Sound has the incredible ability to instill a certain kind of emotion into whoever hears it. The soulful call of a loon feels ...

Archaeologists unearthed the first Aztec death whistles, also known as ehecachichtlis, in 1999 while excavating the Tlatelolco site in Mexico City. They found the body of a sacrificial victim, a ...

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

The mysterious Aztec "death whistles" have fascinated researchers with their eerie, terrifying effect they have on the ...