veterinary medicine in general. |
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Institute for Animal Breeding Mariensee, Federal Agricultural Research Centre (FAL), Neustadt, Germany |
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0341-6593 |
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PMID:16124700 |
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Equine Behaviour @ team @ |
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4035 |
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Author |
Marino, L. |
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Convergence of complex cognitive abilities in cetaceans and primates |
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Journal Article |
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2002 |
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Brain, Behavior and Evolution |
Abbreviated Journal |
Brain Behav Evol |
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59 |
Issue |
1-2 |
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21-32 |
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Animal Communication; Animals; Brain/physiology; Cerebral Cortex/physiology; Cetacea/*physiology; Cognition/*physiology; *Evolution; Humans; Intelligence; Primates/*physiology |
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What examples of convergence in higher-level complex cognitive characteristics exist in the animal kingdom? In this paper I will provide evidence that convergent intelligence has occurred in two distantly related mammalian taxa. One of these is the order Cetacea (dolphins, whales and porpoises) and the other is our own order Primates, and in particular the suborder anthropoid primates (monkeys, apes, and humans). Despite a deep evolutionary divergence, adaptation to physically dissimilar environments, and very different neuroanatomical organization, some primates and cetaceans show striking convergence in social behavior, artificial 'language' comprehension, and self-recognition ability. Taken together, these findings have important implications for understanding the generality and specificity of those processes that underlie cognition in different species and the nature of the evolution of intelligence. |
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Neuroscience and Behavioral Biology Program, Emory University, Atlanta, Ga. 30322, USA. lmarino@emory.edu |
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0006-8977 |
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PMID:12097858 |
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Equine Behaviour @ team @ |
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4158 |
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Author |
Hart, D.; Whitlow, J.W.J. |
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Title |
The experience of self in the bottlenose dolphin |
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1995 |
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Consciousness and Cognition |
Abbreviated Journal |
Conscious Cogn |
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4 |
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2 |
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244-247 |
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Animal Communication; Animals; *Awareness; Body Image; Dolphins/*psychology; Female; Humans; Male; *Self Concept; Social Behavior; Species Specificity; *Television; *Visual Perception |
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Marten and Psarakos have presented some evidence which suggests that objective self-awareness and possibly representations of self may characterize the dolphins' experience of self. Their research demonstrates the possibility of similarities in the sense of self between primate species and dolphins, although whether dolphins have subjective self-awareness, personal memories, and theories of self--all important facets of the sense of self in humans--was not examined. Clearly, even this limited evidence was difficult to achieve; the difficulties in adapting methods and coding behavior are quite apparent in their report. Future progress, however, may depend upon clarification of what are the necessary components for a sense of self and an explication of how these might be reflected in dolphin behavior. We are mindful of the authors' point (pp. 219 and 220) that the dolphin lives more in an acoustic than a visual environment. Thus, while tasks relying upon vision may reveal the presence or absence of the sense of self in primates, it might well be the case that in dolphins self-related experiences might be better revealed in auditory tasks. But then, what is the nature of human self-awareness in terms of audition? While both conceptual and methodological hurdles remain, Marten and Psarakos have demonstrated that important questions can be asked about the minds and phenomenal worlds of nonanthropoid species. |
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Department of Psychology, Rutgers University, Camden, New Jersey 08102, USA |
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1053-8100 |
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PMID:8521264 |
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Equine Behaviour @ team @ |
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4162 |
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Anderson, J.R. |
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Self-recognition in dolphins: credible cetaceans; compromised criteria, controls, and conclusions |
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1995 |
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Consciousness and Cognition |
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Conscious Cogn |
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4 |
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2 |
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239-243 |
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Animal Communication; Animals; *Awareness; Discrimination Learning; Dolphins/*psychology; Female; Male; Orientation; *Self Concept; Social Behavior; *Television; *Visual Perception |
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Laboratoire de Psychophysiologie, CNRS URA 1295, Universite Louis Pasteur, Strasbourg, France |
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1053-8100 |
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PMID:8521263 |
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Equine Behaviour @ team @ |
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4163 |
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