| Records |
Author  |
Mulcahy, N.J.; Call, J. |
| Title |
Apes save tools for future use |
Type |
Journal Article |
| Year |
2006 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
| Volume |
312 |
Issue |
5776 |
Pages |
1038-1040 |
| Keywords |
Animals; Association Learning; *Cognition; *Evolution; *Mental Processes; *Pan paniscus; Pan troglodytes; *Pongo pygmaeus |
| 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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English |
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1095-9203 |
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PMID:16709782 |
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refbase @ user @ |
Serial |
466 |
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| Author |
Morell, V. |
| Title |
Nicola Clayton profile. Nicky and the jays |
Type |
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| Year |
2007 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
| Volume |
315 |
Issue |
5815 |
Pages |
1074-1075 |
| Keywords |
Animals; *Behavior, Animal; *Cognition; England; History, 20th Century; History, 21st Century; Intelligence; Memory; Passeriformes/*physiology; Portraits |
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English |
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1095-9203 |
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PMID:17322042 |
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no |
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Equine Behaviour @ team @ |
Serial |
2833 |
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| Author |
Moeller, B.A.; McCall, C.A.; Silverman, S.J.; McElhenney, W.H. |
| Title |
Estimation of Saliva Production in Crib-Biting and Normal Horses |
Type |
Journal Article |
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Publication |
Journal of Equine Veterinary Science |
Abbreviated Journal |
Journal of Equine Veterinary Science |
| Volume |
28 |
Issue |
2 |
Pages |
85-90 |
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Increasing saliva flow to buffer the stomach has been hypothesized as a basis for crib-biting in horses. Saliva amounts in seven cribbing and seven noncribbing (control) horses were compared either pre- and post-cribbing or at pre- and post-5-minute intervals for controls. A pre-weighed cellulose sponge was used to collect saliva at the exit of the submandibular gland for 30 seconds, then reweighed. Data were analyzed as repeated measures. Mean saliva weight overall was similar between cribbing and control horses (1.2 and 1.5 g, respectively, SE = 0.2). However, mean saliva weight for pre- and post-samples (1.5 and 1.2 g, respectively, SE = 0.06) for all horses was significantly lower (P < .05) in the post-sample, indicating a drying effect of the sponge. Because of a strong tendency (P < .06) for a treatment-by-sampling time interaction, data were analyzed by sampling time and cribbing status. Mean saliva weights in the pre-sample were 0.43 g higher (P < .03) in control than cribbing horses. Control horses showed a 0.38 g decrease (P < .01) in saliva weight between pre- and post-samples, which was not evident in cribbing horses. To determine whether cribbing offset the saliva decrease seen in control horses, nine cribbing horses were sampled as before but prevented from cribbing between samples. A similar reduction (0.39 g, P < .01) in saliva weights between samples with cribbing allowed versus cribbing prevented was seen in these horses as was seen in control horses in the initial study. Because cribbing does produce saliva, gastrointestinal irritation could be a motivating cause for cribbing. |
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Elsevier |
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doi: 10.1016/j.jevs.2008.01.006 |
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no |
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Equine Behaviour @ team @ |
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5835 |
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| Author |
Milo, R.; Shen-Orr, S.; Itzkovitz, S.; Kashtan, N.; Chklovskii, D.; Alon, U. |
| Title |
Network Motifs: Simple Building Blocks of Complex Networks |
Type |
Journal Article |
| Year |
2002 |
Publication |
Science |
Abbreviated Journal |
Science |
| Volume |
298 |
Issue |
5594 |
Pages |
824-827 |
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| Abstract |
Complex networks are studied across many fields of science. To uncover their structural design principles, we defined “network motifs,” patterns of interconnections occurring in complex networks at numbers that are significantly higher than those in randomized networks. We found such motifs in networks from biochemistry, neurobiology, ecology, and engineering. The motifs shared by ecological food webs were distinct from the motifs shared by the genetic networks of Escherichia coli and Saccharomyces cerevisiae or from those found in the World Wide Web. Similar motifs were found in networks that perform information processing, even though they describe elements as different as biomolecules within a cell and synaptic connections between neurons in Caenorhabditis elegans. Motifs may thus define universal classes of networks. This approach may uncover the basic building blocks of most networks. |
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10.1126/science.298.5594.824 |
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no |
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Equine Behaviour @ team @ |
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5032 |
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| Author |
Milo, R.; Itzkovitz, S.; Kashtan, N.; Levitt, R.; Shen-Orr, S.; Ayzenshtat, I.; Sheffer, M.; Alon, U. |
| Title |
Superfamilies of Evolved and Designed Networks |
Type |
Journal Article |
| Year |
2004 |
Publication |
Science |
Abbreviated Journal |
Science |
| Volume |
303 |
Issue |
5663 |
Pages |
1538-1542 |
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Complex biological, technological, and sociological networks can be of very different sizes and connectivities, making it difficult to compare their structures. Here we present an approach to systematically study similarity in the local structure of networks, based on the significance profile (SP) of small subgraphs in the network compared to randomized networks. We find several superfamilies of previously unrelated networks with very similar SPs. One superfamily, including transcription networks of microorganisms, represents “rate-limited” information-processing networks strongly constrained by the response time of their components. A distinct superfamily includes protein signaling, developmental genetic networks, and neuronal wiring. Additional superfamilies include power grids, protein-structure networks and geometric networks, World Wide Web links and social networks, and word-adjacency networks from different languages. |
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10.1126/science.1089167 |
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no |
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Equine Behaviour @ team @ |
