Welcome Technic to the Discord Family! Minecraft modders get Discord Love. A few months back the guys over at Technic started talking to us about Discord. They were early fans and after some time we decided to work with them and collaborate where it made sense.
USA: Prentice-Hall, 2002. Many animals can hear ultrasonic frequencies; dogs, for example, can hear sounds as high as 50,000 Hz, and bats can detect frequencies as high as 100,000 Hz.. Hearing Range in Animals. MSN Learning and Research. Microsoft Corporation.
I hope this helps you. Dogs hear at a wider range of frequencies than humans. The low end of the range is similar to humans (humans hear down to about 20 Hertz, or cycles per second, dogs are at about 40 Hz). But at the high end, they are quite different.