Early evidence found of sophisticated human tools
Friday, October 29, 2010 - 18:00
in Paleontology & Archaeology
Refined techniques for sharpening spear points date back more than 75,000 years, archaeologists say, much more than previously believed.Early humans developed sophisticated techniques for sharpening stone spear points more than 75,000 years ago, at least 50,000 years earlier than archaeologists had previously believed, researchers reported Thursday.