Original subtitles

Wade: IN SOUTHERN AFRICA,

THERE ARE RUMORS OF A DEADLY FISH.

[ MOANING ]

IT LURKS UNSEEN IN THE EERIE WATERS OF THE OKAVANGO DELTA...

THERE ARE LARGE ANIMALS UNDER THE WATER

MAKING THESE REALLY SHAKE.

...A KILLER WITH SHARKLIKE TEETH.

THERE ARE STORIES OF IT HUNTING IN PACKS...

Janssen: THEY ARE KILLING MACHINES.

...FEEDING IN FRENZIES ON SCHOOLING FISH...

THIS IS JUST INCREDIBLE.

...AND EVEN ON DROWNING HUMANS.

IT'S THE MOST BRUTAL THING YOU'LL EVER WITNESS.

IT SOUNDS LIKE THE WORK OF GIANT SOUTH AMERICAN PIRANHAS.

BUT THERE'S NOTHING LIKE THAT HERE IN AFRICA.

[ REEL CRANKING ]

OR IS THERE?

MY NAME IS JEREMY WADE. FISH ON!

AND MY MISSION IS TO ENTER THIS MYSTERIOUS WORLD

TO TRACK DOWN AND CATCH THIS MURDEROUS RIVER MONSTER.

[ SINGING IN NATIVE LANGUAGE ]

I RECENTLY HEARD A STORY ABOUT A SMALL FERRY

THAT OVERTURNED ON A RIVER IN SOUTHERN AFRICA.

[ SINGING CONTINUES ]

THE BOAT WAS OLD AND OVERLOADED WITH CARGO AND PASSENGERS.

WHEN IT STARTED TAKING IN WATER,

THE CHILDREN PANICKED...

[ PEOPLE SCREAMING ]

...AND THE BOAT FLIPPED.

APPARENTLY, THERE WERE NO SURVIVORS...

AND RUMORS CIRCULATED THAT THE VICTIMS DIDN'T JUST DROWN.

THEY WERE ATTACKED.

WHEN THE BODIES WERE RECOVERED,

THEY WERE FOUND TO BE PARTIALLY EATEN.

[ MOANING ]

PEOPLE AT THE TIME SAID

THAT THE VICTIMS HAD BEEN EATEN BY FISH.

OFFICIAL ACCOUNTS, HOWEVER,

SAID IT COULDN'T HAVE BEEN FISH.

LARGER PREDATORS MUST HAVE BEEN RESPONSIBLE.

CROCODILES AND OTHER KILLERS LIVE HERE IN ABUNDANCE,

BUT THE LOCALS ARE CONVINCED

THAT THE SIZE AND NUMBER OF BITE MARKS

COULDN'T HAVE BEEN THE WORK OF THESE USUAL SUSPECTS.

SO COULD THOSE ORIGINAL ACCOUNTS HAVE BEEN CORRECT?

COULD THERE BE A PACK-HUNTING FISH,

SIMILAR TO A PIRANHA, LIVING IN SOUTHERN AFRICA?

IT SOUNDS HARD TO BELIEVE,

BUT I'VE HEARD EQUALLY FANTASTICAL STORIES IN THE PAST

THAT HAVE TURNED OUT TO BE TRUE...

LIKE A MAN SWALLOWED WHOLE BY A GIANT FISH...

A BUS CRASH WHERE PASSENGERS WERE DEVOURED BY PIRANHAS...

[ PEOPLE SCREAMING ]

...AND FISHERMEN HAVING THEIR GENITALS MUTILATED

BY AN UNDERWATER HUNTER.

SO EVEN THOUGH I'VE CAUGHT MY SHARE OF MONSTERS IN AFRICA,

I'VE NEVER COME ACROSS A PIRANHA-STYLE KILLER.

BUT I HAVE LEARNT

THAT FISHERMEN'S TALES SHOULDN'T BE IGNORED.

SO I'M OFF TO INVESTIGATE A RIVER SYSTEM

THAT'S SAID TO BE THE HOME OF THIS KILLER,

TO SEE IF I CAN FIGURE OUT WHAT IT IS AND THEN CATCH IT.

BUT I'VE NEVER BEEN IN THIS REGION BEFORE,

SO I'M NOT SURE WHAT TO EXPECT.

I'M AT THE OKAVANGO DELTA IN SOUTHERN AFRICA,

WHERE I'M HOPING TO COME FACE-TO-FACE

WITH THE RIVER MONSTER

THAT MUTILATED THE PEOPLE ON THAT FERRY.

