Stone toolmaking difficulty and the evolution of hominin technological skills | Scientific Reports
Stone Tools | The Smithsonian Institution's Human Origins Program
Hand axes unearthed in Kenya are oldest advanced stone tools ever found | Anthropology | The Guardian
Stone tool - Wikipedia
Oldest stone tools pre-date earliest humans - BBC News
Stony Brook Scientists Discover Oldest Stone Tools on Record - SBU News
Oldest Stone Tools Ever Found Were Not Made by Human Hands, Study Suggests : ScienceAlert
Oldest Stone Tools Outside Africa Unearthed in China | Smart News| Smithsonian Magazine
The world's earliest stone technologies likely to be older than previously thought - News Centre - University of Kent
Archaeologists in China Discover the Oldest Stone Tools Outside Africa - The New York Times
77,000-yr-old stone tools oldest, most sophisticated discovered in South Africa
World's oldest stone tools discovered in Kenya - The Archaeology News Network
These Stone Tools Made 2.6 Million Years Are the Oldest of Their Kind
Stone found in Israel is oldest known tool in world used for 'delicate' abrading | The Times of Israel
Oldest stone tools in the Americas claimed in Chile | Science | AAAS
Researchers Find 2.6-Million-Year-Old Oldowan Tools in Ethiopia | Archaeology, Paleoanthropology | Sci-News.com
Scientists find world's oldest stone tools - CBS News
Oldest stone tools pre-date earliest humans - BBC News
OLDEST STONE TOOLS AND WHO USED THEM | Facts and Details
Archaeologists in China Discover the Oldest Stone Tools Outside Africa - The New York Times
2.4-Million-Year-Old Stone Tools Found in Algeria - The Atlantic
Oldest stone hand axes unearthed
Oldest east African stone-age tools discovered in western Kenya | Africanews
Scientists Discover Oldest Evidence of Stone Tool Use and Meat-Eating Among Human Ancestors | California Academy of Sciences
The Oldest Stone Tools Yet Discovered Are Unearthed in Kenya | Science| Smithsonian Magazine
