sciencehabit writes "Analysis of the oldest known genetic material ever to be recovered from an early human reveals an unexpected chapter in the story of human evolution. Researchers extracted mitochondrial DNA from the femur of a 400,000-year-old hominin found in the Sima de los Huesos ('pit of bones'), an underground cave in the Sierra de Atapuerca in northern Spain. Because the early hominins looked a little like Neanderthals, researchers expected their mitochondrial DNA to share a common ancestor. However, mitochondrial DNA from the Spanish hominin was found to share a common ancestor with an enigmatic eastern Eurasian sister group to the Neanderthals, the Denisovans."
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