A 90,000- year-old bone knife tips unique tools appeared early in Africa

A 90,000- year-old bone knife tips unique tools appeared early in Africa The artisan made the knife out of a mammal rib bone, and shaped and sharpened it into a 13cm long knife through a series of steps. Morocco is home to the oldest known bone artefact in the world: a 90,000-year-old knife which, according to a new report, archaeologists […]
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