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 ...

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.

(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 ...

View post: 40 Years Ago, This Weird, Genre-Bending Song Was No. 1 A new study, published on May 21 in the journal Nature, has revealed surprising information about the origins of human teeth. Our ...