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Comment on “Human-like hand use in Australopithecus africanus

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Science  05 Jun 2015:
Vol. 348, Issue 6239, pp. 1101
DOI: 10.1126/science.aaa8414

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Skinner and colleagues (Research Article, 23 January 2015, p. 395), based on metacarpal trabecular bone structure, argue that Australopithecus africanus employed human-like dexterity for stone tool making and use 3 million years ago. However, their evolutionary and biological assumptions are misinformed, failing to refute the previously existing hypothesis that human-like manipulation preceded systematized stone tool manufacture, as indicated by the fossil record.

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