Archaeologists in Peru have found the naturally mummified remains of five llamas that were sacrificed to the Incan gods about 500 years ago. The mummified llamas are still adorned with the colorful strings, red paint and feathers that the Inca decorated them with before sending them to their deaths, likely by burying these animals alive. The finding is so rare, that even though archaeologists have been excavating the remains of the Inca Empire (also spelled Inka) along the Pacific Coast of South America for more than a century, "none of them have found anything like this," study lead researcher Lidio Valdez, an adjunct assistant professor in the Department of Anthropology and Archaeology at the University of Calgary in Canada, told Live Science.