| Author |
Title |
Year |
Publication |
Serial  |
Volume |
Pages |
| Holekamp, K.E.; Sakai, S.T.; Lundrigan, B.L. |
Social intelligence in the spotted hyena (Crocuta crocuta) |
2007 |
Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences |
4719 |
362 |
523-538 |
| Sterling, E.J.; Povinelli, D.J. |
Tool use, aye-ayes, and sensorimotor intelligence |
1999 |
Folia Primatologica; International Journal of Primatology |
4178 |
70 |
8-16 |
| Previc, F.H. |
Thyroid hormone production in chimpanzees and humans: implications for the origins of human intelligence |
2002 |
American Journal of Physical Anthropology |
4108 |
118 |
402-3; discussion 404-5 |
| Heinrich, B.; Bugnyar, T. |
Just how smart are ravens? |
2007 |
Scientific American |
4101 |
296 |
64-71 |
| Pennisi, E. |
Animal cognition. Social animals prove their smarts |
2006 |
Science (New York, N.Y.) |
2836 |
312 |
1734-1738 |
| Pennisi, E. |
Animal cognition. Man's best friend(s) reveal the possible roots of social intelligence |
2006 |
Science (New York, N.Y.) |
2835 |
312 |
1737 |
| Van Schaik, C. |
Why are some animals so smart? |
2006 |
Scientific American |
2830 |
294 |
64-71 |
| Pepperberg, I.M. |
The value of the Piagetian framework for comparative cognitive studies |
2002 |
Animal Cognition |
2595 |
5 |
177-182 |
| Borsari, A.; Ottoni, E.B. |
Preliminary observations of tool use in captive hyacinth macaws (Anodorhynchus hyacinthinus) |
2005 |
Animal Cognition |
2518 |
8 |
48-52 |
| Ducoing, A.M.; Thierry, B. |
Tool-use learning in Tonkean macaques (Macaca tonkeana) |
2005 |
Animal Cognition |
2508 |
8 |
103-113 |
