article_snippet: Archaeologists have uncovered a stone tool in Oregon that suggests humans occupied the western US earlier than thought.
article_snippet: Scientists believe the primitive knife, discovered 12ft (3.6 metres) below ground, was used for cutting animal hides, butchering meat, and carving wood by pre-Clovis people.
article_snippet: Archaeologists have uncovered a stone tool in Oregon that suggests humans occupied the western US earlier than thoughtthe western US .
article_snippet: Much of discoveries at Two pre-Clovis sites indicate the people were involved in hunting, gathering and fishing, for which the people used bone tools.
article_snippet: Tests by Archaeological Investigations Northwest of Portland on blood residue on the agate scraper were consistent with the bovid family of animals, Thomas said.
article_snippet: The most likely bovine animal living in Oregon at that time would have been an ancestor of the buffalo.
highlights_snippet: The agate tool was used for cutting hides, butchering meat, and carving wood .
  