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Author Previc, F.H. doi  openurl
  Title Thyroid hormone production in chimpanzees and humans: implications for the origins of human intelligence Type Journal Article
  Year 2002 Publication American Journal of Physical Anthropology Abbreviated Journal Am J Phys Anthropol  
  Volume 118 Issue 4 Pages 402-3; discussion 404-5  
  Keywords Animals; Humans; *Intelligence; Pan troglodytes/*metabolism; Species Specificity; Thyroid Hormones/*biosynthesis  
  Abstract  
  Address Northrop Grumman Information Technology, San Antonio, Texas 78228, USA. fred.previc@brooks.af.mil  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN (up) 0002-9483 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:12124921 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4108  
Permanent link to this record
 

 
Author Sterling, E.J.; Povinelli, D.J. openurl 
  Title Tool use, aye-ayes, and sensorimotor intelligence Type Journal Article
  Year 1999 Publication Folia Primatologica; International Journal of Primatology Abbreviated Journal Folia Primatol (Basel)  
  Volume 70 Issue 1 Pages 8-16  
  Keywords Animals; *Behavior, Animal; Feeding Behavior; Female; *Intelligence; Male; Problem Solving; *Psychomotor Performance; Strepsirhini/*physiology/psychology  
  Abstract Humans, chimpanzees, capuchins and aye-ayes all display an unusually high degree of encephalization and diverse omnivorous extractive foraging. It has been suggested that the high degree of encephalization in aye-ayes may be the result of their diverse, omnivorous extractive foraging behaviors. In combination with certain forms of tool use, omnivorous extractive foraging has been hypothesized to be linked to higher levels of sensorimotor intelligence (stages 5 or 6). Although free-ranging aye-ayes have not been observed to use tools directly in the context of their extractive foraging activities, they have recently been reported to use lianas as tools in a manner that independently suggests that they may possess stage 5 or 6 sensorimotor intelligence. Although other primate species which display diverse, omnivorous extractive foraging have been tested for sensorimotor intelligence, aye-ayes have not. We report a test of captive aye-ayes' comprehension of tool use in a situation designed to simulate natural conditions. The results support the view that aye-ayes do not achieve stage 6 comprehension of tool use, but rather may use trial-and-error learning to develop tool-use behaviors. Other theories for aye-aye encephalization are considered.  
  Address Deutsches Primatenzentrum, Gottingen, Germany  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN (up) 0015-5713 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:10050062 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4178  
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Author Seyfarth, R.M.; Cheney, D.L. doi  openurl
  Title What are big brains for? Type Journal Article
  Year 2002 Publication Proceedings of the National Academy of Sciences of the United States of America Abbreviated Journal Proc. Natl. Acad. Sci. U.S.A.  
  Volume 99 Issue 7 Pages 4141-4142  
  Keywords Animals; Brain/*anatomy & histology; *Intelligence; Learning; Primates/*anatomy & histology/*psychology; Social Behavior  
  Abstract  
  Address Department of Psychology, University of Pennsylvania, Philadelphia, PA 19104, USA. seyfarth@psych.upenn.edu  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN (up) 0027-8424 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:11929989 Approved no  
  Call Number refbase @ user @ Serial 692  
Permanent link to this record
 

 
Author Reader, S.M.; Laland, K.N. doi  openurl
  Title Social intelligence, innovation, and enhanced brain size in primates Type Journal Article
  Year 2002 Publication Proceedings of the National Academy of Sciences of the United States of America Abbreviated Journal Proc. Natl. Acad. Sci. U.S.A.  
  Volume 99 Issue 7 Pages 4436-4441  
  Keywords Animals; Brain/*anatomy & histology; Evolution; *Intelligence; Learning; Primates/*anatomy & histology/*psychology; Social Behavior  
  Abstract Despite considerable current interest in the evolution of intelligence, the intuitively appealing notion that brain volume and “intelligence” are linked remains untested. Here, we use ecologically relevant measures of cognitive ability, the reported incidence of behavioral innovation, social learning, and tool use, to show that brain size and cognitive capacity are indeed correlated. A comparative analysis of 533 instances of innovation, 445 observations of social learning, and 607 episodes of tool use established that social learning, innovation, and tool use frequencies are positively correlated with species' relative and absolute “executive” brain volumes, after controlling for phylogeny and research effort. Moreover, innovation and social learning frequencies covary across species, in conflict with the view that there is an evolutionary tradeoff between reliance on individual experience and social cues. These findings provide an empirical link between behavioral innovation, social learning capacities, and brain size in mammals. The ability to learn from others, invent new behaviors, and use tools may have played pivotal roles in primate brain evolution.  
  Address Department of Zoology, University of Cambridge, High Street, Madingley, Cambridge CB3 8AA, United Kingdom  
  Corporate Author Thesis  
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  Language English Summary Language Original Title  
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  ISSN (up) 0027-8424 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:11891325 Approved no  
  Call Number Serial 2149  
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Author Van Schaik, C. openurl 
  Title Why are some animals so smart? Type Journal Article
  Year 2006 Publication Scientific American Abbreviated Journal Sci Am  
  Volume 294 Issue 4 Pages 64-71  
  Keywords Animals; *Behavior, Animal; Cognition; Conditioning (Psychology); Culture; Environment; Equipment and Supplies; Evolution; Indonesia; *Intelligence; Learning; Pongo pygmaeus/*physiology; Social Behavior  
  Abstract  
  Address Anthropological Institute and Museum, University of Zurich, Switzerland  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN (up) 0036-8733 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:16596881 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2830  
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Author Heinrich, B.; Bugnyar, T. openurl 
  Title Just how smart are ravens? Type Journal Article
  Year 2007 Publication Scientific American Abbreviated Journal Sci Am  
  Volume 296 Issue 4 Pages 64-71  
  Keywords Animals; *Behavior, Animal; Crows/*physiology; Environment; *Intelligence; Predatory Behavior; Problem Solving; Thinking  
  Abstract  
  Address University of Vermont, USA  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN (up) 0036-8733 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:17479632 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4101  
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Author Holekamp, K.E.; Sakai, S.T.; Lundrigan, B.L. url  doi
openurl 
  Title Social intelligence in the spotted hyena (Crocuta crocuta) Type Journal Article
  Year 2007 Publication Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences Abbreviated Journal Philos Trans R Soc Lond B Biol Sci  
  Volume 362 Issue 1480 Pages 523-538  
  Keywords Anatomy, Comparative; Animals; Brain/*anatomy & histology; Cercopithecinae/anatomy & histology/*physiology; Decision Making/physiology; Hyaenidae/anatomy & histology/*physiology; *Intelligence; *Recognition (Psychology); *Social Behavior; Species Specificity  
  Abstract If the large brains and great intelligence characteristic of primates were favoured by selection pressures associated with life in complex societies, then cognitive abilities and nervous systems with primate-like attributes should have evolved convergently in non-primate mammals living in large, elaborate societies in which social dexterity enhances individual fitness. The societies of spotted hyenas are remarkably like those of cercopithecine primates with respect to size, structure and patterns of competition and cooperation. These similarities set an ideal stage for comparative analysis of social intelligence and nervous system organization. As in cercopithecine primates, spotted hyenas use multiple sensory modalities to recognize their kin and other conspecifics as individuals, they recognize third-party kin and rank relationships among their clan mates, and they use this knowledge adaptively during social decision making. However, hyenas appear to rely more intensively than primates on social facilitation and simple rules of thumb in social decision making. No evidence to date suggests that hyenas are capable of true imitation. Finally, it appears that the gross anatomy of the brain in spotted hyenas might resemble that in primates with respect to expansion of frontal cortex, presumed to be involved in the mediation of social behaviour.  
  Address Department of Zoology, Michigan State University, East Lansing, MI 48824, USA. holekamp@msu.edu  
  Corporate Author Thesis  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN (up) 0962-8436 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:17289649 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4719  
Permanent link to this record
 

