5143018_ParkTravisPhDThesis24June2017.pdf (18.54 MB)

The evolution of hearing in Neoceti, with an emphasis on toothed mysticetes

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thesis
posted on 26.06.2017, 00:16 by TRAVIS PARK
This thesis investigates the hearing of toothed baleen whales, the fossil relatives of living baleen whales. Using high resolution CT imaging to see inside fossil earbones, I found that the inner ears of toothed baleen whales are similar to both early fossil whales like basilosaurids and modern baleen whales, whereas the basicranium and mandible are more similar to basilosaurids only, with significant modifications only being seen in modern baleen whales. Surprisingly, baleen whale hearing has remained relatively unchanged over the last 34 million years, being able to hear low frequency sounds prior to filter feeding, baleen and giant body size.

History

Campus location

Australia

Principal supervisor

Alistair Evans

Year of Award

2017

Department, School or Centre

Biological Sciences

Course

Doctor of Philosophy

Degree Type

Doctorate

Faculty

Faculty of Science

Exports

Categories

Exports