Why it matters: Trump, who hours earlier backed Musk's email to federal employees asking them to outline what they accomplished at work last week, is giving the billionaire SpaceX founder extra teeth ...

We may earn commission if you buy from a link. Why Trust Us? A study out of Japan showed how targeting genes can regrow teeth in animals. Now, the team has turned to a human clinical trial.

That put wisdom teeth out of a job. Around 10,000 years ago, we began to farm and cook our food even more. With less work to do, our powerful jaws shrank, making it harder for those extra teeth to ...