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THE RIVER MONSTER FISH

Meet the killer fish from River Monsters. See incredible pictures, find out what they're like, learn why some are considered maneaters and others are just misunderstood, and more!

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ALLIGATOR GAR
An ancient fish with an alligator-like head and a devilish reputation. Is the alligator gar a maneater or just misunderstood?

ARAPAIMA
This massive killer has been roaming the waters of the Amazon River since the Jurassic age.

BULL SHARK
Sharks only live in the ocean, right? Guess again. This killer can tolerate fresh water, allowing it to travel far up rivers.

CANDIRU CATFISH
The tiny Candiru catfish is the most feared fish in the Amazon River. Find out about its very nasty habits.

ELECTRIC EEL
At over 6 feet in length, the electric eel is one river monster that could quite literally give you a jolt if you come across it.

FRESHWATER SAWFISH
This freshwater giant, which can grow to 20 feet in length, thrashes its sawlike nose side to side to stun its prey

GIANT FRESHWATER STINGRAY
Capable of growing to 1,200 pounds and 16.5 feet in length, this may be the largest freshwater fish on the planet.

GIANT SNAKEHEAD
The giant snakehead is not only the largest member of the snakehead gang, but also the most violent.

GOLIATH TIGERFISH
Africa's answer to the piranha, the goliath tigerfish can grow to nearly 5 feet in length and sometimes eats crocodiles.

GOONCH CATFISH
An alleged maneater, the goonch catfish lives in the Great Kali River, where it can grow to the size of a person.

JAPANESE GIANT SALAMANDER
At almost 5 feet in length, this oversized amphibian catches its meals with a rapid sideways snap of the mouth.
KAMBA CATFISH
Very little is known about this bizarre fish, which can grow to 5 feet in length. Could it be the dreaded "Congo Killer"?

NEW ZEALAND LONGFIN EEL
This enormous eel, which can grow to over 6 feet in length, looks more like an Italian sub sandwich than a fish!

NILE PERCH
One of the world's 100 worst invasive species, this river monster can grow to 6 feet and weigh 500 pounds.

PIRAIBA CATFISH
The largest catfish in the Amazon River, the piraiba has a sordid reputation for biting off more than it can chew.

RED-BELLIED PACU
Cousin to the piranha, the red-bellied pacu knows how to use its sharp teeth to make its prey scream for mercy.

PIRANHA
Working in large packs, this tiny terror can strip away meat down to the bone in a matter of minutes.

SHORT-TAILED RIVER STINGRAY
This river stingray might look harmless, but it has a secret weapon: a venomous stinger.

VUNDU CATFISH
One of the longest freshwater fish in southern Africa, if not the heaviest, this fish can survive for long periods of time out of water.

WELS CATFISH
Hailing from Europe and Russia, the wels catfish has been accused of feasting on people as far back as the 15th century.

WOLF FISH
The wolf fish has a well-deserved bad reputation. Aggressive individuals are known to viciously attack humans.

WHITE STURGEON
The most primitive fish in North America, the white sturgeon has been around for at least 100 million years.

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