Supporters of the knuckle-walking origin think we and African apes evolved from a common knuckle walking ancestor.

支持拳步起源的人认为，我们和非洲猿来自一个共同的拳步行走的祖先。

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Kivell and Schmitt think this suggests the independent evolution of knuckle-walking behavior in the two African ape lineages.

凯威尔和施密特认为这表明了在两个非洲类人猿谱系中关节行走行为的独立进化。

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The chimpanzees and bonobos have a more extended-wrist way of knuckle-walking which gives them added stability on branches, the researchers concluded.

研究人员得出这样的结论，黑猩猩和倭黑猩猩的前肢腕关节功能，超出拳步行走的范畴，增加了他们在树枝上活动的稳定性。

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