Title |
An Intermediate in the evolution of superfast sonic muscles
|
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Published in |
Frontiers in Zoology, November 2011
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DOI | 10.1186/1742-9994-8-31 |
Pubmed ID | |
Authors |
Hin-Kiu Mok, Eric Parmentier, Kuo-Hsun Chiu, Kai-En Tsai, Pai-Ho Chiu, Michael L Fine |
Abstract |
Intermediate forms in the evolution of new adaptations such as transitions from water to land and the evolution of flight are often poorly understood. Similarly, the evolution of superfast sonic muscles in fishes, often considered the fastest muscles in vertebrates, has been a mystery because slow bladder movement does not generate sound. Slow muscles that stretch the swimbladder and then produce sound during recoil have recently been discovered in ophidiiform fishes. Here we describe the disturbance call (produced when fish are held) and sonic mechanism in an unrelated perciform pearl perch (Glaucosomatidae) that represents an intermediate condition in the evolution of super-fast sonic muscles. |
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