The undisputed king of the African savanna, the lion commands respect with a bone-crushing bite force and claws that can shred steel-drum lids. Hunting in coordinated prides, a male lion's 550-pound frame and thunderous roar can be heard from five miles away. Few animals dare challenge this apex predator on its home turf.

The 40-foot, 9-ton apex predator that ruled the Cretaceous period with the strongest bite force ever measured in a terrestrial animal—12,800 pounds of bone-crushing fury. Its banana-sized teeth could pulverize anything that walked, ran, or made the fatal mistake of existing nearby. Sixty-six million years of extinction haven't diminished its reputation one bit.