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5033 |
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| Author |
Milo, R.; Itzkovitz, S.; Kashtan, N.; Levitt, R.; Alon, U. |
| Title |
Response to Comment on “Network Motifs: Simple Building Blocks of Complex Networks” and “Superfamilies of Evolved and Designed Networks” |
Type |
Journal Article |
| Year |
2004 |
Publication |
Science |
Abbreviated Journal |
Science |
| Volume |
305 |
Issue |
5687 |
Pages |
1107d |
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10.1126/science.1100519 |
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no |
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Equine Behaviour @ team @ |
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5031 |
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| Author |
Miller, G. |
| Title |
Animal behavior. Signs of empathy seen in mice |
Type |
Journal Article |
| Year |
2006 |
Publication |
Science (New York, N.Y.) |
Abbreviated Journal |
Science |
| Volume |
312 |
Issue |
5782 |
Pages |
1860-1861 |
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Altruism; Animals; Behavior, Animal; *Empathy; Formaldehyde/administration & dosage; Mice/*psychology; Motivation; Pain/*psychology; *Social Behavior |
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English |
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1095-9203 |
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PMID:16809499 |
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no |
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refbase @ user @ |
Serial |
461 |
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| Author |
McLaren, B.E.; Peterson, R.O. |
| Title |
Wolves, Moose, and Tree Rings on Isle Royale |
Type |
Journal Article |
| Year |
1994 |
Publication |
Science |
Abbreviated Journal |
Science |
| Volume |
266 |
Issue |
5190 |
Pages |
1555-1558 |
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Investigation of tree growth in Isle Royale National Park in Michigan revealed the influence of herbivores and carnivores on plants in an intimately linked food chain. Plant growth rates were regulated by cycles in animal density and responded to annual changes in primary productivity only when released from herbivory by wolf predation. Isle Royale's dendrochronology complements a rich literature on food chain control in aquatic systems, which often supports a trophic cascade model. This study provides evidence of top-down control in a forested ecosystem. |
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no |
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Equine Behaviour @ team @ |
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4995 |
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McGreevy, P.D.; Oddie, C.; Burton, F.L.; McLean, A.N. |
| Title |
The horse–human dyad: Can we align horse training and handling activities with the equid social ethogram? |
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Journal Article |
| Year |
2009 |
Publication |
The Veterinary Journal |
Abbreviated Journal |
Special Issue: Equitation Science |
| Volume |
181 |
Issue |
1 |
Pages |
12-18 |
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Horse training; Social inter- and intra-specific communication; Learning; Counter–predator behaviour |
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This article examines the recently completed equid ethogram and shows how analogues of social interactions between horses may occur in various human–horse interactions. It discusses how some specific horse–horse interactions have a corresponding horse–human interaction – some of which may be directly beneficial for the horse while others may be unusual or even abnormal. It also shows how correspondent behaviours sometimes become inappropriate because of their duration, consistency or context. One analogue is unlikely to hold true for all horse–human contexts, so when applying any model from horse–horse interactions to human–horse interactions, the limitations of the model may eclipse the intended outcome of the intervention. These limitations are especially likely when the horse is being ridden. Such analyses may help to determine the validity of extrapolating intra-specific interactions to the inter-specific setting, as is advocated by some popular horse-training methods, and highlight the subsequent limitations where humans play the role of the ‘alpha mare’ or leader in horse handling and training. This examination provides a constructive framework for further informed debate and empirical investigation of the critical features of successful intra-specific interactions. |
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1090-0233 |
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no |
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Equine Behaviour @ team @ |
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5729 |
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Marr, I.; Preisler, V.; Farmer, K.; Stefanski, V.; Krueger, K. |
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Non-invasive stress evaluation in domestic horses (Equus caballus): impact of housing conditions on sensory laterality and immunoglobulin A |
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Journal Article |
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2020 |
Publication |
Royal Society Open Science |
Abbreviated Journal |
Royal Society Open Science |
| Volume |
7 |
Issue |
2 |
Pages |
191994 |
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The study aimed to evaluate sensory laterality and concentration of faecal immunoglobulin A (IgA) as non-invasive measures of stress in horses by comparing them with the already established measures of motor laterality and faecal glucocorticoid metabolites (FGMs). Eleven three-year-old horses were exposed to known stressful situations (change of housing, initial training) to assess the two new parameters. Sensory laterality initially shifted significantly to the left and faecal FGMs were significantly increased on the change from group to individual housing and remained high through initial training. Motor laterality shifted significantly to the left after one week of individual stabling. Faecal IgA remained unchanged throughout the experiment. We therefore suggest that sensory laterality may be helpful in assessing acute stress in horses, especially on an individual level, as it proved to be an objective behavioural parameter that is easy to observe. Comparably, motor laterality may be helpful in assessing long-lasting stress. The results indicate that stress changes sensory laterality in horses, but further research is needed on a larger sample to evaluate elevated chronic stress, as it was not clear whether the horses of the present study experienced compromised welfare, which it has been proposed may affect faecal IgA. |
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Royal Society |
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doi: 10.1098/rsos.191994 |
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Equine Behaviour @ team @ |
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6608 |
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