A fossil bone found in Yukon reveals that all North American bison descended from a single female that crossed into the Americas less than 200,000 years ago.
Read MoreFriday, April 19, 2019
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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
