How wild bearded capuchin monkeys select stones and nuts to minimize the number of strikes per nut cracked
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چکیده
* Correspondence: D. M. Fragaszy, Department o Georgia, Athens, GA 30602, U.S.A. E-mail address: [email protected] (D.M. Fragaszy). 1 R. Greenberg is now at 2781 Whispering Pines D 2 E. Visalberghi is at the Institute of Science and T via Aldrovandi 16 B, Rome 00197, Italy. 3 E. B. Ottoni and P. Izar are at the Institute o University of São Paulo, Av. Prof. Mello Moraes 1721, B Paulo, SP, CEP 05508-030, Brazil.
منابع مشابه
Task-specific temporal organization of percussive movements in wild bearded capuchin monkeys
http://dx.doi.org/10.1016/j.anbehav.2016.01.011 0003-3472/© 2016 The Association for the Study of A Tool-assisted percussion is an ancient feature of human technology. Tool-assisted percussion is not uniquely human; chimpanzees, Pan troglodytes, longtailed macaques, Macaca fascicularis aurea, and capuchin monkeys (Sapajus spp.) use stone tools to crack open encased foods. The knowledge of how t...
متن کاملWild capuchin monkeys spontaneously adjust actions when using hammer stones of different mass to crack nuts of different resistance.
OBJECTIVES Expert tool users are known to adjust their actions skillfully depending on aspects of tool type and task. We examined if bearded capuchin monkeys cracking nuts with stones of different mass adjusted the downward velocity and the height of the stone when striking palm nuts. MATERIALS AND METHODS During a field experiment carried out in FBV (Piauí, Brazil), eight adult wild capuchin...
متن کاملWild Bearded Capuchin Monkeys Crack Nuts Dexterously
Dexterous tool use has been crucial in the evolution of hominid percussive technology. According to Newell, "dexterity" is the ability of an organism to make goal-directed corrections in movements to optimize effort. Dexterous movements are smooth and effective and accomplish the same goal with less energy than less dexterous movements. Dexterity develops during the later phases of refining a m...
متن کاملCharacteristics of hammer stones and anvils used by wild bearded capuchin monkeys (Cebus libidinosus) to crack open palm nuts.
Capuchins living in Boa Vista (Piauì, Brazil) crack open hard palm nuts on hard, level surfaces (anvils) using stones (hammers) as percussive tools. This activity leaves diagnostic physical remains: distinctive shallow depressions (pits) on the surface of the anvil, cracked shells, and stone hammers on the anvil. To initiate comparison of percussive stone tool use and interpretation of the arti...
متن کاملWild capuchin monkeys adjust stone tools according to changing nut properties
Animals foraging in their natural environments need to be proficient at recognizing and responding to changes in food targets that affect accessibility or pose a risk. Wild bearded capuchin monkeys (Sapajus libidinosus) use stone tools to access a variety of nut species, including otherwise inaccessible foods. This study tests whether wild capuchins from Serra da Capivara National Park in Brazi...
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تاریخ انتشار 2010