= Ultrasonic vocalization
{wiki=Ultrasonic_vocalization}
Ultrasonic vocalization refers to sounds produced by animals that are at frequencies higher than the upper limit of human hearing, typically above 20 kHz. Many animals, including certain mammals and some species of birds, use these high-frequency sounds for communication, navigation, and other purposes. In particular, ultrasonic vocalizations are well-studied in rodents, such as rats and mice, where they are often associated with social interactions, mating behaviors, and even distress signals.
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