Abstract
Abstract
Background: The Importance of the appendicular skeleton in the conformation, shape and physiology of wild animals especially carnivores for adaptation and survival cannot be overemphasized as limited and obsolete information on the bones of the forelimb necessitated this study. Matured adult African lions (Male and female) that weighed 173kg and 112kg were obtained at different times after post mortem examinations of their carcasses. Bone preparation was achieved via cold water maceration after proper skin and muscle removal to a barest minimum.
Results: The acromion process of the scapula consisted of a ventral hamate and caudal suprahamatus processes. The musculospiral groove of the humerus was more or less absent while its supracondyloid foramen and crest were positioned above the medial condyle and lateral condyle respectively. The radio-ulna presented a twisted appearance with the radius slightly curved thereby creating an extensive interosseous space that spanned its entire length. The seven (7) carpal bones were uniquely arranged in two rows while the 5 metacarpals anchored 5 digits with 3 phalanges except the first with 2 phalanges each. The 3rd phalanx had a unique appearance with a crescent plate projecting from the ventral cavity.The average total number of bones constituting the pectoral limb was 75.
Conclusion: Numerical information and detailed anatomical features of the pectoral limb bones of the African lion (Panthera leo) have added some valuable literature to science. This further serves as a baseline data for future scientific exposition on this species.
Publisher
Research Square Platform LLC
Reference22 articles.
1. Adams, B and Crabtree, P. Comparative Osteology: A laboratory and Field Guide of common North American Animals, 1st edition, Academic press. Oxford, U.K. 2012; pp. 333–343. ISBN 978-0-12-388437-4.https://doi.org/10.1016/C2010-0-68475-6
2. Adams, D. R. Canine anatomy: A systemic study, 4th edition. Wiley-Blackwell. U.S.A. 2003; pp 113–124. ISBN 10:081381281X, ISBN 13:9780813812816.
3. Bauer, H., Chapron, G., Nowel, K., Henschel, P., Funston, P., Hunter, L.T.B., Macdonal, D.W. and Packer, C. Lion (Panthera leo) populations are declining rapidly across Africa, except in intensively managed areas. Proceedings of National Academy of Sciences of the United States of America 2015; 112(48) 14894–14899 https://doi.org/10.1073/pnas.1500664112.
4. Curry, C. A century of conservation genetics: Comparative study on the African Lion. Applied Biodiversity Science Perspectives Series 2016; 6, 17–24. https://hdl.handle.net/1969.1/158200.
5. A century of decline: loss of genetic diversity in a southern African lion-conservation stronghold;Dures SG;Diversity and Distribution,2019