Scientists use AI and high-tech scans in Peru’s Nazca desert; The result was 303 hidden geoglyphs.
Remarkably, AI (artificial intelligence) managed to identify 303 new relief-type geoglyphs within just half a year, which almost doubles the list of known figures, according to the published study. PNAS. These newly found artefacts mainly show human figures, domesticated animals and severed heads. It provides a profound insight into both the ritual and everyday life of the Nazca people who created them 2,000 years ago.
303 hidden geoglyphs identified in Peru by AI and high-tech scan
Nazca research presents a significant challenge due to the vastness of the desert and how small geoglyphs, such as relief ones, are destroyed over time. Scientists have made a breakthrough using deep-learning AI to analyze existing data. This allowed them to review high-resolution satellite images with remarkable accuracy; AI (Artificial Intelligence) identified potential sites 20 times faster than human experts. It efficiently filtered out irrelevant data and picked up on patterns that suggested human-made structures. As a result, this mixture of technology and historical study transformed the work that could have been accomplished in a century.
Why does scale matter in Nazca?
Archaeologists have classified these figures into two main categories. These include the famous linear geoglyphs, giant images that often represent birds or whales. The second category is small relief geoglyphs. Interestingly, most of the recent 303 discoveries fall in the relief category. As research published on PNAS explains, these were created by removing darker stones to expose lighter sand in elaborate, smaller designs. These are usually found on old footpaths rather than wide open fields. This shows that they were meant for travelers passing by on foot, not for viewing from above.
Why are there ‘human’ subjects in the new data?
The 303 geoglyphs present an image that is different from what we have seen before. Typically, larger linear figures depict animals, but these small relief carvings lean towards ‘human-related’ subjects. Among them, researchers discovered numerous images that included people in formal attire, pet llamas and even gruesome depictions of severed heads. This variation indicates a different social role for these relief geoglyphs. It seems likely that they may have been used for rituals or to define territorial boundaries within local communities.
The role of AI in conservation and urban mitigation
According to the study published on PNAS, AI (Artificial Intelligence) plays a vital role in preserving UNESCO World Heritage Sites, providing much more than just the excitement of discovery. The Nazca Pampa faces threats such as urban sprawl, mining activities and environmental change. Researchers could rapidly map and document 303 new sites, providing precise coordinates for the Peruvian government to create protection zones. This digital record remains available to future generations even if the physical sites deteriorate.