The world’s most dangerous fish

Despite all the scientific and technological advances that humanity has conquered over the past centuries, there are hundreds of places and beings that escape their understanding and knowledge. In this sense, oceans and rivers remain unexplored places, almost entirely, as well as a source of great intrigue for us terrestrial beings.

Likewise, its fauna continues to surprise us and unsettle us, as it is most often exotic not to say amazing.

However, in reference to the inhabitants of these worlds not everything is not all surprising, because in some cases the encounter with these beings can translate into the end of our lives, either because we end up being part of their food chain, or because we become victims of their defense methods, including poisons or substances of high degree of toxicity.

This time we will present three of the most dangerous fish, as well as their characteristics, habitats and preferences, in order to establish an inventory of only some of the immense dangers that lie at the bottom of sea and river areas. Then the trio of the most murderous and risky fish on the planet:

Snakehead fish

Named after the shape of its head, which acquires a similarity to a snake, due to a subsequent depression. They are also distinguished by a long dorsal fin, as well as by their huge mouth full of bright and sharp teeth.

It also has the characteristic feature of being able to breathe out of the water, thanks to a suprabranch organ and a forked ventral aorta that assign seudoanfib quality, which uses this fish to stay on land for at least four days, while searching for other sources of water that can serve as food, so it has come to invade other hasity other has been invaded from its original sites, located in Asia and Africa.

He is also recognized and feared as a voracious predator. With its nearly one hundred centimeters long and an average of six kilos in weight, the snakehead fish stands out for devouring almost any other type of fish. On land it similarly eats any small animal that crosses it, and even attacks on humans have been reported, for their appetite for meat is never satisfied.

The worst thing is that outside its habitat it does not have natural enemies that control its rapid reproduction, so it multiplies unimpeded in the sites it has invaded, becoming a real danger to the fish population and the human population.

Goliath Tiger Fish

Also freshwater and native to Africa, especially the Congo River, this fish is one of the greatest aquatic hazards on this continent. Male specimens can reach an eighty-centimeter in length, while females report up to seventy centimeters. As for the weight, specimens of up to fifty kilograms have been found.

With strong musculature, excellent eyesight, thirty-two sharp teeth up to an inch long and great rapid, it is one of the most efficient predators in its habitat, where it feeds on large fish, small crocodiles, and is said to have also attacked humans.

However, its hunting method isn´t known, as the sites it inhabits are difficult to access. The inhabitants and some experts have described it as a large piranha, which must be fished and handled with great care, as it risks being bitten.


Belonging to the kingdom of ocean waters, it inhabits the waters of the Pacific (especially those of Australia) and those of the Indian Ocean (especially in the Malay archipelago). Its name lives up to its shape, as it has an appearance that can easily be confused with a rock of the rocky hams where this fish normally develops.

It is also considered today to be the most poisonous fish on the planet, since the fifteen or sixteen fins that are distributed throughout its body, each has a gland that secretes poison, based on a powerful neurotoxin, equivalent to that which could provide a cobra.

When you receive the bite you feel an intense pain, which reaches its maximum expression within sixty minutes of being stung. Similarly, vomiting, headache, elevated blood pressure, cardiac arrhythmias, seizures, and sometimes the most vulnerable patients can go into a coma and have respiratory arrests, resulting in a person’s death. If the victim manages to survive, he has to keep the wound clean and without infection, which is difficult to heal.

Likewise this fish, which likes to live under the rocks in the coral formations, also has the quality of being able to survive out of the water for twenty-four hours, sometimes remaining on the shore of the beach waiting for the tide to return, being sometimes confused by bathers with a rock, and stepped on by mistake, both in the sand and in the water, resulting in incidents that can end the life of the one who encounters it.

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The world’s most dangerous fish
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Bibliography ► (September 11, 2019). The world’s most dangerous fish. Bogotá: E-Cultura Group. Recovered from