Two of the most popular prehistoric felids standing right next to each other; comparisons are regularly drawn between the two. In terms of body weight/height/length the American Lion (Panthera Atrox) has the edge, however, for its size the Smilodon Fatalis is enormously bulky with very thick limbs. In the comparison above you see two max. sized individuals scaled to shoulder heights of 110cm and 125cm respectively. The models are provided by "Prehistoric Fauna", a website which focuses on the reconstruction of ancient animals; make sure to check it out!