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Author Pinker, S. url  openurl
  Title COGNITION:Enhanced: Out of the Minds of Babes Type Journal Article
  Year 1999 Publication Science Abbreviated Journal Science  
  Volume (down) 283 Issue 5398 Pages 40-41  
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  Notes 10.1126/science.283.5398.40 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2956  
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Author Mizuguchi, M.; Arai, M.; Ke, Y.; Nitta, K.; Kuwajima, K. url  openurl
  Title Equilibrium and kinetics of the folding of equine lysozyme studied by circular dichroism spectroscopy Type Journal Article
  Year 1998 Publication Journal of Molecular Biology Abbreviated Journal  
  Volume (down) 283 Issue 1 Pages 265-277  
  Keywords equine lysozyme; protein folding; molten globule; stopped-flow; folding intermediate  
  Abstract The equilibrium unfolding and the kinetics of unfolding and refolding of equine lysozyme, a Ca2+-binding protein, were studied by means of circular dichroism spectra in the far and near-ultraviolet regions. The transition curves of the guanidine hydrochloride-induced unfolding measured at 230 nm and 292.5 nm, and for the apo and holo forms of the protein have shown that the unfolding is well represented by a three-state mechanism in which the molten globule state is populated as a stable intermediate. The molten globule state of this protein is more stable and more native-like than that of α-lactalbumin, a homologous protein of equine lysozyme. The kinetic unfolding and refolding of the protein were induced by concentration jumps of the denaturant and measured by stopped-flow circular dichroism. The observed unfolding and refolding curves both agreed well with a single-exponential function. However, in the kinetic refolding reactions below 3 M guanidine hydrochloride, a burst-phase change in the circular dichroism was present, and the burst-phase intermediate in the kinetic refolding is shown to be identical with the molten globule state observed in the equilibrium unfolding. Under a strongly native condition, virtually all the molecules of equine lysozyme transform the structure from the unfolded state into the molten globule, and the subsequent refolding takes place from the molten globule state. The transition state of folding, which may exist between the molten globule and the native states, was characterized by investigating the guanidine hydrochloride concentration-dependence of the rate constants of refolding and unfolding. More than 80% of the hydrophobic surface of the protein is buried in the transition state, so that it is much closer to the native state than to the molten globule in which only 36% of the surface is buried in the interior of the molecule. It is concluded that all the present results are best explained by a sequential model of protein folding, in which the molten globule state is an obligatory folding intermediate on the pathway of folding.  
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  Call Number refbase @ user @ Serial 3990  
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Author Chapron, G.; Treves, A. url  doi
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  Title Blood does not buy goodwill: allowing culling increases poaching of a large carnivore Type Journal Article
  Year 2016 Publication Proc Biol Sci Abbreviated Journal Proc. R. Soc. Lond. B  
  Volume (down) 283 Issue 1830 Pages  
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  Abstract Quantifying environmental crime and the effectiveness of policy interventions is difficult because perpetrators typically conceal evidence. To prevent illegal uses of natural resources, such as poaching endangered species, governments have advocated granting policy flexibility to local authorities by liberalizing culling or hunting of large carnivores. We present the first quantitative evaluation of the hypothesis that liberalizing culling will reduce poaching and improve population status of an endangered carnivore. We show that allowing wolf (Canis lupus) culling was substantially more likely to increase poaching than reduce it. Replicated, quasi-experimental changes in wolf policies in Wisconsin and Michigan, USA, revealed that a repeated policy signal to allow state culling triggered repeated slowdowns in wolf population growth, irrespective of the policy implementation measured as the number of wolves killed. The most likely explanation for these slowdowns was poaching and alternative explanations found no support. When the government kills a protected species, the perceived value of each individual of that species may decline; so liberalizing wolf culling may have sent a negative message about the value of wolves or acceptability of poaching. Our results suggest that granting management flexibility for endangered species to address illegal behaviour may instead promote such behaviour.  
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  Call Number Equine Behaviour @ team @ Serial 6379  
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Author de Waal, F.B.; Aureli, F.; Judge, P.G. openurl 
  Title Coping with crowding Type Journal Article
  Year 2000 Publication Scientific American Abbreviated Journal Sci Am  
  Volume (down) 282 Issue 5 Pages 76-81  
  Keywords *Adaptation, Psychological; Animals; Behavior, Animal; Emotions; Female; Grooming; Homicide; Humans; Macaca mulatta; Male; Pan troglodytes; *Population Density; Primates; Rodentia; Rural Population; Territoriality; Urban Population; Violence  
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  Address Living Links Center, Yerkes Regional Primate Research Center, Atlanta, USA  
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  ISSN 0036-8733 ISBN Medium  
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  Notes PMID:11056991 Approved no  
  Call Number refbase @ user @ Serial 184  
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Author Brannon, E.M.; Terrace, H.S. openurl 
  Title Ordering of the numerosities 1 to 9 by monkeys Type Journal Article
  Year 1998 Publication Science (New York, N.Y.) Abbreviated Journal Science  
  Volume (down) 282 Issue 5389 Pages 746-749  
  Keywords Animals; *Discrimination (Psychology); Macaca mulatta/*psychology; *Mathematics; *Mental Processes  
  Abstract A fundamental question in cognitive science is whether animals can represent numerosity (a property of a stimulus that is defined by the number of discriminable elements it contains) and use numerical representations computationally. Here, it was shown that rhesus monkeys represent the numerosity of visual stimuli and detect their ordinal disparity. Two monkeys were first trained to respond to exemplars of the numerosities 1 to 4 in an ascending numerical order (1 --> 2 --> 3 --> 4). As a control for non-numerical cues, exemplars were varied with respect to size, shape, and color. The monkeys were later tested, without reward, on their ability to order stimulus pairs composed of the novel numerosities 5 to 9. Both monkeys responded in an ascending order to the novel numerosities. These results show that rhesus monkeys represent the numerosities 1 to 9 on an ordinal scale.  
