Records |
Author |
Krueger, K.; Trager, L.; Farmer, K.; Byrne, R. |
Title |
Tool Use in Horses |
Type |
Journal Article |
Year |
2022 |
Publication |
Animals |
Abbreviated Journal |
Animals |
Volume |
12 |
Issue |
15 |
Pages |
1876 |
Keywords |
crowdsourcing; horse; innovation; mule; management; tool use |
Abstract |
Tool use has not yet been confirmed in horses, mules or donkeys. As this subject is difficult to research with conventional methods, we used a crowdsourcing approach to gather data. We contacted equid owners and carers and asked them to report and video examples of �unusual� behaviour via a dedicated website. We also searched YouTube and Facebook for videos of equids showing tool use. From 635 reports, including 1014 behaviours, we found 20 cases of tool use, 13 of which were unambiguous in that it was clear that the behaviour was not trained, caused by reduced welfare, incidental or accidental. We then assessed (a) the effect of management conditions on tool use and (b) whether the animals used tools alone, or socially, involving other equids or humans. We found that management restrictions were associated with corresponding tool use in 12 of the 13 cases (p = 0.01), e.g., equids using sticks to scrape hay within reach when feed was restricted. Furthermore, 8 of the 13 cases involved other equids or humans, such as horses using brushes to groom others. The most frequent tool use was for foraging, with seven examples, tool use for social purposes was seen in four cases, and there was just one case of tool use for escape. There was just one case of tool use for comfort, and in this instance, there were no management restrictions. Equids therefore can develop tool use, especially when management conditions are restricted, but it is a rare occurrence. |
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Animals |
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12 |
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15 |
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2076-2615 |
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Equine Behaviour @ team @ |
Serial |
6695 |
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Author |
Visalberghi E; Trinca L |
Title |
Tool use in capuchin monkeys: distinguishing between performing and understanding |
Type |
Journal Article |
Year |
1989 |
Publication |
Primates |
Abbreviated Journal |
Primates |
Volume |
30 |
Issue |
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Pages |
511 |
Keywords |
Tool use – Cebus apella – Mental representation |
Abstract |
A horizontal plexiglas tube containing a food-reward was presented to four naive tufted capuchins and suitable sticks were provided to push the reward out. Three monkeys out of four spontaneously used the tools and showed very different styles of solving the task. In more complex conditions, in which the sticks needed to be combined or actively modified in order to become effective, the monkeys were always successful; however, their performance was loaded with errors which did not disappear throughout the trials. Evidence of a difference between success in solving the problem and its understanding was found. This suggests that although capuchins can discover new means through active experimentation, they do not mentally represent the characteristics necessary for a tool to be effective, nor do they modify the tool appropriately beforehand. At this level, a major difference with chimpanzees emerges. |
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Equine Behaviour @ team @ |
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3047 |
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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 |
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Pages |
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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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0960-9822 |
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Equine Behaviour @ team @ |
Serial |
6581 |
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