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Georgia Journal of Science

Abstract

Sexual dimorphism in canine size was analyzed from a sample of the Baldwin County, Georgia population of Didelphis virginiana (Virginia opossum). Where possible 6 measurements were obtained from 59 (47 males, 12 females) individuals collected as roadkill. Although range overlap exists for all measurements, males were found to be significantly larger for upper and lower canine length, width and height. The observed sexual dimorphism agrees with previously published analyses of cranial and post-cranial sexual dimorphism in this species and is likely related to intrasexual aggression between males during mating season.

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