The Pygmy Chimpanzee Evolutionary Biology and Behavior / edited by Randall L. Susman.
Historical Remarks Bearing on the Discovery of Pan paniscus Whether by accident or by design, it was most fortunate that Robert M. Yerkes, the dean of American primatologists, should have been the first scientist to describe the characteristics of a pygmy chimpanzee, which he acquired in August 1923...
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