Ancient Bison Teeth Provide Window on Past Great Plains Climate, Vegetation

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The third molar from a bison jawbone grows to 3 inches in length and has several times more surface area than a quarter. Credit: Kathryn Hoppe
The third molar from a bison jawbone grows to 3 inches in length and has several times more surface area than a quarter. Credit: Kathryn Hoppe

A University of Washington researcher has devised a way to use the fossil teeth of ancient bison as a tool to reconstruct historic climate and vegetation changes in America's breadbasket, the Great Plains.


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