If you needed more proof that science is amazing, doctors have transplanted a pig heart into a patient in a “do or die” effort. The hugely-experimental surgery took place in a hospital in America’s Maryland, and while it’s too soon to know that it’s worked, the patient – 57yo handyman David Bennett – is doing well 3 days post-op. “It was either die or do this transplant. I want to live. I know it’s a shot in the dark, but it’s my last choice,” Bennett said before the transplant. Previous efforts to use animal organs have failed, with patients’ bodies rejecting it soon after. This time surgeons used a heart from a genetically modified animal that doesn’t have a specific sugar in its cells responsible for organ rejection. The group that manages transplant lists in the US says it’s a “watershed event”, but others aren’t counting it as a success quite yet.