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flag Fossil analysis suggests bipedalism in early human ancestor Sahelanthropus tchadensis emerged 7 million years ago, pushing back evidence by a million years.

flag A new study analyzing fossil femurs from a 7-million-year-old primate, Sahelanthropus tchadensis, suggests early bipedal adaptations emerged much earlier than previously thought. flag Researchers identified human-like bone features linked to upright walking, such as a femoral twist and bony structures for muscle and ligament attachment, indicating possible bipedalism in an otherwise ape-like ancestor. flag While the findings push back the origins of walking on two legs by about a million years, experts caution that definitive proof requires more complete fossils, like a pelvis or knee joint, which remain undiscovered. flag The study contributes to ongoing debates about the gradual evolution of human locomotion, though the exact timing and environmental drivers remain uncertain.

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