化石分析表明,早期人类祖先萨赫兰特罗普斯 (Sahelanthropus tchadensis) 的双脚是700万年前出现的,这使得证据的时间推迟了100万年. Fossil analysis suggests bipedalism in early human ancestor Sahelanthropus tchadensis emerged 7 million years ago, pushing back evidence by a million years.

一项新研究分析一个700万岁的灵长类动物(Sahelhomanus tchadensis)的化石股骨, 表明早期的两足适应比先前想象的早得多。 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. 研究人员查明了与直立行走有关的类似人类的骨骼特征,例如股骨扭动和肌肉和颈部粘合的粘合结构,表明在原为类猿的祖先中可能存在双足主义。 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. 虽然研究结果将两条腿走路的起源推回了大约一百万年,但专家们告诫说,确定的证据需要更完整的化石,如骨盆或膝盖关节,这些化石仍未被发现。 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. 这项研究有助于目前关于人类运动逐渐演变的辩论,尽管确切的时机和环境驱动因素仍然不确定。 The study contributes to ongoing debates about the gradual evolution of human locomotion, though the exact timing and environmental drivers remain uncertain.