Sexual dimorphism in ultrasonic vocalizations of mice (Mus musculus): gonadal hormone regulation.


Male mice (Mus musculus), during courtship and sexual behavior, vocalize substantially more 70-kHz ultrasounds than do females. Four experiments demonstrated that testosterone propionate (TP) substantially increased ultrasonic emissions and mounting by ovariectomized females and the long-term gonadectomized males and females increased their amount of… (More)


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