In a first, researchers in China have used pigs to grow early-stage kidneys made up of mostly human cells. The advance is a step closer to producing organs in animals that could one day be ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Researchers at Yale ...

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, ...

Using a special machine that pumps blood and other fluids around the body, researchers restored cells and organs in pigs an hour after the animals’ death by cardiac arrest. The feat holds the ...