Chapter

Comparative Anatomy and Function of Hearing in Aquatic Amphibians, Reptiles, and Birds

Thomas Hetherington

in Sensory Evolution on the Threshold

Published by University of California Press

Published in print April 2008 | ISBN: 9780520252783
Published online March 2012 | e-ISBN: 9780520934122 | DOI: http://dx.doi.org/10.1525/california/9780520252783.003.0012
Comparative Anatomy and Function of Hearing in Aquatic Amphibians, Reptiles, and Birds

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This chapter discusses the structure and function of hearing in aquatic amphibians, reptiles, and birds. It examines patterns of evolutionary change in the auditory systems of amphibians, reptiles, and birds that have returned to an aquatic lifestyle. It begins with the basic features of the ancestral terrestrial auditory system, followed by the terrestrial auditory system underwater and the mechanisms used for underwater hearing. These mechanisms include sound transmission (bone conduction and pressure transduction) and sound localization. It also compares the auditory systems of aquatic amphibians, reptiles, and bird. Finally, it examines the evolutionary transformations of the ears of secondarily aquatic tetrapods.

Keywords: hearing; aquatic amphibians; aquatic reptiles; aquatic birds; auditory systems; sound transmission; bone conduction; pressure transduction; sound localization; secondarily aquatic tetrapods

Chapter.  15424 words.  Illustrated.

Subjects: Zoology and Animal Sciences

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