Word: implementsâ
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Dates: during 1977-1977
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...remains similar to those uncovered by Broom. They produced convincing evidence that the massive-jawed robustus, which weighed 45 to 67.5 kg. (100 to 150 lb.), existed in the region nearly 2 million years ago. In the same deposits, the Leakeys also discovered pebbles chipped to form sharp-edged implements???evidence that even so far back, man's ancestors knew how to make tools...
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