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 ...

Terms of Service and Privacy Policy. A team of archeologists in South Africa had to climb to new heights to find an important set of tools made by humans about 20,000 ...

A local worker initially noticed stone tools and animal fossils eroding from the soil. Archaeologists later recovered 330 artifacts, including 42 Oldowan tools—primitive instruments used for ...

Researchers have unearthed stone tools that date back to at least 3.3 million years ago, but before this discovery, the oldest known bone tools were found at European sites believed to be 250,000 ...