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Archaeologists have discovered 168 previously unknown geoglyphs — often called Nazca Lines — that Indigenous people created more than a millennia ago in the Aja area, near the city of Nazca, Peru.
The newfound geoglyphs include outlines of humans, camelids, birds, killer whales, felines and snakes. It’s unknown why prehistoric people shaped the Nazca Lines, but one idea is that these features helped the Nazca people find water in the desert.
The newly discovered geoglyphs date to between 100 B.C. and A.D. 300 and were discovered during field surveys conducted between June 2019 and February 2020 by a team from Yamagata University in Japan, which worked with Jorge Olano, the head archaeologist for the Nazca Lines research program. The team used aerial photos and drones to make the discovery, they said in a statement (opens in new tab).
Related: New Nazca Line geoglyph discovered: A 120-foot-long cat
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In one image, a headless human holding what looks like a stick or club stands still as their head tumbles away. But while this scene looks like it might be from a battlefield, researchers saw it another way. “I think [this scene] might be a ritual depiction, not warfare,” Masato Sakai (opens in new tab), a professor of cultural anthropology and Andean archaeology who led the Yamagata University team, told Live Science in an email. The ritual depicted may involve a beheading.
The team has been searching for geoglyphs in this area for nearly a decade now. The newfound earthen artwork brings their discoveries to 358 geoglyphs in total, they said in the statement.
The team is helping develop artificial intelligence that can detect geoglyphs by analyzing aerial images. While AI was not used to find the 168 new geoglyphs, the team hopes to use the new geoglyphs to “teach” the system to find more as they comb the countryside for more of these ancient depictions, said Sakai. “We are using these detected geoglyphs for the AI research we are currently conducting,” Sakai noted.
Justin Jennings (opens in new tab), a…
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