Ultrasonic frogs show hyperacute phonotaxis to female courtship calls

kavin submitted, created time 7 months 3 weeks (www.ncbi.nlm.nih.gov)

Here the authors show that before ovulation, gravid females of O. tormota emit calls that are distinct from males' advertisement calls, having higher fundamental frequencies and harmonics and shorter call duration. In the field and in a quiet, darkened indoor arena, these female calls evoke vocalizations and extraordinarily precise positive phonotaxis (a localization error of

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