What could possibly go wrong?
Researchers from the National Institutes of Health think thousands of human lives could be saved.
Made-to-order body parts?
For the very first time, researchers have not only transplanted kidneys grown from stem cells into rats and pigs, but also induced the kidneys to properly produce and excrete urine.
Doctor Xiaoping Ren in China plans to perform the first-ever head transplant on a monkey this summer, possibly paving the way for the surgical research to make its way to humans.