Red-bellied piranha Pygocentrus nattereri is distributed widely throughout the South America. They can be found in the warm freshwater rivers such as the Amazon, Rio Paraná, Rio Paraguay, Rio Essequibo. Piranha may inhabit flooded forests. Diet of red-bellied piranhas includes insects, worms, snails, shrimps, weak fishes. Provoked with smell of blood than can attack large animals - even a man.