Sound has the incredible ability to instill a certain kind of emotion into whoever hears it. The soulful call of a loon feels ...

Archaeologists unearthed the first Aztec death whistles, also known as ehecachichtlis, in 1999 while excavating the ...

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, carved instruments ...

An ancient Aztec Death Whistle comes with one of the "most terrifying" sounds in the world, according to experts. The item ...