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 nattereri mean red side detail shot fear teeth sea blue frightful floating indoors south terrifying taxidermy tropicalaquarium swimming fishes serrasalmus