(CN) — Stone tools uncovered in central China suggest early humans there were far more inventive than scientists once believed, making complex tools tens of thousands of years earlier than expected.
Archaeologists say the tools, dating back as far as 160,000 years, include some of the earliest known examples of composite, or hafted, tools in the region. Such tools combine a stone working edge with a handle or shaft, a technique long associated with later periods in Africa and western Europe.
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