1. crocodile skin:
Crocodile eels can grow to 3 meters long. This kind of fish belongs to large fierce fish, which mainly lives in fresh water and occasionally enters salty fresh water. Its eggs are poisonous, and the internal organs of fish are also poisonous. At present, there is this kind of fish in China, which is extremely harmful.
2. Silurus glans:
The body of the giant salamander is very long and has no scales. They have a terrible mouth covered with rows of teeth like sandpaper. There are hundreds of them, and their body length can grow to 5 meters. This fish is very aggressive and rude.
3, giant bone tongue fish:
Adult dragons can reach 2 to 6 meters in length and 65,438+000 kilograms in weight. They are huge. They are one of the largest freshwater fish in the world, and they have strong brute force. Attacking with the tail can easily break the bones of adults and cause internal injuries.
4. Black piranha:
The black piranha has the bite force of Tyrannosaurus Rex, and the adult body length is about 30 to 42 cm. Aggressive, it is a representative species of water tiger. Because of its blood-red eyes and oppressive body shape, it is loved by many people.
5. Amazon catfish:
Amazon catfish is an extremely fierce freshwater fish, which feeds on other fish. However, with the increase of human fishing in recent years, it has endangered the survival of Amazon catfish, and their number is decreasing sharply.
6. Great white shark:
Great white shark is one of the fiercest sharks. They are very good at swimming, and the cruising speed is about 3.2 kilometers per hour. There has been a record of attacking ships and attacking humans. In order to prevent their harm, a "shark prevention Committee" was set up.
7. Bull shark:
Bull shark is a big shark. It is the only shark that can go deep into freshwater rivers and live in lakes, but it is also one of the most dangerous sharks to human beings. It preys on its prey very quickly and takes bony fish as its main food.
8. Skunk shark:
Ferret sharks are fierce and greedy, and they are powerful predators. Its record of attacking humans is second only to that of man-eating sharks. Generally, they may not seem aggressive when encountered in the ocean, but they are actually a great threat and need to be extra careful.
9. Great Blue Shark:
Great blue sharks live in the upper ocean. They are common on the sea. They prey on squid and other sharks. Their swimming is very agile and fierce, and it is very dangerous for human society to take the initiative to attack. Sometimes they prey on seabirds.
10, Nile perch:
Nile bass is one of the most influential 100 invasive species in the world. This carnivore is very fierce, but it is extremely important for aquaculture and is a very important food fish.