The excavation of bone tools at Olduvai Gorge in Tanzania expands the range of ancient hominids’ cultural innovations.

The well-preserved bone tools, measuring up to around 16 inches, were likely made by breaking off the thick ends of leg bones and using a stone to knock off flakes from the remaining bone shaft.

WASHINGTON (AP) — Early humans were regularly using animal bones to make cutting tools 1.5 million years ago. A newly discovered cache of 27 carved and sharpened bones from elephants and hippos ...

Ancient Humans Made Tools From Animal Bones 1.5 Million Years Ago WASHINGTON (AP) — Early humans were regularly using animal bones to make cutting tools 1.5 million years ago. A newly discovered ...

The well-preserved bone tools, measuring up to around 16 inches (40 centimeters), were likely made by breaking off the thick ends of leg bones and using a stone to knock off flakes from the ...