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A report that chimpanzees use tools to dig up roots for food suggests that early humans could have used the same method. Previous research had speculated that such early use of tools allowed hominins to colonize arid savannahs and survive periods of food shortages. However, evidence has so far been confined to isotopic analyses of tooth-wear and fossils. Adriana Hernandez-Aguilar et al. suggest that early hominins could have used tools to dig for food.

机译：一份关于黑猩猩使用工具挖掘食物根部的报告表明，早期人类可以使用相同的方法。先前的研究推测，这种早期使用的工具可使人参素在干旱的大草原上定居并度过粮食短缺的时期。但是，迄今为止，证据仅限于对牙齿磨损和化石进行同位素分析。 Adriana Hernandez-Aguilar等。这表明早期的人类素可能已经使用工具来挖食物。

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《Proceedings of the National Academy of Sciences of the United States of America》 |2007年第49期|p.19161-19162|共2页
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收录信息美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类自然科学总论;
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