Do you know, Human can hear some range of voice 20-20,000 Hz
But animals can hear more than that.
dog 67-45,000 cat 45-64,000 cow 23-35,000 horse 55-33,500 sheep 100-30,000 rabbit 360-42,000 rat 200-76,000 mouse 1,000-91,000 gerbil 100-60,000 guinea pig 54-50,000 hedgehog...