Does the shape of forelimb long bones co-vary with grasping behaviour in strepsirrhine primates?


Journal Article

© 2018 The Linnean Society of London, Biological Journal of the Linnean Society. Fine prehensile activities are often thought to have been associated with the evolution of the human hand. However, there has been no holistic approach establishing the link between the morphology of the forelimb and grasping ability in living primates. The present study investigated the possible relationships between grasping behaviour and the morphology of the forelimb in strepsirrhines in a phylogenetic context. To do so, grasping behaviour during feeding and the shape of the long bones of the forelimb were analysed for 22 species of strepsirrhines. The data obtained show that there is a phylogenetic signal in forelimb morphology in primates in relation to grasping behaviour, but also that there is a marked co-evolution between grasping behaviour and the shape of the humerus and radius. This latter finding suggests a functional association between grasping and forelimb shape, which in turn suggests that bone shape constrains or facilitates behaviour. This result may permit future inferences to be made regarding this behaviour in extinct species and deserves further examination in more detail.

Full Text

Duke Authors

Cited Authors

  • Fabre, AC; Peckre, L; Pouydebat, E; Wall, CE

Published Date

  • January 1, 2019

Published In

Volume / Issue

  • 127 / 3

Start / End Page

  • 649 - 660

Electronic International Standard Serial Number (EISSN)

  • 1095-8312

International Standard Serial Number (ISSN)

  • 0024-4066

Digital Object Identifier (DOI)

  • 10.1093/biolinnean/bly188

Citation Source

  • Scopus