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Full-Text Articles in Biological and Physical Anthropology
Computed Tomography Of The Mandibles Of A Stranded Offshore Killer Whale (Orcinus Orca), Karisa N. Tang, J. N. Winer, Tori L. Mcklveen, Michael A. Etnier, L. Legendre, M. Haulena, Martha Ann Delaney, Joseph K. Gaydos
Computed Tomography Of The Mandibles Of A Stranded Offshore Killer Whale (Orcinus Orca), Karisa N. Tang, J. N. Winer, Tori L. Mcklveen, Michael A. Etnier, L. Legendre, M. Haulena, Martha Ann Delaney, Joseph K. Gaydos
Anthropology Faculty and Staff Publications
A mature, adult female, offshore killer whale (Orcinus orca) was stranded deceased in Portage Bay, Alaska, in October 2015. Full necropsy examination with histopathology was performed. Consistent with previous studies of offshore killer whales, and thought to be a result of their unique elasmobranch diet, all the teeth were significantly abraded and almost flush with the gingival margin. Age was estimated at 30–35 years based on annuli and growth arrest lines in a remaining tooth. The dentate portion of the mandibles were excised en bloc and frozen until imaging could be completed. Radiography and computed tomography revealed …