The piranha's greatest fears are: electric eels, spiny catfish, caimans, and egrets.

1, electric eel

Piranha most afraid of the animals on the electric eel, this creature is often found in the Amazon River Basin, which is a large fish, can be released in a very short period of time a powerful voltage, even crocodiles do not dare to mess with them easily, the electric eel touched the piranha, it will be directly discharge to resist each other. Once the electric eel discharges, all the surrounding area becomes a high-voltage electric zone, and the piranha will also be seriously injured.

2, spiny catfish

Spiny catfish is called the "Amazon killer", which can also be seen in their lethality is powerful, this creature is generally distributed in Brazil, South America, Peru, Colombia and other regions, spiny catfish have sharp spines, if the piranha stared at, they will quickly swim to the piranha. They will quickly swim to the bottom of the piranha's abdomen, if the piranha want to directly bite the spiny catfish, the other side will open the spines, so that the piranha have no way.

3, caiman

Caiman is the smallest crocodile species in a class of crocodiles, their average body length of 1, 2-1, 8 meters, the color is brown, black, the surface is also distributed with light-colored spots, the crocodile's mouth is particularly large, which is also full of sharp teeth, able to instantly eat the piranhas. So the piranha encountered caiman, only immediately escape, otherwise it will become a dish.

4, egrets

Egrets are very large, their feathers are white, mouth and legs black, and toes yellow, usually in the bay, estuaries, around the coast, the main food is a variety of small fish, which includes piranhas, so that piranhas are not as horrible as people think, they are also many days in nature. There are also many natural enemies in nature, not omnipotent.

Piranha's habits:

Piranha's upper and lower palate bites are so strong that it can bite through cowhide and even hard boards, and it can break steel fishing hooks with a single bite, so other fishes are certainly not its rivals.

The crocodile, which usually reigns supreme in the water, once encountered the piranha, will also be scared into a ball, flip its body to face the sky, turn its hard back down, and immediately float to the surface so that the piranha can't bite its belly and save its life.

The piranha's life is divided into group living and solitary living, group living often hundreds or thousands of them gathered together, the smallest 6 can also be a group, can use vision, smell and water vibration at the same time sensitive feeling to search for attack targets. However, it has poor eyesight and relies on its discus-like body shape to distinguish between similar species.

Piranhas have the guts to attack animals several times or even dozens of times larger than themselves, and they have a well-established "siege tactic". When they hunt, piranhas are always the first to bite their prey on the fatal part of the body.

such as the eyes or tail, so that it lost the ability to escape, and then groups of turns to attack, one after another, rushed forward to bite, and then get out of the way for the back of the fish to leave the position, quickly the target into zero, the speed of its incredible.