Add Yahoo as a preferred source to see more of our stories on Google. Stone tools are deliberately made by the hands of hominins, like these worked on by the author. John K. Murray Have you ever found ...

Sharp stone technology chipped over three million years allowed early humans to exploit animal and plant food resources, which in turn played a large role in increasing human brain size and ...

Scientists working in the desert badlands of northwestern Kenya have found stone tools dating back 3.3 million years, long before the advent of modern humans, and by far the oldest such artifacts yet ...

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Excavating stone artifacts that date from 3.3 million years ago in Kenya. MPK-WTAP, CC BY-NC-ND On the morning of July 9 2011, we were climbing a remote hill near the western shore of Lake Turkana in ...

On the morning of July 9, 2011, we were climbing a remote hill near the western shore of Lake Turkana in northern Kenya. Since then, conventional wisdom in human evolutionary studies has supposed that ...

Our ancestors were making stone tools some 700,000 years earlier than we thought, say archaeologists who have found the earliest stone artifacts, dating 3.3 million years ago. Our ancestors were ...