Male mice sing ultrasonic songs. I’d like to hear them.
Although the most widely appreciated vocalizations of mice are audible, it has been known for several decades that mice and other rodents also vocalize at ultrasonic frequencies. In the Holy laboratory, we recorded and analyzed the vocalizations of a sizable population of adult males. When the recordings were computationally shifted into the range of human hearing, these vocalizations were found to be subjectively reminiscent of bird songs.