When Luke Skywalker received a perfect bionic replacement for the hand that was cut off in Star Wars Episode V, the idea of replicating human organs and body parts seemed far-fetched. Thirty years ...

He sees. he walks. his heart pumps blood. But Rex, as he’s called in the U.K., where he just debuted, is not human. In fact, he’s not even alive. He is the world’s most advanced bionic man, created as ...