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Ant-gathering with tools by captive tufted capuchins (Cebus apella)
Ist Teil von
International journal of primatology, 1997-02, Vol.18 (1), p.95-103
Ort / Verlag
New York, NY: Kluwer Academic/Plenum
Erscheinungsjahr
1997
Link zum Volltext
Quelle
SpringerLink (Online service)
Beschreibungen/Notizen
We examined ant-gathering with tools by captive tufted capuchins (Cebus apella) via two experiments. In Experiment 1, we provided groups of subjects with sticks and small branches and an apparatus that accommodated the use of tools to gather ants. In Experiment 2, we sealed the apparatus with acetate and provided the same subjects with sticks and stones. Seven of 14 subjects used sticks and leaves as probes to extract ants from the apparatus. Six of them modified probes by detaching sticks from larger branches, breaking sticks into two or more pieces, and subtracting leaves and bark. Three subjects later used a stone and stick tool-set to penetrate acetate barriers and to extract ants. These results demonstrate the use of tools by Cebus to capture moving prey and are consistent with the idea that sensorimotor skills associated with the production and use of tools in primates evolved convergently in capuchins and great apes.