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  • Sharp stones found in India signal surprisingly early toolmaking advances

Stone-tool makers in what’s now India redesigned their products in a revolutionary way much earlier than previously thought.

Excavated stone artifacts document a gradual shift from larger, handheld cutting implements to smaller pieces of sharpened stone, known as Middle Paleolithic tools, by around 385,000 years ago, researchers say. That shift mirrors a similar change seen in tools from a variety of hominid populations in Africa, Asia and Europe between about 400,000 and 200,000 years ago, including African Homo sapiens and European Neandertals.

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