BACKGROUND: Ultrasonic vocalizations (USVs) emitted by muroid rodents. including laboratory mice and rats. are used as phenotypic markers in behavioral assays and biomedical research. Interpretation of these USVs depends on understanding the significance of USV production by rodents in the wild. https://www.bekindtopets.com/hot-super-Chervo-Marco-Jacke-Herren-limited-grab/