Visual Problem-Solving in a Bottlenose Dolphin

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Science  06 Mar 1964:
Vol. 143, Issue 3610, pp. 1052-1055
DOI: 10.1126/science.143.3610.1052


A captive 8-year-old dolphin, well adapted to contact with human beings, was tested by the discrimination method for underwater perception of visual forms or patterns. The animal successfully discriminated 21 of the 25 pairs of stimuli presented. After having learned a particular combination, the dolphin was immediately able to respond to different but related pairs which had been modified in various ways. The memory of the animal for discriminations previously made was excellent.