Many of the body's biggest flaws are the result of evolution building on old designs instead of starting over. Our spine, ...

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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, ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Each human is a ...

It seems like every week, there’s a new headline about some kind of sci-fi-esque organ transplant. Think eyeballs, 3D-printed kidneys, pig hearts. In her new book, Replaceable You: Adventures in Human ...

The human body also regenerates, in short, dead cells are replaced by newly produced ones. In humans, for example, this is the case in the intestinal mucosa or the liver. However, other creatures have ...

Have you ever felt like there was a pit in your stomach? What about a flutter in your heart? It turns out that the anatomical connections we make with certain emotions and feelings — what researchers ...

Things in Dr. Anthony Atala’s lab at Wake Forest University are not always what they seem. On one lab bench, surrounded by gutted printer cartridges, lie the inner workings of an inkjet printer. But ...

Many body parts can be transplanted or replaced with artificial equivalents, including corneas, livers, hearts, joints, and even entire faces. This technology will improve by leaps and bounds ...

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