A team of scientists from the University of Zurich, Switzerland, has created 3D reconstructions of several Aztec skull ...

“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 ...