In a scientific “first,” a tiny heart structure composed of human cells has been successfully grown within a pig embryo.

Scientists tracked how human immune cells attack pig kidneys after transplant—and found a way to fight back using precision ...

But there's a problem, and a big one at that: The body naturally wants to reject any tissue it knows it didn't manufacture.

A team of scientists from France and the United States has taken an important step toward understanding how the human body ...

And it could not be better timed—the first US-based clinical trials of pig kidney transplantation into living humans begin ...