THIS PLACE IS KNOWN AS THE JEWEL OF THE KALAHARI.

IT'S A MIRACULOUS OASIS OF LIFE

IN THE MIDST OF ONE OF THE WORLD'S HARSHEST DESERTS.

EACH YEAR, THE RAINS IN ANGOLA FLOW DOWN THROUGH NAMIBIA,

EVENTUALLY FLOODING NEARLY 6,000 SQUARE MILES OF LAND

WITH OVER 380 BILLION CUBIC FEET OF WATER,

CREATING THE OKAVANGO DELTA.

OVER A PERIOD OF MONTHS, IT SLOWLY RECEDES.

BUT THE WATER THAT REMAINS ATTRACTS LIFE FOR MILES AROUND.

IT'S ALSO THE FOCUS OF HUMAN ACTIVITY.

AND WHERE HUMANS AND ANIMALS ARE FORCED TOGETHER,

CONFLICT IS INEVITABLE.

[ MAN SCREAMS ]

OUT ON THE WATER FOR THE FIRST TIME,

IT'S UNFAMILIAR TERRITORY TO ME,

A CLAUSTROPHOBIC LABYRINTH OF CHANNELS.

I COULD EASILY LOSE MY WAY AROUND HERE.

I BEGIN MY INVESTIGATION

BY TRYING TO CONNECT WITH THE LOCALS

TO FIND OUT WHAT THEY KNOW

ABOUT THE RIVER'S DANGEROUS OCCUPANTS.

I STOP TO CHAT WITH A GROUP OF REED COLLECTORS,

AND THEY MENTION A FAMILIAR SELECTION OF SUSPECTS.

SO, IT'S THE CROCODILES AND HIPPOPOTAMUSES IN THE WATER?

YEAH, THEY'RE HERE.

YEAH, YEAH.

THIS IS REALLY -- YOU KNOW, IT'S THE SAME STORY

YOU GET IN LOTS OF OTHER PARTS OF AFRICA --

THE WATER IS DANGEROUS.

AND THE THING YOU JUST HEAR OVER AND OVER AGAIN --

IT'S CROCODILES, HIPPOPOTAMUSES.

[ HIPPOPOTAMUS GRUNTING ]

AS THESE TWO KILLERS ARE SO BRUTAL AND VISIBLE,

PEOPLE JUST ASSUME THEY ARE THE CULPRITS

IN EVERY UNEXPLAINED DEATH ON THE WATER.

BUT I THINK IT'S POSSIBLE

THERE IS A PACK-HUNTING KILLER FISH DOWN THERE,

RESPONSIBLE FOR SOME OF THESE BRUTAL DEATHS,

INCLUDING THE FERRY VICTIMS.

I HOOK UP WITH SOME FISHERMEN TO SEE WHAT THEY'RE CATCHING.

IT'S VERY CLEAR THIS IS A VERY RICH WATER.

LOTS OF THESE THINGS IN HERE -- TILAPIA.

THIS IS THE STAPLE FOOD SOURCE FOR SUB-SAHARAN AFRICA

IN TERMS OF FISH,

AND THERE ARE LOTS OF THEM.

THEY'RE NICE FISH, BUT -- NICE-LOOKING FISH

BUT ALSO VERY TASTY.

BUT I THINK I CAN BET

THAT IT'S NOT ONLY PEOPLE THAT ARE GOING TO BE ENJOYING THESE.

THERE'S GOING TO BE OTHER FISH IN HERE, AS WELL,

WITH TEETH, FEEDING ON THESE.

THIS WATER IS BOUND TO HAVE PREDATORS IN.

I ASK AROUND IF THERE'S ANYTHING

THAT FITS THE DESCRIPTION OF THE TOOTHY PACK HUNTER.

AND ONE OF THE STORIES I HEAR

IS OF A YOUNG MAN WHO WAS ATTACKED

WHILE WEARING A CRUCIFIX AROUND HIS NECK.

A PREDATOR IN THE WATER SPOTTED THE MOVING, SHINING OBJECT...

...AND WENT FOR IT.

[ CREATURE GROWLS ] [ SCREAMING ]

APPARENTLY, THE MAN'S CHEST WAS SLICED OPEN.

[ MOANING ]

THE LOCALS BELIEVE IT WAS THE JAWS OF A PREDATORY FISH

THAT INFLICTED THE DAMAGE.

