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Bison Bones Shed Light on Demise of Large Mammals
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Bison Bones Shed Light on Demise of Large Mammals

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Bison Bones Shed Light on Demise of Large Mammals

Bison Bones Shed Light on Demise of Large Mammals
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  • <iframe src="https://www.npr.org/player/embed/4187673/4187674" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

About half of the large mammals in North America went extinct about 12,000 years ago. Scientists have long debated whether that was caused by hunting or climate change. A new study of ancient bison bones sheds light on the mystery. NPR's Richard Harris reports.

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