Time Travel, The Evolution of Teeth, and More

What began in the ocean half a billion years ago has led us to the dentist's chair.

Baby in a box. B. F. Skinner’s “air crib” promised to solve parenting woes with gadgeteering. The public reception was decidedly mixed... more »

The evolution of teeth. What began in the ocean half a billion years ago has led us to the dentist's chair... more »

A generation of students raised on an ethic of sexual egalitarianism struggles to confront a ke…