A new research from the Chinese Academy of Sciences and Washington University in St. Louis indicates that inbreeding might well have been common among our ancestors. Buried for 100,000 years at Xujiayao in the Nihewan Basin of northern China, the recovered skull pieces of an early human exhibit a now-rare congenital deformation indicates this. The skull, known as Xujiayao 11, has an unusual perforation through the top of the brain case -- an enlarged ...
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