Sarcosuchus, the "Flesh Crocodile," puts the modern saltwater crocodile to shame. At an unbelievable twelve meters long, Sarcosuchus was one of the largest crocodile to ever live. It achieved this immense size by growing rapidly, spending less time as a vulnerable smallfry. It had a very toothy grin, with 132 teeth per animal, and no doubt had a wicked offensive system. For defense, Sarcosuchus' back was adorned with a complete covering of osteoderms. This kept it protected while it floated on the surface of the water in search of food. If its land-living prey decided to fight back against this wide maw of certain death, the osteoderms would without doubt have deflected it. Living in the Cretaceous freshwater tropical paradise that is now the Sahara Desert, Sarcosuchus had a veritable buffet set out before it. Among the most common species that it coexisted with were iguanodontids and species of coelacanth, which would have often been on the menu. However, it has been suggested that Sarcosuchus could not death roll like modern crocodylians can, so how it ate is still a mystery. It's safe to say, though, that no matter how this creature ate, you would not want to find yourself face-to-teeth with it.