Dental calculus is the richest known source of ancient DNA in the archaeological record. That stubborn mineralized plaque, once treated as little more than an unpleasant byproduct of life, has become ...

Add Yahoo as a preferred source to see more of our stories on Google. Deniz Celiker/Getty Images The link between good oral health and general health isn't a far-fetched notion. There's many pieces ...

In the Idea of Limits video, we introduce the idea of limits and discuss how it underpins all of the major concepts in calculus. In the Limit Laws video, we introduce the limit laws and discuss how to ...

The link between good oral health and general health isn't a far-fetched notion. There's many pieces about how your teeth can tell you a lot about the rest of your body. For example, poor oral hygiene ...