Monday Night Football has again produced a bizarre NFL officiating controversy. The mistake limited the Patriots' yardage on a pass to receiver Danny Amendola. In addition, an initial reading of the ...

Add Yahoo as a preferred source to see more of our stories on Google. Creepy Aztec death whistle Ranging from a threatening hiss to a blood-curdling scream, the sound of the Aztec death whistle is as ...

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 ...

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 ...