“Death whistles,” or Aztec skull whistles, were short, carved instruments made of two opposing chambers where air could clash ...

It sounds like a scream from the depths of the underworld. It’s a haunting, ear-piercing shriek that stirs something primal ...

Imagine an object so terrifying that its mere sound could make your blood run cold. Scientists say that's exactly what an ...

Luis Aceves via Unsplash In cultures around the world, instruments have brought music ... a single note from an Aztec whistle didn’t always indicate celebration — it meant death.