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  Author Title (down) Year Publication Serial Volume Pages Links
Bergman, T.J.; Beehner, J.C.; Cheney, D.L.; Seyfarth, R.M. Hierarchical classification by rank and kinship in baboons 2003 Science (New York, N.Y.) 689 302 1234-1236 details   doi
Vonk, J. Gorilla ( Gorilla gorilla gorilla) and orangutan ( Pongo abelii) understanding of first- and second-order relations 2003 Animal Cognition 2578 6 77-86 details   doi
Friedrich, A.M.; Clement, T.S.; Zentall, T.R. Functional equivalence in pigeons involving a four-member class 2004 Behavioural processes 228 67 395-403 details   doi
Williams, N. Evolutionary psychologists look for roots of cognition 1997 Science (New York, N.Y.) 2845 275 29-30 details   openurl
Dunbar, R. Evolution of the social brain 2003 Science 548 302 1160-1161 details   doi
Mitchell, D.; Kirschbaum, E.H.; Perry, R.L. Effects of neophobia and habituation on the poison-induced avoidance of exteroceptive stimuli in the rat 1975 Journal of Experimental Psychology. Animal Behavior Processes 2791 1 47-55 details   openurl
Osthaus, B.; Lea, S.E.G.; Slater, A.M. Dogs (Canis lupus familiaris) fail to show understanding of means-end connections in a string-pulling task 2005 Animal Cognition 2513 8 37-47 details   doi
Gallup, G.G.J. Do minds exist in species other than our own? 1985 Neuroscience and Biobehavioral Reviews 2808 9 631-641 details   openurl
Murai, C.; Tomonaga, M.; Kamegai, K.; Terazawa, N.; Yamaguchi, M.K. Do infant Japanese macaques ( Macaca fuscata) categorize objects without specific training? 2004 Primates 2813 45 1-6 details   doi
West, R.E.; Young, R.J. Do domestic dogs show any evidence of being able to count? 2002 Animal Cognition 2594 5 183-186 details   doi
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