© 2026

Winston-Salem News
Greensboro News
High Point News
Boone/High Country News
Public Radio for the Piedmont and High Country
DONATE
Play Live Radio
Next Up:
0:00
0:00
0:00 0:00
Available On Air Stations

What teeth enamel tells us about ancient human diets

NPR | By Nathan Rott
Published June 5, 2026 at 4:19 PM EDT

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.

Copyright 2026 NPR
Nathan Rott
Nathan (Nate) Rott is a correspondent on NPR's Science Desk, where he reports on the natural world and humanity's relationship to it.

Support quality journalism, like the story above,
with your gift right now.

Donate