I'M TOLD THERE'S AN ENGLISH-SPEAKING FISHERMAN

NAMED CLIFFORD WHO MAY HAVE MORE INFORMATION,

AS HE, TOO, WAS BITTEN BY A FISH IN THESE WATERS.

THE FISH WE GOT, I TRIED TO GRAB THE FISH,

BUT I HIT IT IN THE TIP WITH MY HAND,

AND IT CLOSED DOWN.

AND IS THIS THE MARK HERE?

YES.

WOW.

I HAD 14 STITCHES.

MY THUMB IS NO LONGER FUNCTIONING.

SO, WHAT IS THE NAME OF THIS FISH THAT BIT YOU?

UNGWESH.

UNGWESH? UM...

THIS IS THE THING WITH FISH NAMES.

THE REASON WE HAVE SCIENTIFIC NAMES

IS THAT EVERYBODY KNOWS WHAT EVERYBODY IS TALKING ABOUT.

THIS IS NOT A NAME I'VE HEARD BEFORE.

IT'S CLEARLY A PREDATOR. IT'S TOOTHY.

I'M ACTUALLY QUITE USED TO SEEING PIRANHA BITES

ON FISHERMEN IN THE AMAZON,

AND YOU'RE NORMALLY TALKING THERE SOMETHING SMALL --

SOMETHING MAYBE, AT THE MOST, AN INCH ACROSS.

THIS IS, WE'RE TALKING, 2 1/2, 3 INCHES ACROSS,

AND IT'S GOT A SORT OF --

ALMOST A SORT OF A TRIANGULAR PROFILE.

BUT TO INFLICT A WOUND LIKE THAT,

IT'S GOT TO HAVE VERY, VERY SHARP TEETH.

THIS IS A COUPLE OF YEARS AGO,

AND IT'S JUST LEFT A PERMANENT SCAR.

CAN YOU DESCRIBE THE FISH THAT DID THIS?

WHAT DOES IT LOOK LIKE?

WHAT IS THE MOUTH LIKE? WHAT IS THE BODY LIKE?

IT'S A LONG FISH WITH SHARP TEETH...

AND IT'S GOT STRIPES.

THE TEETH, THEY ARE CLOSE.

THEY INTERLOCK?

ARE THERE A LOT OF THEM IN THE WATER HERE?

IS IT SOMETHING YOU SEE VERY MUCH?

DURING THE MONTH OF JANUARY, FEBRUARY,

THE WATER IS CLEAR.

YOU SEE SCHOOLS OF THEM -- LOTS OF THEM.

SO, THE PICTURE THAT'S EMERGING --

IT'S NOT A SOLITARY HUNTER.

THIS IS SOMETHING THAT LIVES IN PACKS.

CLIFFORD DESCRIBED THE WAY THE TEETH WORK.

THEY INTERLOCK. THAT'S QUITE PIRANHALIKE.

THE FACT THAT THEY'RE IN PACKS, THAT'S ALSO QUITE PIRANHALIKE.

BUT THIS IS THE WRONG CONTINENT.

AND TO MY KNOWLEDGE,

THERE'S NOTHING PIRANHALIKE IN AFRICA.

BUT THIS ACTUALLY SOUNDS SOMETHING VERY SIMILAR,

BUT POSSIBLY SOMETHING EVEN MORE DRAMATIC,

BECAUSE THE FISH ARE BIGGER.

THE INDIVIDUALS CAN INFLICT MORE VICIOUS WOUNDS.

IF THIS UNGWESH IS A TOOTHY, PIRANHA-STYLE PACK KILLER,

THEN IT COULD BE THE MONSTER

AT THE HEART OF THAT FERRY INCIDENT.

I NEED TO FIGURE OUT WHAT IT IS,

AND TO DO THAT, I NEED TO CATCH ONE.

I'M AFTER A PREDATOR -- A MEAT-EATER.

SO I'VE GOT A PIECE OF STEAK HERE, QUITE BLOODY --

THE KIND OF THING THAT PIRANHAS WOULD TEAR TO SHREDS.

SO, QUITE A BIG HOOK.

AND BECAUSE WHAT I'M AFTER HAS PROBABLY GOT TEETH,

I'M NOT USING JUST LINE NEXT TO THE HOOK,

'CAUSE THAT WOULD JUST BE SLICED THROUGH.

THIS IS WIRE.

THIS IS LIKE 80-, 90-POUND BREAKING-STRAIN WIRE.

