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Can captive orangutans (Pongo pygmaeus abelii) be coaxed into cumulative build-up of techniques?
Lehner, Stephan R., Burkart, Judith M., van Schaik, Carel P.Volume:
125
Year:
2011
Language:
english
Journal:
Journal of Comparative Psychology
DOI:
10.1037/a0024413
File:
PDF, 130 KB
english, 2011