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Radiation risk can be measured, understood and controlled in ways that keep people safe, including from contaminated foods.

Add Yahoo as a preferred source to see more of our stories on Google. Chemicals in your tooth enamel record evidence of your diet that can last millions of years. Zelalem Bedaso Teeth are like tiny ...

Teeth are like tiny biological time capsules. They tell stories about ancient diets and environments long after their owners have died and landscapes have changed. After bones break down, tooth enamel ...

Through fossilized tooth enamel, scientists are reconstructing the diets of humans’ early ancestors and landscapes that existed millions of years ago. We really are what we eat, finds associate ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Zelalem Bedaso, University of Dayton (THE CONVERSATION) Teeth are like tiny biological ...