A seven-million-year-old skull found in Chad sits at the center of a long argument about human origins. The species, Sahelanthropus tchadensis, was announced in the early 2000s as a possible early ...
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Tiny bump on 7 million-year-old fossil suggests ancient ape walked upright — and might even be a human ancestor
The discovery of a never-before-seen bump on the leg bone of a 7 million-year-old fossil ape shows it walked upright on two legs while it was on the ground, a new study finds. Only members of the ...
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