Lack of hand preference in wild hanuman langurs (Presbytis entellus)

E. S. Mittra*, A. Fuentes, W. C. McGrew

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Although there is a vast literature on laterality of hand-use in nonhuman primates, the Colobinae have been notably overlooked. Ten manual activities of differing complexity were studied in five male and five female adult Hanuman langurs (Presbytis entellus) from a well habituated, wild population at Ramnagar, in southern Nepal. The activities recorded were carry, eat, hit, hold, idle, manipulate, reach, retrieve, self-groom and social groom; This study aimed to examine handedness across tasks and across subjects in a natural population. The overall result was a lack of preference for subjects and patterns. Only in the eating activity did four individuals show significant hand preference, though they were not unidirectional. Eat seemed to be loosely associated with hold due to the requirements of the strata which the monkeys utilize. These results suggest that hand use is unlateralized in P. entellus. Those individuals exhibiting some hand preferences can be viewed as statistical exceptions or perhaps subject to experiential differences. The results are discussed in terms of their evolutionary significance and methodological implications.

Original languageEnglish
Pages (from-to)455-461
Number of pages7
JournalAmerican Journal of Physical Anthropology
Volume103
Issue number4
DOIs
Publication statusPublished - 6 Dec 1998

Keywords

  • Colobines
  • Field study
  • Handedness
  • Lateraltry

Fingerprint

Dive into the research topics of 'Lack of hand preference in wild hanuman langurs (Presbytis entellus)'. Together they form a unique fingerprint.

Cite this