  Address Department of Psychology, Columbia University, New York, NY 10027, USA. liz@psych.columbia.edu  
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  ISSN 0036-8075 ISBN Medium  
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  Notes PMID:9784133 Approved no  
  Call Number refbase @ user @ Serial 606  
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Author Fedak Ma, S.H. openurl 
  Title Reappraisal of energetics of locomotion shows identical cost in bipeds and quadrupeds including ostrich and horse Type Journal Article
  Year 1979 Publication Abbreviated Journal Nature  
  Volume (down) 282 Issue Pages 713-716  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1079  
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Author de Waal, F.B. openurl 
  Title The end of nature versus nurture Type Journal Article
  Year 1999 Publication Scientific American Abbreviated Journal Sci Am  
  Volume (down) 281 Issue 6 Pages 94-99  
  Keywords Animals; *Behavior; Behavior, Animal; Ecology; *Environment; Ethology; Evolution; Female; *Genetics; Humans; Instinct; Learning; Male; Sex Characteristics; Twin Studies  
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  Address Living Links Center, Yerkes Regional Primate Research Center, Atlanta, USA  
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  ISSN 0036-8733 ISBN Medium  
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  Notes PMID:10614071 Approved no  
  Call Number refbase @ user @ Serial 192  
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Author Wittig, R.M.; Crockford, C.; Langergraber, K.E.; Zuberbühler, K. url  doi
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  Title Triadic social interactions operate across time: a field experiment with wild chimpanzees Type Journal Article
  Year 2014 Publication Proceedings of the Royal Society B: Biological Sciences Abbreviated Journal Proc. R. Soc. Lond. B  
  Volume (down) 281 Issue 1779 Pages  
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  Abstract Social animals cooperate with bonding partners to outcompete others. Predicting a competitor's supporter is likely to be beneficial, regardless of whether the supporting relationship is stable or transient, or whether the support happens immediately or later. Although humans make such predictions frequently, it is unclear to what extent animals have the cognitive abilities to recognize others’ transient bond partners and to predict others' coalitions that extend beyond the immediate present. We conducted playback experiments with wild chimpanzees to test this. About 2 h after fighting, subjects heard recordings of aggressive barks of a bystander, who was or was not a bond partner of the former opponent. Subjects looked longer and moved away more often from barks of the former opponents’ bond partners than non-bond partners. In an additional experiment, subjects moved away more from barks than socially benign calls of the same bond partner. These effects were present despite differences in genetic relatedness and considerable time delays between the two events. Chimpanzees, it appears, integrate memories of social interactions from different sources to make inferences about current interactions. This ability is crucial for connecting triadic social interactions across time, a requirement for predicting aggressive support even after a time delay.  
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  Call Number Equine Behaviour @ team @ Serial 5803  
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Author Pedersen, E.J.; Kurzban, R.; McCullough, M.E. url  doi
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  Title Do humans really punish altruistically? A closer look Type Journal Article
  Year 2013 Publication Proceedings of the Royal Society B: Biological Sciences Abbreviated Journal Proc. R. Soc. Lond. B  
  Volume (down) 280 Issue 1758 Pages  
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  Abstract Some researchers have proposed that natural selection has given rise in humans to one or more adaptations for altruistically punishing on behalf of other individuals who have been treated unfairly, even when the punisher has no chance of benefiting via reciprocity or benefits to kin. However, empirical support for the altruistic punishment hypothesis depends on results from experiments that are vulnerable to potentially important experimental artefacts. Here, we searched for evidence of altruistic punishment in an experiment that precluded these artefacts. In so doing, we found that victims of unfairness punished transgressors, whereas witnesses of unfairness did not. Furthermore, witnesses’ emotional reactions to unfairness were characterized by envy of the unfair individual's selfish gains rather than by moralistic anger towards the unfair behaviour. In a second experiment run independently in two separate samples, we found that previous evidence for altruistic punishment plausibly resulted from affective forecasting error—that is, limitations on humans’ abilities to accurately simulate how they would feel in hypothetical situations. Together, these findings suggest that the case for altruistic punishment in humans—a view that has gained increasing attention in the biological and social sciences—has been overstated.  
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  Call Number Equine Behaviour @ team @ Serial 5804  
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Author Proops, L.; McComb, K. url  doi
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  Title Cross-modal individual recognition in domestic horses (Equus caballus) extends to familiar humans Type Journal Article
  Year 2012 Publication Proceedings of the Royal Society B: Biological Sciences Abbreviated Journal  
  Volume (down) 279 Issue 1741 Pages 3131-3138  
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  Abstract It has recently been shown that some non-human animals can cross-modally recognize members of their own taxon. What is unclear is just how plastic this recognition system can be. In this study, we investigate whether an animal, the domestic horse, is capable of spontaneous cross-modal recognition of individuals from a morphologically very different species. We also provide the first insights into how cross-modal identity information is processed by examining whether there are hemispheric biases in this important social skill. In our preferential looking paradigm, subjects were presented with two people and playbacks of their voices to determine whether they were able to match the voice with the person. When presented with familiar handlers subjects could match the specific familiar person with the correct familiar voice. Horses were significantly better at performing the matching task when the congruent person was standing on their right, indicating marked hemispheric specialization (left hemisphere bias) in this ability. These results are the first to demonstrate that cross-modal recognition in animals can extend to individuals from phylogenetically very distant species. They also indicate that processes governed by the left hemisphere are central to the cross-modal matching of visual and auditory information from familiar individuals in a naturalistic setting.  
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  Call Number Equine Behaviour @ team @ Serial 5616  
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