Catch the 'blood-sucking monster' with vampire teeth in Hanoi

The grouper, the creature is likened to "blood-sucking monster" with medium-vampire teeth that trap a fisherman in Hanoi's fishing lake.

Recently, an angler while fishing in Hanoi fishing line suddenly caught a pretty big fish. However, what makes everyone excited and somewhat amazed is the image of a "blood-sucking monster" silently sucking blood on the fish. After removing the strange animal from the fish, the image of the animal's teeth made many people not startled.

According to the study, the fish that possesses this "death kiss" is a sea-bream , scientific name is Petromyzon marinus , possessing a long cylindrical body like eels and can grow up to 120cm. and weighs 2.3kg.

The fish sucking blood is still stuck on the fish that need to be caught in the lake in Hanoi.

Rocky grouper is a blood-sucking parasitic fish that has appeared more than 360 million years ago, they do not have jaws but have a round mouth like a disc, full of sharp teeth. This species usually lives on the Atlantic coast of Europe and North America, in the Western Mediterranean and the Great Lakes. Like salmon, seabass is a migratory species. Born on rivers, moving to the sea when they grow up, when they reach the breeding season, they will cross the water to return to the place where they cut the umbilical cord to lay eggs.

Rocky grouper is also known as vampire due to parasitic life, sucking blood and body fluids of other fish species. Adult fish bite into the body of the prey, sticking with their teeth and tongue, sucking the animal's blood until it is full. Many fish die after being sucked by bloodfish, but most cases continue to live. In terms of blood absorption, their mechanism is quite similar to that of mosquitoes. In the saliva of both species are equipped with anticoagulants to ensure that their "meal" does not clump.

Not only is "blood-sucking monster", this creature is also a formidable invader.

The number of uncontrolled rocky grouper can also harm other fish when they can devastate fish populations. On average, a rocky grouper can kill 40 other fish each year, so the grouper can be considered a harmful fish.

A native of the Atlantic Ocean and the Baltic Sea, the Mediterranean Mediterranean Sea and the Adriatic, sea grouper has found its way into the Great Lakes (USA and Canada) inside the mainland in the early years. the 20th century through man-made canals caused the amount of fish to be injured and died in this area in the 50s of the last century has exceeded the permitted level. Even the United States and Canada had to form a coalition to fight back, British authorities also had to worry about the invasion of this species when the number of one-meter long grouper with sharp teeth sharp reaches record levels on many rivers in the UK.

Victim of fish sucking blood in Hanoi fishing lake.

Although considered as a 'monster' under the water because of its appearance and parasitic lifestyle, it is a premium dish that often appears on the menu of ancient kings. Stone grouper was also a dish on the British Royal menu.

Sardine, blood-sucking monster has just been caught.

Appeared more than 360 million years ago, before the dinosaurs appeared, but the rocky grouper did not change much from that point until now, showing how this fish has a strong way of survival. Depending on the environment, the blood-sucking mudfish larvae can turn into males or females to adapt to food sources.

Research has shown that an individual sea lamprey can "eat " up to 18kg of fish during its life cycle. And they are not picky about food either. This fish attacks any creature, including humans, as long as they can bite into it.