Archaeological digs on the Torres Strait island of Mabuiag have shown evidence of more than 7000 years of human habitation.
The radiocarbon dated stone flakes and animal bones are from just after the land bridge between Australia and Papua New Guinea was flooded by rising sea levels.
The findings challenge current theories about what happened to the people living in the region, if they stayed or fled and were replaced by others.
Dr Duncan Wright from Griffith University spoke with Queensland correspondent Stefan Armbruster about his research that is about to be published in the journal Australian Archaeology.
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