Vertical bipedal locomotion in wild bearded capuchin monkeys (Sapajus libidinosus)

Tiago Falótico*, Agumi Inaba, William C. McGrew, Eduardo B. Ottoni

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

When carrying objects, nonhuman primates often show bipedal locomotion. Studies of primate bipedality, however, in both nature and captivity, have concentrated on locomotion on horizontal substrates, either terrestrially or arboreally. No observational or experimental study seems to have looked at non-horizontal bipedality, yet we show here that it occurs often in nature in Sapajus libidinosus, the bearded capuchin monkey. The context is transport of small food items from source to site of consumption, in which the monkeys usually carry handfuls of maize kernels over several meters’ distance, both on the ground and in the trees. Most impressively, over a fifth of such bouts are done vertically, when the tree trunk is fully upright. Such vertical bipedality, with or without transport, apparently has not been reported before.

Original languageEnglish
Pages (from-to)533-540
Number of pages8
JournalPrimates
Volume57
Issue number4
DOIs
Publication statusPublished - 6 May 2016

Keywords

  • Bipedality
  • Cebus libidinosus
  • Locomotion
  • Sapajus libidinosus
  • Transport

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