A new study sheds light on tattoo designs found on more than 100 mummies from Chancay culture, a group that lived on the Peruvian coast between roughly 900 and 1500 C.E.

Delicately detailed tattoos have been discovered etched onto the bodies of 1,200-year-old mummies uncovered in Peru. Although the passing of centuries has faded these once-living artworks, new research is uncovering the remarkable skill and complexity with which they were created.