In “Replaceable You,” Mary Roach describes mind-boggling efforts to replace human body parts—and why it’s proven to be so ...

As a kid of the 1970s, Mary Roach sat in front of the TV watching “The Six Million Dollar Man” promise a techno-rebirth. “We can rebuild him,” the narrator intoned. “Better than he was before. Better.

Explore the fascinating world of the human body in this animated science video. Discover various human body parts and their ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Our bodies are like museums of evolution. We walk on two legs ...

Medical sculptor Damon Coyle walks around with a Mary Poppins bag of body parts. Fake ones, that is. At the University of Missouri, his lab creates hyperrealistic body parts designed to help medical ...

Rachel Feltman: For Scientific American’s Science Quickly, I’m Rachel Feltman. Humans have been trying to replace ailing parts of our bodies for thousands of years, turning to prosthetic limbs, ...

An NIH-supported initiative seeks to unravel how the nervous system tracks and regulates the body’s internal organs. How does ...

The human body is eerily similar to a complex machine, with countless delicate parts. These parts range from the tiniest of ...