When Japanese scientists wanted to learn more about how ground stone tools dating back to the Early Upper Paleolithic might have been used, they decided to build their own replicas of adzes, axes, and ...
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Was it a stone tool or just a rock? An archaeologist explains how scientists can tell the difference
Have you ever found yourself in a museum's gallery of human origins, staring at a glass case full of rocks labeled "stone tools," muttering under your breath, "How do they know it's not just any old ...
The first stone tools that ancient humans made were deceptively simple. At least 2.6 million years ago, our ancestors learned to strike stones and break off sharp flakes that could function as knives.
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