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

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

The Aztec skull whistle produces a shrill, screaming sound. A study shows that these whistles have a disturbing effect on the human brain. The Aztecs may have deliberately used this effect in ...

Aztec “skull whistles” found in ancient gravesites were designed to produce shrieking sounds and instil “otherworldly” fear even in modern people, scientists say. Archaeologists have ...

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Aztec “skull whistles” found in ancient gravesites were designed to produce shrieking sounds and instil “otherworldly” fear even in modern people, scientists say. Archaeologists have uncovered several ...

The mysterious ancient Aztec “death whistles” have a strange effect on the listener. Photo of skull-shaped death whistle. Credit: Jennysnest Wikimedia Commons CC BY-SA 4.0 The eerie, terrifying effect ...

Swiss and Norwegian neuroscientists have discovered that the ancient Aztec death whistle — often credited with emitting the scariest sound on earth — still terrifies people today due to a ...