The Aztecs were big fans of obsidian, and often used the razor-sharp volcanic glass to slice through the chests of human ...

The artifacts examined in the study were uncovered during excavations that took place over decades from the main Aztec temple of Tenochtitlán, called the Templo Mayor, in what is now Mexico City.

Video above: Archeologists find 164 peculiar sea creatures in ancient Aztec sacrificial altar Using ... took place over decades from the main Aztec temple of Tenochtitlán, called the Templo ...