Cooperative Tool Use by Captive Hamadryas Baboons

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Science  09 Nov 1973:
Vol. 182, Issue 4112, pp. 594-597
DOI: 10.1126/science.182.4112.594


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.