The first human being who has lived with a pig's heart beating in his chest, the American David Bennett, died this Tuesday at the age of 57, two months after receiving the historic transplant, according to has confirmed the University of Maryland Medical Center (USA), where the operation was performed. The heart belonged to a genetically modified pig the Revivicor company to facilitate the fit of the organ in the human body and avoid rejection. The medical institution has stressed that the organ “functioned very well” during the first weeks and that Bennett, who suffered from very serious heart failure, was conscious until the last hours of his life.