Bone artifacts discovered in Tanzania push back the earliest known date of bone tool technology by over a million years. In Olduvai Gorge, archaeologists have discovered a range of bone tools thought ...

Add Yahoo as a preferred source to see more of our stories on Google. Researchers study the markings left by ancient human ancestors when they used elephant and hippopotamus bones to create tools 1.5 ...

Add Yahoo as a preferred source to see more of our stories on Google. Bone artifacts discovered in Tanzania push back the earliest known date of bone tool technology by over a million years. In ...

(CNN) — Archaeologists have uncovered a collection of bone tools in northern Tanzania that were shaped by ancient human ancestors 1.5 million years ago, making them the oldest known bone tools by ...