New limb‑bone analyses published in Science Advances suggest Sahelanthropus tchadensis (≈7 Ma) shows functional traits consistent with habitual bipedalism. If accepted, this moves a key behavioral marker for hominins earlier in time and places important evolutionary developments in central Africa rather than only East Africa.
— An earlier, more geographically diverse origin for bipedalism changes textbooks, public narratives about human uniqueness, and priorities for African fossil surveys and funding.
Molly Glick
2026.01.02
100% relevant
The article cites Science Advances and reports reanalysis of ulnae and a femur fragment attributed to S. tchadensis found in Chad, interpreted as evidence supporting upright walking.
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