Wild capuchin monkeys (Cebus libidinosus) use anvils and stone pounding tools

  title={Wild capuchin monkeys (Cebus libidinosus) use anvils and stone pounding tools},
  author={Dorothy Munkenbeck Fragaszy and Patr{\'i}cia Izar and Elisabetta Visalberghi and Eduardo B. Ottoni and Marino Gomes de Oliveira},
  journal={American Journal of Primatology},
We 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 outcrops, boulders, and logs (collectively termed anvils). Anvils, which were identified by numerous shallow depressions on the upper surface, the presence… 
Characteristics of hammer stones and anvils used by wild bearded capuchin monkeys (Cebus libidinosus) to crack open palm nuts.
Wild capuchins provide a new reference point for interpreting early percussive stone tool use in hominins, and a point of comparison with chimpanzees cracking nuts.
The manifold use of pounding stone tools by wild capuchin monkeys of Serra da Capivara National Park, Brazil
The use of pounding stone tools (PSTs) is a customary behaviour in several wild populations of capuchin monkeys; most of these monkeys use PSTs primarily to open hard palm nuts. Here, we describe the
Spontaneous Tool Use by Wild Capuchin Monkeys (Cebus libidinosus) in the Cerrado
It is proposed that the probability of the emergence of the use of pounding stones as tools may be dependent on the ecological variables that influence the degree of terrestriality and extractive foraging and the complex interaction of these factors.
Stone tool use by adult wild bearded capuchin monkeys (Cebus libidinosus). Frequency, efficiency and tool selectivity.
It is argued that the contrasting pattern of sex differences in capuchins compared with chimpanzees, in which females use tools more frequently and more skillfully than males, may have arisen from the degree of sexual dimorphism in body size of the two species, which is larger in capuchin monkeys than in chimpanzees.
Wild bearded capuchin monkeys (Cebus libidinosus) place nuts in anvils selectively
Are 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’
Stone tool use by wild capuchin monkeys (Sapajus libidinosus) at Serra das Confusões National Park, Brazil
Capuchin monkeys (Sapajus spp.) are proficient tool users, and the use of stone tools occurs in several populations, mostly to crack open encased foods. Two well-studied Brazilian populations of
How wild bearded capuchin monkeys select stones and nuts to minimize the number of strikes per nut cracked
Wild bearded capuchin monkeys, Cebus libidinosus, use stone tools to crack palm nuts to obtain the kernel. In five experiments, we gave 10 monkeys from one wild group of bearded capuchins a choice of
Cashew Nut Positioning during Stone Tool Use by Wild Bearded Capuchin Monkeys (Sapajus libidinosus)
Wild capuchin monkeys at Serra da Capivara National Park, Brazil, regularly use stone tools to break open cashew nuts, and this relatively rare behaviour appears to have a complex ontogeny, but further studies are required to establish the extent to which social learning is involved.
How bearded capuchin monkeys (Sapajus libidinosus) prepare to use a stone to crack nuts
Two new aspects of the capuchins’ nut‐cracking are highlighted: Anticipatory actions with the stone before striking, especially when the stone is larger or unfamiliar, and when initiating striking and (b) shifting grips on the stone during a strike.
Adult and juvenile bearded capuchin monkeys handle stone hammers differently during nut‐cracking
It is shown that young monkeys control the trajectory of a stone adequately but that is not sufficient to crack nuts as effectively as adults do, and perceptual learning about these aspects of percussion occurs slowly.


Semifree-ranging Tufted Capuchins (Cebus apella) Spontaneously Use Tools to Crack Open Nuts
A role for observational learning is suggested, even if restricted to stimulus enhancement, in a group of semifree-ranging capuchins living in a reforested area (Tietê Ecological Park, São Paulo, Brazil).
Substrate and Tool Use by Brown Capuchins in Suriname: Ecological Contexts and Cognitive Bases
Brown capuchins (Cebus apella) at Raleighvallen Nature Preserve in Suriname have recently been discovered to exhibit object manipulation abilities in foraging, specifically frequent substrate use and
Development of stone tool use by wild chimpanzees (Pan troglodytes).
Although infant chimpanzees at the age of 2.5 years already acquired basic actions necessary for nut cracking, they did not combine the actions in an appropriate sequence to perform actual nut cracking.
The Complete Capuchin
  • S. Perry
  • Biology
    International Journal of Primatology
  • 2005
Capuchins have independently evolved many of the traits that evolutionary anthropologists wish to explain about human origins: enormous brains, sophisticated tool use, social conventions, hunting of vertebrates, food sharing, frequent alloparenting, elaborate nonconceptive sex, medicinal plant use, and frequent (sometimes lethal) coalitionary aggression against conspecifics.
Acquisition of Nut-Cracking Behaviour by 2 Capuchin Monkeys (Cebus apella)
The acquisition of nut-cracking behaviour was investigated in two naive groups of captive capuchin monkeys (Cebus apella). Two adult males acquired this behaviour independently and without any ad hoc
Tool use and predation of oysters (Crassostrea rhizophorae) by the tufted capuchin,Cebus apella appella, in brackish water mangrove swamp
It is suggested that this behavioural adaptability on mangrove resources is a key factor in the success of the species in this ecosystem.
The Complete Capuchin: The Biology of the Genus Cebus
Preface Acknowledgements Prologue Colour plates Part I. Capuchins in Nature: 1. Taxonomy and distribution with Anthony Rylands 2. Behavioural ecology 3. Community ecology 4. Life history and
Emergence of a culture in wild chimpan-zees: education by master-apprenticeship
This chapter describes a series of field experiments aimed at investigating aspects of emergence of cultural traditions in wild chimpanzee communities. Long-term research at a number of sites in
Dexterity and Its Development
Contents: Preface. N.A. Bernstein, Part I: On Dexterity and Its Development. Introduction. What Is Dexterity? On Motor Control. On the Origin of Movements. On the Construction of Movements. Levels of
Emergence of culture in wild chimpanzees: education by master-apprenticeship Primate origins of human cognition and behavior
  • Emergence of culture in wild chimpanzees: education by master-apprenticeship Primate origins of human cognition and behavior
  • 2001