The discovery of 330 stone artifacts in Kenya that date back 2.9 million years is throwing light on a key question in human evolution — who first used stone tools? Scientists unearthed hammerstones, ...
Evidence suggests the tools were used by the human relative Paranthropus, which scientists previously believed relied only on its teeth and jaws to eat. Scientists have unearthed more than 300 stone ...
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The discovery of ...
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