text: On this issue the Council of Trent is quite explicit: Catholics are required to believe Adam is the single father of the human race and that Original Sin is passed on by physical generation from him to the entire human race. Its not something symbolic or allegorical (although mysterious). The First Vatican Council reiterated the doctrine, as did Pope Pius XII in his 1950 encyclical Humani Generis.
  
  This does not deny evolution. It does mean that however Adam came to be, there were no forebears who possessed immortal souls and therefore were truly humans comprised of body and soul.