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Science 9 November 1973:
Vol. 182. no. 4112, pp. 594 - 597
DOI: 10.1126/science.182.4112.594
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Articles

Cooperative Tool Use by Captive Hamadryas Baboons

Benjamin B. Beck 1

1 Chicago Zoological Park, Brookfield, Illinois 60513

A bonded pair of hamadryas baboons developed cooperative tool use without training. The male could get food with the tool but first had to get the tool from an adjoining cage which he could not enter. The female learned to give him the tool. Cooperation was temporarily disrupted by the terminal phase of the female's estrous inflation.


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