Human behaviour, as we know it, emerged 44,000 years ago - much earlier than previously thought, according to a new study.
An international team of scientists have substantially increased the age at which we can trace the emergence of modern culture, thanks to research into hunter-gatherers in South Africa.
A key question in human evolution is when in prehistory human cultures similar to ours emerged.
Until now, most archaeologists believed that the oldest traces of the San people - a hunter-gatherer culture in southern Africa - dates back 10,000, or at most 20,000 years.
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