The Most Hazardous Fish in the World 

Most pufferfish have a toxin that makes them tasteless to other fish and may even be lethal to them.

Puffer Fish

Red lionfish, which were once restricted to the reefs of the Indo-Pacific, are now found in all warm oceans. The average size is about 1 foot, while the largest can reach a height of 15 inches.

 Red Lionfish

A little Amazonian catfish known as the "candiru," also known as the "penis fish," is infamous for allegedly getting into people's urethras when they urinate in the water.


The great white shark is the biggest predatory fish in the world. It doesn't chew its food because it has 300 teeth. Instead, it rips the prey into bite-sized pieces that it then fully eats.

Great White Shark

These slim, aggressive bony fish boast diverse colors and patterns. Certain types are dubbed 'painted eels' due to their vibrant hues. 

Moray Eel

Due to their aggressive behavior when caught, their extreme predatory tendencies, or their unusual appearance, certain fish are referred to as "tigerfish."


More than 60 predatory fish species are known as piranhas and can be found in South American rivers and lakes under the names caribe or piraya. They have an unjustified reputation for violence despite having razor-sharp teeth.


The family Synanceiidae and the genus Synanceia include a number of poisonous marine fish species that are only found in the shallow waters of the tropical Indo-Pacific.


The Atlantic manta features small teeth, eyes, and side-head spiracles. Its large pectoral fins split at the head, forming two forward-bending cephalic fins. 

Atlantic Manta

Three South American knifefish species in the Electrophorus genus, termed 'electric eels,' can immobilize prey, often other fish, using potent electric shocks. 

Electric Eel