Felis; genus Felis (type genus of the Felidae: true cats and most wildcats). genus Lynx (lynxes). big cat; cat (any of several large cats typically able to roar and living in the wild). genus Panthera; Panthera (lions; leopards; snow leopards; jaguars; tigers; cheetahs; saber-toothed tigers).
A typical open heart surgery takes anywhere from four to eight hours depending on the procedure. This includes preparatory time, time to prepare arter A typical open heart surgery takes anywhere from four to eight hours depending on the procedure.
1 The operation takes 4 to 8 hours. In most cases, the lung with the worst function is removed.  For double lung transplants, the cut is made below the breast and reaches to both sides of the chest. Surgery takes 6 to 12 hours.