Sexual behavior: ultrasonic postejaculatory song of the male rat.
During the refractory period that follows ejaculation, the male rat regularly emits 22-kilohertz vocalizations. These cease after about three-fourths of the total period has elapsed, and this corresponds to an "absolute refractory period" during which the male cannot spontaneously initiate copulation. Similar 22-kilohertz vocalizations occur in other social contexts, and in general they appear to be desist-contact signals.
D000818:Animals; D003307:Copulation; D004542:Ejaculation; D008297:Male; D051381:Rats; D012726:Sexual Behavior, Animal; D013997:Time Factors; D014465:Ultrasonics; D014828:Vocalization, Animal