Thigh bone adds to mystery over 14,000-year-old Homo species

Leg fossil from Chinese cave raises controversial possibility of hybrid humans

bones from Red Deer Cave

THIGH PUZZLER  A newly described upper leg bone, shown here from two angles, from China’s Red Deer Cave (entrance shown, right) raises the controversial possibility that a now-extinct Homo species interbred with Homo sapiens, represented by these skull, jaw and tooth fossils from the same cave. 

D. Curnoe and Ji Xueping

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