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.

Bigfoot is certainly popular in terms of cinematic representation. However, Bigfoot hasn’t spawned as many iconic movies as ...