Kinematics and energetics of nut‐cracking in wild capuchin monkeys ( Cebus libidinosus ) in Piauí, Brazil
Bibliographic Data
| ID | 8316646 |
|---|---|
| Authors | Qing Liu (0000-0002-5792-6037, University of Georgia, corresponding author), K Simpson (0000-0002-8916-5500), Kathy J Simpson (0000-0001-6807-3992, University of Georgia), Patrícia Izar (0000-0001-6741-0731, Universidade de São Paulo), Eduardo Β Ottoni (0000-0003-1288-8345, Universidade de São Paulo), Elisabetta Visalberghi (0000-0001-7407-5468, Institute of Cognitive Sciences and Technologies), Dorothy M Fragaszy (0000-0002-4010-4993, University of Georgia), D Fragaszy |
| Year | 2009 |
| Volume | 138 |
| Issue | 2 |
| Pages | 210-220 |
| Publication date | 2009-02-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | American Journal of Physical Anthropology (JOURNAL) |
| Journal identifiers | ISSN: 0002-9483 • E-ISSN: 1096-8644 |
| Publisher | Wiley (PUBLISHER • GB) |
| DOI | 10.1002/ajpa.20920 |
| PMID | 18785652 |
| OpenAlex | W2122597834 |
| Language | EN |
| Citations received | 20 |
| References cited | 24 |
Wild 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 average height of 0.33 m, 60% of body length. Then, they rapidly lowered the stone by flexing the lower extremities and the trunk until the stone contacted the nut. A hit consisting of an upward phase and a downward phase averaged 0.74 s in duration. The upward phase lasted 69% of hit duration. All subjects added discernable energy to the stone in the downward phase. The monkeys exhibited individualized kinematic strategies, similar to those of human weight lifters. Capuchins illustrate that human‐like bipedal stance and large body size are unnecessary to break tough objects from a bipedal position. The phenomenon of bipedal nut‐cracking by capuchins provides a new comparative reference point for discussions of percussive tool use and bipedality in primates. Am J Phys Anthropol 2009. © 2008 Wiley‐Liss, Inc
Biology · Composite material · Cracking · Energetics · Nut · Structural engineering · Zoology · Animal Behavior and Reproduction · Animal Vocal Communication and Behavior · Ecology · Engineering · Materials Science · Primate Behavior and Ecology
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| Unique citing works | 20 |
|---|---|
| Citations per year | 1,18 |
| Citation span | 2009 - 2025 (17) |
| Citation velocity | recent |
| Highly cited | No |
| Citation types | Neutral: 16 |