1. Goliath Tigerfish
The Goliath Tigerfish is probably the scariest fish in the world. It lives in the Congo River Basin and grows to a length of 1.5 m (4.9 ft) and a weight of 50 kg (110 lb). It has 32 jagged razor-sharp teeth that are an inch long and is highly predatory, ambushing its prey. When it attacks its prey, the teeth slam down causing a clean, almost-surgical cut.
The Goliath Tigerfish is so vicious, it attacks and eats small crocodiles. It sometimes attacks humans too because it mistakes them for large fish. The locals call it a demon fish because they say an evil spirit enters the fish and makes it attack people.
The Anglerfish has a fleshy growth that protrudes from its head and it uses this as a lure to attract small fish it can prey on. Yes, that’s why its called an Anglerfish… This is a fish that goes fishing for other fish. It also has three thin tentacles that it wiggles around, making them look like food for other fish. Once the other fish touch the tentacle, it automatically triggers the massive jaws of the anglerfish and they are devoured whole. Angler fish are also able to stretch their jaws and stomachs to an enormous size, allowing it to swallow prey up to twice the size of it’s entire body.
3. Vandellia Cirrhosa
The Vandellia Cirrhosa is also known as the Toothpick Fish. It is tiny, translucent and scaleless which makes it nearly nearly impossible to see in the water. Its gills are covered with short, sharp spines.
The vandellia is a parasite. It swims into the gills of another fish fish and expands the spines to hold itself in place. Then it begins gnawing a hole in the victim’s gill and sucking the blood until the victim dies.
If you go swimming naked, the Vandellia can swim up your butt or up your… um… private parts… and cling on with its spines. It will start feeding on your blood and body tissue. If it manages to get up there, The vandellia is almost impossible to remove, except by chopping off your private parts.
You could also stick two plants up there, the Xagua and the Buitach apple, which will kill and dissolve the vandellia. However, you’ll probably be in so much pain that you’ll go into shock and die.
4. Piranha Fish
The Piranha has rows of razor-sharp teeth that are tightly packed and interlock with each other. Its teeth are perfectly designed to rapidly slice through meat. The Piranha has an insatiable appetite and is also very aggressive. If food is scarce, it will turn into a cannibal and devour its own kind.
5. Moray Eel
The Moray Eel has sharp backward-pointing teeth. It also has another set of teeth in its throat. When it is hunting prey, it launches these teeth, snatching the victim and pulling it down into its digestive system. It feeds on sea-dwelling creatures. However, if you get too close, it can be vicious. If it bites you, it can cause severe injuries because the bacteria coating its teeth will infect the wound.
6. Grenadier Fish
The grenadier fish is usually about 2 ft long and weighs close to 10 lbs. They have huge heads, large eyes and long tapering tails. They swim slowly over the sea bed, in search of prey or carcasses to eat.
7. Snakehead Fish
The Snakehead fish is between 2 and 3 ft long and weighs more than 15 pounds. It can come out of the water and survive on land for long periods of time. If you put him in a pond or a lake, he will eat every other living thing in there. When they run out of food, they just jump out of the lake and run off in search of someplace new. Along the way, they’ll also eat any mice, frogs, rats or birds they come across.
The blobfish is just a mass of jelly-like flesh with no muscles. It is lighter than water and can float above the sea floor without expending any energy or using up scarce oxygen to swim. It just sits there and waits for something edible to float by. The Blobfish is not dangerous at all and nobody ever sees them because they live at depths of up to 300 ft.
The Stonefish is a master of camouflage. It has warts all over its body that make it look like a big, crusty rock. It has a jaw that is angled upwards, so when small fish swim overhead, it can suck them into its mouth without moving. It is also the deadliest and most poisonous fish in the world. There is a row of thirteen venomous spines on its back. When one of its enemies swim overhead, the spines feel the pressure and shoot venom into victim. After a few weeks, the glands regenerate and recharge.
The Stonefish is not harmful unless you step on it or accidentally catch it, which is easy to do because it is so good at camouflaging itself. If it stings you, you will be in excruciating pain and a great deal of swelling develops rapidly causing your tissue to die. The depth of the penetration determines the severity of the symptoms which are; muscle weakness, temporary paralysis and shock and death if not treated. Wearing shoes won’t even protect you because the spines can easily pierce through your shoe.
The Viperfish has huge fang-like teeth. They are so big that they don’t fit in its mouth and curve all the way back to the its eyes. The Viperfish lurks in the darkest depths of the sea. It has a long dorsal spine which is tipped with a photophore (a light-producing organ). The prey is attracted by the flashing light while the viperfish hangs motionless in the water. It uses the lower teeth to spear its victim and then the rest of the teeth pull the prey into its stomach so it can devour them whole.
The fangtooth has the largest teeth of any fish proportionate to its body size. The Fangtooth is among the deepest-living fish in the sea, dwelling as far as three miles deep in the ocean. It stabs its prey with its fangs and devours them whole, much like a snake.
12. Wels Catfish
The Wels Catfish is one of the largest fish in the world. They grow to as much as 16 ft long, weigh as much as 300 KG and live as long as 50 years. The Wels Catfish has a huge mouth with small sharp teeth that can engulf large prey. It has long whisker-like barbels that allow it to feel in the dark. It waits at the bottom of rivers and lakes until it senses a victim. The Wels Catfish eats just about anthing – fish, frogs, rats and ducks. It has even been known to lunge out of the water and snap up birds. There are stories of people being attacked by a Wels Catfish and in Russia, they found human remains inside one of these creatures.