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.