Blade cores provided a portable source of stone or obsidian for manufacturing different kinds of tools by flaking off pieces from the core. The basis of many Upper Paleolithic tool forms from both ...

The adoption of tools heralded the dawn of technology, and the oldest-known stone tools date to at least 3.3 million years ago. There have been examples of sporadic use of tools made from bone ...

The bone tools were created the same way tools were made from stone. Scientists may not have been giving early human ancestors enough intellectual credit, as evidenced by a new find in Tanzania.