Long before cities or farms, the earliest humans were standing in a changing northern Kenyan landscape, striking stone to stone with steady hands. Their world was noisy with wind, heat, wildfires, and ...

Our prehistoric human ancestors relied on deliberately modified and sharpened stone tools as early as 3.3 million years ago. The selection of rock type depended on how easily the material could be ...

For decades, textbooks painted a dramatic picture of early humans as tool-using hunters who rose quickly to the top of the food chain. The tale was that Homo habilis, one of the earliest ...