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MacCain, G.; Stepter, G., 1968. Discrimination learning and extinction in the black rhinoceros (Diceros bicornis). Psychonomic Science 13 (3): 189-190, figs. 1-3

  details
 
Location: Captive - North America
Subject: Captivity - Zoo Records
Species: Black Rhino


Original text on this topic:
The Ss in Experiments 1-3 were a male and a female black rhinoceros in the Dallas Zoo. The female is estimated to be nine years old and the male three years old.

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