red-bellied piranha. a swarm of piranha fish. relatively dangerous freshwater fish. pygocentrus nattereri - south

pirana piranha fish water amazon tropical dangerous freshwater aquatic animal wildlife fauna aggressive river one predator pygocentrus nature underwater carnivore killer aquarium green eye jaws danger bite colorful sharp wild taxidermy swimming fear teeth tropicalaquarium frightful sea fishes indoors blue serrasalmus nattereri terrifying mean red south detail side floating shot