You hardly give them any thought, yet throughout the day, your teeth play critical roles in your life. Enabling you to enunciate words properly, chew food for better digestion, and greet other human ...

For most of human history, straight, well spaced teeth were the norm, not a luxury that required years of metal and elastic ...

Yara Haridy, an evolutionary biologist at the University of Chicago, likes to stun people by telling them that our skeletons evolved from a jawless fish. "Much of what we have today has been around ...