The return to water in ancestral Xenopus was accompanied by a novel mechanisms for producing and shaping vocal signals
U. Kwong-Brown, M. L. Tobias, D. O. Elias, I. C. Hall, C. P. H. Elemans, D. B. Kelley
The paper investigates how vocal signal production changed in secondary aquatic frogs, finding that sound is generated by laryngeal resonance modes rather than cavitation, with species-specific frequency ratios aiding species identification.
bioRxiv · Jul 3, 2018Zoology