Looney’s vibrant recovery is a morale boost in the quest to make animal-to-human transplants a reality. Only four other ...

Capillaries, on the other hand, are so small that it takes ten of them to equal the thickness of a human hair. Your body has about ... listen to your heart beat, you'll hear two sounds.

It also shows how the pacemaker cells restart her heart after the surgery. This short film is from the BBC series, Inside the Human ... on two key functions of the skin - protecting the body ...

The animal lived for two hours after surgery ... permanent total artificial hearts. There’s clearly more to do here; some basic questions, like does the human body have a physiological reason ...