June 27, 2018

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Knowing what extinct animals ate has long been determined by analyzing carbon isotopes locked inside fossil teeth. For two decades, a key isotope value in these equations has been assumed to be the same for all plant-eating mammals, but new research led by the American Museum of Natural History and Columbia University contradicts that assumption, revealing that the value changes with body size. Credit: © AMNH/D. Finnin Full Story

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American Museum of Natural History

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