What teeth enamel tells us about ancient human diets

from All Things Considered · host Nathan Rott

The enamel on our teeth is the hardest tissue on the human body. A new study looks at the nanoscale structure of enamel from teeth dating as far back as 18 million years ago to see how it's changed.

Episode metadata supplied by the publisher feed · Published Jun 5, 2026

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What teeth enamel tells us about ancient human diets

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