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About the Cover
Cover: The colonial Hawaiian sergeant damselfish Abudefduf abdominalis produces low frequency, low intensity pulsed sounds during close-range aggressive and reproductive behaviors (waveforms at left). Maruska and colleagues show that sound production and hearing abilities in this species are matched in the frequency domain (graph at right), which is consistent with the sensory drive model of signal evolution that the sender and receiver coevolve within the constraints of the environment to maximize information transfer of acoustic signals (see article by K. P. Maruska, K. S. Boyle, L. R. Dewan and T. C. Tricas, pp. 3990−4004). Photograph by Karen P. Maruska.
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