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Science 16 July 2004:
Vol. 305. no. 5682, pp. 349 - 350
DOI: 10.1126/science.1101134
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Perspectives

PHYSIOLOGY:
Heeding the Hormonal Call

Harold Zakon

Biologists have long been puzzled by an apparent mismatch between the sensitivity of the auditory system of the female midshipman fish to courtship vocalizations by the male. In his Perspective, Zakon reveals that the sensitivity of the female's auditory system is tuned by the steroid hormone estrogen so that the female is most responsive to male mating calls during the mating season (Sisneros et al.).

The author is in the Section of Neurobiology, University of Texas, Austin, TX 78712, USA. E-mail: h.zakon{at}mail.utexas.edu

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Science. ISSN 0036-8075 (print), 1095-9203 (online)