A surprising archaeological discovery in southwest China is shaking up what scientists thought they knew about ancient humans ...

This artifact was used for scraping fur from animal hides. For European and American Stone Age peoples, end scrapers served as heavy- duty scraping tools that could have been used on animal hides ...

But more recent findings show that stone age technology developed and spread more slowly. The stone scraper - thick, asymmetrical, and with a sharp edge - represents the hallmark of the Quina system.

They once thought their appearance was revolutionary. But more recent findings show that stone age technology developed and spread more slowly. The stone scraper — thick, asymmetrical, and with a ...

This artifact was used for scraping fur from animal hides. For European and American Stone Age peoples, end scrapers served as heavy- duty scraping tools that could have been used on animal hides ...