The Aztec death whistle is a mesoamerican instrument designed to imitate a human scream, and was often used during battle or at sacrificial ceremonies. Researchers from the University of Zurich ...

The 'Aztec Death Whistle' terrified people five centuries ago. The effect seemingly is the same even now, stated the Daily Mail. This finding was confirmed by a study published in the journal ...

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 ...