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Author (up) Sommer, V.; Lowe, A.; Dietrich, T. url  doi
openurl 
  Title Not eating like a pig: European wild boar wash their food Type Journal Article
  Year 2016 Publication Animal Cognition Abbreviated Journal Anim. Cogn.  
  Volume 19 Issue 1 Pages 245-249  
  Keywords  
  Abstract Carrying food to water and either dunking or manipulating it before consumption has been observed in various taxa including birds, racoons and primates. Some animals seem to be simply moistening their food. However, true washing aims to remove unpleasant surface substrates such as grit and sand and requires a distinction between items that do and do not need cleaning as well as deliberate transportation of food to a water source. We provide the first evidence for food washing in suids, based on an incidental observation with follow-up experiments on European wild boar (Sus scrofa) kept at Basel Zoo, Switzerland. Here, all adult pigs and some juveniles of a newly formed group carried apple halves soiled with sand to the edge of a creek running through their enclosure where they put the fruits in the water and pushed them to and fro with their snouts before eating. Clean apple halves were never washed. This indicates that pigs can discriminate between soiled and unsoiled foods and that they are able to delay gratification for long enough to transport and wash the items. However, we were unable to ascertain to which degree individual and/or social learning brought this behaviour about.  
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  ISSN 1435-9456 ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Sommer2016 Serial 6132  
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Author (up) Taubert, J.; Weldon, K.B.; Parr, L.A. url  doi
openurl 
  Title Robust representations of individual faces in chimpanzees (Pan troglodytes) but not monkeys (Macaca mulatta) Type Journal Article
  Year 2016 Publication Animal Cognition Abbreviated Journal Anim. Cogn.  
  Volume Issue Pages 1-9  
  Keywords  
  Abstract Being able to recognize the faces of our friends and family members no matter where we see them represents a substantial challenge for the visual system because the retinal image of a face can be degraded by both changes in the person (age, expression, pose, hairstyle, etc.) and changes in the viewing conditions (direction and degree of illumination). Yet most of us are able to recognize familiar people effortlessly. A popular theory for how face recognition is achieved has argued that the brain stabilizes facial appearance by building average representations that enhance diagnostic features that reliably vary between people while diluting features that vary between instances of the same person. This explains why people find it easier to recognize average images of people, created by averaging multiple images of the same person together, than single instances (i.e. photographs). Although this theory is gathering momentum in the psychological and computer sciences, there is no evidence of whether this mechanism represents a unique specialization for individual recognition in humans. Here we tested two species, chimpanzees (Pan troglodytes) and rhesus monkeys (Macaca mulatta), to determine whether average images of different familiar individuals were easier to discriminate than photographs of familiar individuals. Using a two-alternative forced-choice, match-to-sample procedure, we report a behaviour response profile that suggests chimpanzees encode the faces of conspecifics differently than rhesus monkeys and in a manner similar to humans.  
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  ISSN 1435-9456 ISBN Medium  
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  Call Number Equine Behaviour @ team @ Taubert2016 Serial 6030  
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Author (up) Ward, A; Webster, M. openurl 
  Title Sociality: The Behaviour of Group-Living Animals Type Book Whole
  Year 2016 Publication Abbreviated Journal  
  Volume Issue Pages  
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  Abstract Covers the aspects of social behaviour of animals in comprehensive form Provides a clear overview to up-to-date empirical and theoretical research on social animal behaviour

Discusses collective animal behaviour, social networks and animal personality in detail

The last decade has seen a surge of interest among biologists in a range of social animal phenomena, including collective behaviour and social networks. In ĎAnimal Social Behaviourí, authors Ashley Ward and Michael Webster integrate the most up-to-date empirical and theoretical research to provide a new synthesis of the field, which is aimed at fellow researchers and postgraduate students on the topic. ​
 
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 6156  
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