Experts say a petroglyph in New Mexico’s Chaco Canyon may depict a solar eclipse from 920 years ago.
Read MoreMonday, May 21, 2018
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America’s Earliest Traces of Potato Use Found at 10,900-Year-Old Utah Shelter
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Rock Art in Chaco Canyon May Depict Ancient Solar Eclipse, Experts Say
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World’s Best-Preserved Armored Dinosaur, a ‘Mona Lisa’ of Fossils, Found in Alberta
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T. Rex Didn’t Have Feathers, New Study of Fossil Skin Finds
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America’s Most Complete Armored Dinosaur, Soft Tissues Intact, Found in Montana
