5 ms·

What's the opposite of a dog whistle?

• AussieWog93 5y ago
  I've read that elephants can produce very low frequency sounds (sub-20Hz) that travel long distances and can't be perceived by smaller animals. "Elephant infrasound" just doesn't quite have the same ring to it as "dog whistle", though.
  • noisy_boy 5y ago
    "Trunk call"?