Ultrasonic Animals That Vocalize at Frequencies Beyond Our Hearing Range
We humans live in such an audio bubble, with a hearing range of a mere 20 to 20,000 Hz (referred from here on as 20 kHz). Anything below this range is known as infrasound, and above that frequency ceiling is what we call ultrasound, or the wild chatter of the ultrasonic. There are many creators of…
