The Saber Toothed Cats (also known as Smilodon fatalis, Sabre-toothed Tiger, or just Smilodon) are large carnivorous big cats that lived in the late pleistocene in North America during the ice ages. In Zoo Tycoon: Dinosaur Digs and Zoo Tycoon 2: Extinct Animals. The species in the game, smilodon fatalis, roamed throughout North America. It lived alongside other species such as the Columbian Mammoth as well as species of bison and horse. Bison consisted of most of Smilodon's diet.