More chilling than a werewolf's howl, the human scream sends shivers down the spine. And we're not talking about the one that comes from the mouths of groupies at a ...

Humans scream for a variety of reasons, and new research shows that only half of those reasons are due to some type of fear.

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 ...

Archaeologists have discovered numerous ceramic or clay whistles at Aztec sites, dubbed “death whistles” because of their distinctive skull shapes. A new paper published in the journal Communications ...

A small clay object is placed to the lips, then air enters a narrow channel, collides inside a hidden chamber, and comes out ...

When the Aztecs dominated central Mexico, a blood-curdling sound like a human scream played through a small whistle. Luis Aceves via Unsplash In cultures around the world, instruments have brought ...