 
Author Pennisi, E. doi  openurl
  Title Animal cognition. Man's best friend(s) reveal the possible roots of social intelligence Type
  Year 2006 Publication Science (New York, N.Y.) Abbreviated Journal Science  
  Volume 312 Issue 5781 Pages 1737  
  Keywords Animals; *Cognition; Comprehension; Cooperative Behavior; Cues; Dogs/*psychology; *Evolution; *Intelligence; *Social Behavior  
  Abstract  
  Address  
  Corporate Author Thesis  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN (up) 1095-9203 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:16794056 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2835  
Permanent link to this record
 

 
Author Pennisi, E. doi  openurl
  Title Animal cognition. Social animals prove their smarts Type
  Year 2006 Publication Science (New York, N.Y.) Abbreviated Journal Science  
  Volume 312 Issue 5781 Pages 1734-1738  
  Keywords Animals; *Behavior, Animal; *Birds; *Cognition; Comprehension; Cues; Food; Hominidae/*psychology; *Intelligence; Learning; Memory; *Social Behavior  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN (up) 1095-9203 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:16794055 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2836  
Permanent link to this record
 

 
Author Huber, L.; Gajdon, G.K. doi  openurl
  Title Technical intelligence in animals: the kea model Type Journal Article
  Year 2006 Publication Animal Cognition Abbreviated Journal Anim. Cogn.  
  Volume 9 Issue 4 Pages 295-305  
  Keywords Animals; *Comprehension; *Intelligence; Models, Psychological; Observation; *Parrots; *Problem Solving; Psychological Theory; Social Environment; *Tool Use Behavior  
  Abstract The ability to act on information flexibly is one of the cornerstones of intelligent behavior. As particularly informative example, tool-oriented behavior has been investigated to determine to which extent nonhuman animals understand means-end relations, object affordances, and have specific motor skills. Even planning with foresight, goal-directed problem solving and immediate causal inference have been a focus of research. However, these cognitive abilities may not be restricted to tool-using animals but may be found also in animals that show high levels of curiosity, object exploration and manipulation, and extractive foraging behavior. The kea, a New Zealand parrot, is a particularly good example. We here review findings from laboratory experiments and field observations of keas revealing surprising cognitive capacities in the physical domain. In an experiment with captive keas, the success rate of individuals that were allowed to observe a trained conspecific was significantly higher than that of naive control subjects due to their acquisition of some functional understanding of the task through observation. In a further experiment using the string-pulling task, a well-probed test for means-end comprehension, we found the keas finding an immediate solution that could not be improved upon in nine further trials. We interpreted their performance as insightful in the sense of being sensitive of the relevant functional properties of the task and thereby producing a new adaptive response without trial-and-error learning. Together, these findings contribute to the ongoing debate on the distribution of higher cognitive skills in the animal kingdom by showing high levels of sensorimotor intelligence in animals that do not use tools. In conclusion, we suggest that the 'Technical intelligence hypothesis' (Byrne, Machiavellian intelligence II: extensions and evaluations, pp 289-211, 1997), which has been proposed to explain the origin of the ape/monkey grade-shift in intelligence by a selection pressure upon an increased efficiency in foraging behavior, should be extended, that is, applied to some birds as well.  
  Address Department for Behavior, Neurobiology and Cognition, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria. ludwig.huber@univie.ac.at  
  Corporate Author Thesis  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN (up) 1435-9448 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:16909237 Approved no  
  Call Number Serial 2085  
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