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Author Title Year (up) Publication Serial Volume Pages
Dunbar, R. Evolution of the social brain 2003 Science 548 302 1160-1161
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
Matsuzawa, T. The Ai project: historical and ecological contexts 2003 Animal Cognition 2552 6 199-211
Sousa, C.; Okamoto, S.; Matsuzawa, T. Behavioural development in a matching-to-sample task and token use by an infant chimpanzee reared by his mother 2003 Animal Cognition 2556 6 259-267
Stoet, G.; Snyder, L.H. Task preparation in macaque monkeys ( Macaca mulatta) 2003 Animal Cognition 2572 6 121-130
Uller, C.; Jaeger, R.; Guidry, G.; Martin, C. Salamanders ( Plethodon cinereus) go for more: rudiments of number in an amphibian 2003 Animal Cognition 2575 6 105-112
Vonk, J. Gorilla ( Gorilla gorilla gorilla) and orangutan ( Pongo abelii) understanding of first- and second-order relations 2003 Animal Cognition 2578 6 77-86
van der Willigen, R.F.; Frost, B.J.; Wagner, H. How owls structure visual information 2003 Animal Cognition 2582 6 39-55
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
Tomasello, M.; Call, J. The role of humans in the cognitive development of apes revisited 2004 Animal Cognition 2517 7 213-215