An unusual osteological formation in the posterior skulls of captive tigers (Panthera tigris)
Article first published online: 7 DEC 1998
Copyright © 1998 Wiley-Liss, Inc.
Volume 17, Issue 2, pages 135–142, 1998
How to Cite
Duckler, G. L. (1998), An unusual osteological formation in the posterior skulls of captive tigers (Panthera tigris). Zoo Biol., 17: 135–142. doi: 10.1002/(SICI)1098-2361(1998)17:2<135::AID-ZOO8>3.0.CO;2-A
- Issue published online: 7 DEC 1998
- Article first published online: 7 DEC 1998
- Manuscript Accepted: 27 JAN 1998
- Manuscript Received: 28 JUL 1997
- external occipital protuberance;
Examination of pathologies in a series of felid skulls from a museum collection spanning the past century revealed distinctively malformed external occipital protuberances in zoo specimens of Panthera tigris, a condition that was not present in the skulls of wild-caught individuals. Myological studies and comparative dissections together support a conclusion that the condition most likely arose from heightened rotation of the head and neck in the lateral plane, combined with reduced jaw activities during the lives of the affected individuals. Historical records in turn indicate that such activities were possibly consequences of the nonnatural diets and increased grooming behaviors fostered in captive environments. Zoo Biol 17:135–142, 1998. © 1998 Wiley-Liss, Inc.