Results 91 to 100 of about 313 (131)
Anatomy of the Nervous of Forearm and Hand of Cebus libidinosus (Rylands, 2000)
International Journal of Morphology, 2009 El conocimiento sobre la estructura macroscopica del interior del Cebus proporcionara datos para los estudios histologicos y bioquimicos y tambien contribuira a estudios etologicos. El comportamiento, la memoria, el uso de herramientas y el indice del encefalizacion del genero Cebus se plantean en torno a los chimpances, en relacion con estos aspectos.
Tales Alexandre Aversi-Ferreira +1 more
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Spontaneous Tool Use by Wild Capuchin Monkeys (Cebus libidinosus) in the Cerrado
Folia Primatologica, 2006Among primates, only chimpanzees and orang-utans are credited with customary tool use in nature. Among monkeys, capuchins stand out with respect to the number of accounts of tool use. However, the majority of capuchin tool use observations reported in nature is anecdotal or idiosyncratic.
I C, Waga +3 more
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Wild bearded capuchin monkeys (Cebus libidinosus) place nuts in anvils selectively
Animal Behaviour, 2011Are wild bearded capuchin monkeys selective about where they place nuts on anvils, specifically the anvil pits, during nut cracking? In the present study, we examined (1) whether capuchins' preferences for particular pits are influenced by the effectiveness of the pit in cracking the nut and/or by the stability of the nut during striking, (2) how ...
Liu Q +5 more
openaire +1 more source
American Journal of Primatology, 2008
Physical properties of palm fruits processed with tools by wild bearded capuchins (Cebus libidinosus).
Patricia Izar +2 more
exaly +6 more sources
Physical properties of palm fruits processed with tools by wild bearded capuchins (Cebus libidinosus).
Patricia Izar +2 more
exaly +6 more sources
Wild capuchin monkeys (Cebus libidinosus) use anvils and stone pounding tools
American Journal of Primatology, 2004AbstractWe conducted an exploratory investigation in an area where nut‐cracking by wild capuchin monkeys is common knowledge among local residents. In addition to observing male and female capuchin monkeys using stones to pound open nuts on stone “anvils,” we surveyed the surrounding area and found physical evidence that monkeys cracked nuts on rock ...
Dorothy, Fragaszy +4 more
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American Journal of Primatology, 2008
AbstractHabitually, capuchin monkeys access encased hard foods by using their canines and premolars and/or by pounding the food on hard surfaces. Instead, the wild bearded capuchins (Cebus libidinosus) of Boa Vista (Brazil) routinely crack palm fruits with tools.
Visalberghi E +6 more
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AbstractHabitually, capuchin monkeys access encased hard foods by using their canines and premolars and/or by pounding the food on hard surfaces. Instead, the wild bearded capuchins (Cebus libidinosus) of Boa Vista (Brazil) routinely crack palm fruits with tools.
Visalberghi E +6 more
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Behavioral flexibility of a group of bearded capuchin monkeys (Cebus libidinosus) in the National Park of Brasília (Brazil): consequences of cohabitation with visitors [PDF]
Brazilian Journal of Biology, 2008 Increasing urbanization and deforestation have enhanced the opportunities of contact between humans and monkeys and the impact of human activities on primate behavior is receiving growing attention. This study explores whether activity budgets and diet of a group of capuchin monkeys (Cebus libidinosus) inhabiting the area of the swimming pools of the ...
Elisabetta Visalberghi +1 more
exaly +8 more sources
American Journal of Physical Anthropology, 2009
AbstractWild bearded capuchins (Cebus libidinosus, quadrupedal, medium‐sized monkeys) crack nuts using large stones. We examined the kinematics and energetics of the nut‐cracking action of two adult males and two adult females. From a bipedal stance, the monkeys raised a heavy hammer stone (1.46 and 1.32 kg, from 33 to 77% of their body weight) to an ...
Q, Liu +5 more
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AbstractWild bearded capuchins (Cebus libidinosus, quadrupedal, medium‐sized monkeys) crack nuts using large stones. We examined the kinematics and energetics of the nut‐cracking action of two adult males and two adult females. From a bipedal stance, the monkeys raised a heavy hammer stone (1.46 and 1.32 kg, from 33 to 77% of their body weight) to an ...
Q, Liu +5 more
openaire +2 more sources
Using the Hard, Randy, and Rittler Test to Evaluate Color Vision in Capuchins (Cebus libidinosus)
International Journal of Primatology, 2012The identification of color vision types in primates is fundamental to understanding the evolution and biological function of color perception. The Hard, Randy, and Rittler (HRR) pseudoisochromatic test categorizes human color vision types successfully.
Tiago Siebert Altavini +5 more
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Animal Behaviour, 2012
To determine whether tool use varied in relation to food availability in bearded capuchin monkeys, we recorded anvil and stone hammer use in two sympatric wild groups, one of which was provisioned daily, and assessed climatic variables and availability of fruits, invertebrates and palm nuts.
Spagnoletti N +5 more
openaire +4 more sources
To determine whether tool use varied in relation to food availability in bearded capuchin monkeys, we recorded anvil and stone hammer use in two sympatric wild groups, one of which was provisioned daily, and assessed climatic variables and availability of fruits, invertebrates and palm nuts.
Spagnoletti N +5 more
openaire +4 more sources