WITHIN SECONDS OF MY BAIT HITTING THE WATER,

IT'S GETTING SOME INTEREST.

[ REEL CRANKING ]

[ REEL CRANKING ]

[ GASPS ] YEAH!

OH! [ SIGHS ]

COULD I ALREADY HAVE HOOKED THE RIVER MONSTER OF THE OKAVANGO?

FISH ON!

I'M DEEP IN THE WATERY MAZE OF AFRICA'S OKAVANGO DELTA,

TRYING TO UNMASK THE IDENTITY OF AN AGGRESSIVE FISH

THE LOCALS CALL THE UNGWESH.

THIS IS A STRONG FISH.

A MEAT-EATER HAS TAKEN MY BAIT, AND IT'S PUTTING UP A FIGHT.

GLIMPSE OF THAT, GLIMPSE OF THAT.

I THINK IT'S SOME KIND OF CATFISH.

WOW.

AAH!

IT'S CLAMPING DOWN, IT'S CLAMPING DOWN.

IT'S A SHARPTOOTH CATFISH,

AND IT'S GOT SOME POWERFUL JAWS.

AH.

THAT'S THE HOOK OUT, WHICH IS NICE.

SO, THIS IS A VERY VORACIOUS, MEAT-EATING PREDATOR.

THERE ARE TEETH IN THERE.

HE DREW BLOOD ON MY HANDS.

BUT THEY ARE -- THEY'RE SMALL TEETH.

THESE COULD CERTAINLY MAKE SHORT WORK OF A HUMAN CORPSE.

BUT THE -- THE LOOK OF THAT CORPSE,

IT WOULD BE VERY DIFFERENT FROM A BODY THAT'S BEEN BITTEN.

SO THIS IS ACTUALLY NOT WHAT I'M AFTER.

AND THAT'S QUITE A THOUGHT.

THERE'S SOMETHING ELSE DOWN HERE

WHICH IS EVEN MORE FEARSOME THAN THIS.

I HEAD BACK TO THE VILLAGE.

I NEED SOME MORE LOCAL KNOWLEDGE

IF I'M GOING TO GET TO THE BOTTOM OF THIS MYSTERY.

PEOPLE TELL ME THE UNGWESH

IS DIFFICULT AND DANGEROUS TO CATCH.

BUT, ONCE AGAIN,

IT'S THE LARGE, VISIBLE PREDATORS THEY TALK ABOUT MOST.

AND WHEN YOU SEE INJURIES LIKE THESE,

YOU CAN UNDERSTAND WHY.

CAN YOU TELL ME WHAT IT WAS THAT HAPPENED TO YOU?

[ SPEAKING NATIVE LANGUAGE ]

SO, THESE ARE... INJURIES CAUSED BY CROCODILES.

BOTH MOTHER AND DAUGHTER WERE IN THE WATER,

COLLECTING WATER-LILY BULBS.

A CROCODILE UNDER THE WATER, UNSEEN,

GRABBED THE DAUGHTER'S LEFT HAND.

[ SCREAMING ]

[ SHOUTING IN NATIVE LANGUAGE ]

[ SPEAKING NATIVE LANGUAGE ]

DAUGHTER OBVIOUSLY CRIES OUT. [ SCREAMS ]

MOTHER COMES TO HELP.

AND AS SHE ATTACKED THE CROCODILE WITH THE SICKLE,

THE CROCODILE LET GO OF THE DAUGHTER

AND THEN WENT AFTER THE MOTHER.

[ SPEAKING NATIVE LANGUAGE ]

THE CROCODILE ACTUALLY HAD THE MOTHER'S ARM...

...AND WAS FEEDING ON THIS.

THEN, THE MOTHER WAS ABLE TO, WITH HER REMAINING ARM,

GATHER HER DAUGHTER AND TAKE HER WHERE THEY WERE SAFE.

I HAVE TO SAY THAT HEARING HOW DANGEROUS CROCODILES ARE

IS ONE THING,

BUT ACTUALLY SEEING THE EVIDENCE REALLY UNDERLINES,

FOR ME, JUST HOW POTENTIALLY DANGEROUS THESE WATERS ARE.

BUT THE VILLAGERS BELIEVE

THERE IS A MAN HERE WHO CAN HELP PROTECT THEM --

THE WITCH DOCTOR.

