Archaeologists found stone tools humans used to butcher animals in what's now Oregon. AdvertisementAdvertisementAncient hunters used a rock-shelter in the Oregon desert to butcher camels, bison, mountain sheep, and horses during the Ice Age. In 2012 and 2015, archeologists found blood-stained stone tools buried below teeth from the extinct animals. The stone tools were below fragments of animal teeth, and both were covered by volcanic ash. "It's a really high-quality tool stone," O'Grady said.

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Persons: —, Patrick O'Grady, O'Grady, " O'Grady, Nancy Pobanz, Thomas W, Stafford , Jr, it's Organizations: Service, University of Oregon Museum of Natural, Age Swiss, Swiss Army, US, Coopers Locations: what's, Oregon, Mount St, Helens, Swiss, North America, Siberia, Canada, Idaho, Rimrock, Paisley, North, South America