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

But in the forests of central Mexico, a single note from an Aztec whistle didn’t always indicate celebration — it meant death. “Death whistles,” or Aztec skull whistles, were short ...

The Aztec death whistle's scream-like sound evokes fear and symbolizes mythological deities, linking modern and ancient ...