Mega Piranha: A Modern Twist to a Primal Predator

The 2010 film "Mega Piranha" brought to life the piranha's prehistoric ancestor, which was several times bigger, and aptly named Megapiranha. The only remains of this ancient fish were first found in Argentina in the 1900’s, from which scientists deduced they existed during the Miocene period (5 to 23 million years ago), and had a biting force 30 times its own weight.