13,000-Year-Old Stone Tool Cache in Colorado Shows Evidence of Camel, Horse Butchering

(PhysOrg.com) -- A biochemical analysis of a rare Clovis-era stone tool cache recently unearthed in the city limits of Boulder, Colo., indicates some of the implements were used to butcher ice-age camels and horses that roamed North America until their extinction about 13,000 years ago, according to a University of Colorado at Boulder study.

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<p><a href="http://www.physorg.com/news154784759.html">13,000-Year-Old Stone Tool Cache in Colorado Shows Evidence of Camel, Horse Butchering</a></p> <p>(PhysOrg.com) -- A biochemical analysis of a rare Clovis-era stone tool cache recently unearthed in the city limits of Boulder, Colo., indicates some of the implements were used to butcher ice-age camels and horses that roamed North America until their extinction about 13,000 years ago, according to a University of Colorado at Boulder study.</p>