Recently, doctors at a Maryland hospital in the US performed a pig heart transplant in a last attempt to save a patient’s life. This has been done for the first time in the history of medicine. The patient is recovering after three days of this surgery. It is an important step in the decades-long debate over using animal organs for life-saving transplants. However, it is too soon to know whether the operation will work. According to doctors at the University of Maryland Medical Center, the transplant highlights how the heart of a genetically modified animal can function in the human