Preference for Clear versus Distorted Viewing in the Chimpanzee

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Science  10 Nov 1961:
Vol. 134, Issue 3489, pp. 1531
DOI: 10.1126/science.134.3489.1531


Young chimpanzees preferred to look through a clear window rather than through a window that produced a distorted image of viewed objects. Performance did not appear to be affected by familiarity with the viewing stimulus.