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Published online 30 October 2008 | Nature | doi:10.1038/news.2008.1196
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Technological innovation may have driven first human migration
Ancient tools give up their makers' secrets.
Technological innovation is more likely to have spurred the first modern humans to migrate out of Africa than climate change, according to a study that has accurately dated sophisticated stone tools made by our ancestors.
Scientists have long argued about the forces that drove the transition to modern human behaviour after our species evolved in Africa up to 280,000 years ago.
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