Morell, V. (2007). Nicola Clayton profile. Nicky and the jays (Vol. 315).
|
Pennisi, E. (2006). Animal cognition. Man's best friend(s) reveal the possible roots of social intelligence (Vol. 312).
|
Pennisi, E. (2006). Animal cognition. Social animals prove their smarts (Vol. 312).
|
Pennisi, E. (1999). Are out primate cousins 'conscious'? (Vol. 284).
|
Heinrich, B., & Bugnyar, T. (2007). Just how smart are ravens? Sci Am, 296(4), 64–71.
|
Straub, A. (2007). An intelligent crow beats a lab. Science, 316(5825), 688.
|
Previc, F. H. (2002). Thyroid hormone production in chimpanzees and humans: implications for the origins of human intelligence. Am J Phys Anthropol, 118(4), 402–3; discussion 404–5.
|
Cowley, J. J., & Griesel, R. D. (1966). The effect on growth and behaviour of rehabilitating first and second generation low protein rats. Anim. Behav., 14(4), 506–517.
|
Levy, J. (1977). The mammalian brain and the adaptive advantage of cerebral asymmetry. Ann N Y Acad Sci, 299, 264–272.
|
Cattell, R. B., & Korth, B. (1973). The isolation of temperament dimensions in dogs. Behav Biol, 9(1), 15–30.
|