Morphometric Characterization of the Asymmetry in the Mandible of the Ferret (Mustela putorius furo Linnaeus, 1758)

Pere M. Parés-Casanova

doi:10.20944/preprints202206.0048.v1

Preprint Short Note Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 1 June 2022 / Approved: 3 June 2022 / Online: 3 June 2022 (11:18:03 CEST)

In order to analyse asymmetries between hemimandibles, a sample of 24 mandibles from ferrets was studied by means of geometric morphometric methods, using a set of 3 landmarks and 14 semilandmarks, on the lateral aspect. Results showed that both size and shape played a significative role in mandibular asymmetry. For shape, there appeared significative fluctuating and directional asymmetries, with an especially high level for this latter. Landmarks corresponding to muscular attachments showed greater landmark asymmetry. This it is supported the hypothesis of a chewing side preference, e.g., a mastication-related driver for mandibular shape asymmetry.

craniofacial; laboratory animal; mental foramen; mental nerve; polecat

Biology and Life Sciences, Anatomy and Physiology

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Morphometric Characterization of the Asymmetry in the Mandible of the Ferret (Mustela putorius furo Linnaeus, 1758)

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