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篇章：脚不能沾地的尼泊尔活女神 Biologists say that as apes evolved into humans, their faces took on fighting features such as thicker jaws and foreheads. 生物学家们认为，当类人猿进化成人类时，为了适应打斗，他们的下颌和额头变得更厚实。 The characteristics were previously thought to be adaptations for a diet of hard-to-chew foods, such as nuts. 之前，这种人脸特征被认为是为了适应那些难以咀嚼的食物，比如坚果。 But researchers at the University of Utah point out that they developed around the same time as humans acquired the ability to curl their hand into a club-like fist. 但犹他大学的研究者们指出，这种现象是和人类能够握拳这一现象同时出现的。 Professor David Carrier said the changes could have been to better protect the face when punched. 大卫-卡里尔教授认为，人脸的改变，是为了被拳头击打时对脸部提供更好的保护。 He said: If indeed the evolution of our hand proportions were associated with selection for fighting behaviour you might expect the primary target, the face, to have undergone evolution to better protect it from injury when punched. 他说：如果我们的手部比例真的是为了打斗才进化成现在的样子，那可想而知拳头的主要目标脸，为了在打斗中更好的保护自己，发生了趋同进化。 | 
