Butchered bones found near site of 'Lucy', a probable human ancestor, who lived 3.2m years ago
The ancestors of early humans used stone tools to butcher animal carcasses nearly 1m years earlier than previously thought.
Archaeologists revised the date after spotting distinctive cut and crush marks made by stone tools on animal bones dating to 3.4m years ago.
The remains, including a rib from a cow-like creature and a thigh bone from an animal the size of a goat, were recovered from riverbed sediments in Dikika in the Afar region of northern Ethiopia during an expedition last January.
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