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 ...

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 ...