Oldest Known Stone Tools Discovered: 3.3 Million Years Old | National Geographic

Stony Brook University archaeologists Sonia Harmand and Jason Lewis find the earliest evidence of stone tool making - dated at 3.3 million years old.
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Read more in "Wrong Turn Leads to Discovery of Oldest Stone Tools"
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VIDEO COURTESY: Stony Brook University
Oldest Known Stone Tools Discovered: 3.3 Million Years Old | National Geographic
• Oldest Known Stone Too...
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