HE DOESN'T LOOK AS I EXPECTED,

BUT I'M TOLD HE'S A VERY POWERFUL HEALER

WITH AN EXTENSIVE KNOWLEDGE OF THE FISH IN THESE WATERS,

AS SOME OF THEM HAVE DARK POWERS

THAT AFFECT HIS MEDICINE.

HE'S LISTED FOUR FISH --

SOMETHING CALLED THE BUCKIBITU, NAIRU,

TUNI, WHICH I THINK IS ALSO KNOWN AS THE BARBEL

OR THE CATFISH,

AND THEN, HERE AGAIN, IS THIS FISH CALLED THE UNGWESH.

SO, DO DIFFERENT FISH HAVE DIFFERENT POWERS?

[ SPEAKING NATIVE LANGUAGE ]

SO, THE UNGWESH IS THE MOST POWERFUL FISH.

IF HE HAS EATEN THE UNGWESH,

HE SAYS, THE ILLNESS WILL MULTIPLY.

IT WILL BECOME MUCH STRONGER THAN IT WAS IN THE FIRST PLACE.

AND FOR THIS REASON, HE DOESN'T EAT UNGWESH.

HE DOESN'T EVEN TOUCH IT.

HE DOESN'T EVEN ALLOW IT INSIDE HIS COMPOUND.

I KNOW YOU DON'T TOUCH THEM.

BUT IS THERE ANY FISHERMAN IN THE VILLAGE --

ANYBODY HERE -- WHO COULD SHOW ME ONE?

[ SPEAKING NATIVE LANGUAGE ]

OKAY, SO, HE SAYS HIS DAUGHTER --

NOT IN HERE, BUT IF I GO OUTSIDE

HIS DAUGHTER HAS GOT SOMETHING THAT SHE CAN SHOW ME.

HIS DAUGHTER BRINGS ME WHAT SHE CALLS THE UNGWESH,

BUT IT'S NOT QUITE WHAT I WAS HOPING FOR.

SO, THESE ARE THE TEETH OF THE UNGWESH?

[ SPEAKING NATIVE LANGUAGE ]

I'LL TELL YOU WHAT STRUCK ME, FIRST OF ALL.

IT WASN'T AS MUCH THIS. IT WAS HIS REACTION.

HE VISIBLY BACKED AWAY. IT'S NOT JUST TALK.

THESE ARE DEFINITELY POWERFUL IN HIS BELIEF.

DIDN'T WANT TO BE ANYWHERE NEAR THEM.

THEY LOOK ALMOST SHARKLIKE, THESE TEETH.

THEY'VE SORT OF CRUMBLED A LITTLE BIT,

BUT I CAN TELL THAT THEY ARE VERY, VERY SHARP.

BUT I'M STILL NO NEARER VISUALIZING

WHAT THE ENTIRE CREATURE IS LIKE.

[ BABY CRYING IN DISTANCE ]

[ THUNDER CRASHES ]

IT'S A TANGIBLE CLUE, THOUGH.

AND THAT EVENING, AS I WATCH THE VILLAGERS PREPARE

FOR A BLESSING CEREMONY,

I FEEL I'M GETTING CLOSER TO REVEALING ITS IDENTITY.

[ DRUM PLAYS ]

[ SINGING IN NATIVE LANGUAGE ]

BUT WHEN THE WITCH DOCTOR REAPPEARS,

UNRECOGNIZABLE IN HIS CEREMONIAL ATTIRE,

I REALIZE I'M A LONG WAY FROM UNDERSTANDING THIS PLACE.

HE SEEMS TO EXIST ON THE CUSP OF ANOTHER WORLD.

AND WITHIN MINUTES, HE'S WORKED THE WOMEN INTO A FRENZY.

TALK ABOUT A TRANSFORMATION.

THE SERIOUS MAN I WAS TALKING TO

AND THEN, JUST SUDDENLY, THIS DANCING BALL OF ENERGY.

INCREDIBLE.

[ RHYTHMIC CLAPPING ]

[ PEOPLE WHOOPING ]

THE WITCH DOCTOR'S TRANSFORMATION

IS NOT THE ONLY SURPRISE OF THE EVENING.

THE LADIES BRING OUT THEIR BASKETS,

WHICH THEY USE FOR FISHING IN THE SHALLOWS.

BUT THEY ALSO ASK ME TO BRING OUT MY FISHING ROD.

DO I SIT HERE? OKAY.

SUDDENLY, I'M AT THE CENTER OF THEIR RITUAL.

THE WOMEN ARE ACTUALLY GETTING THEIR FISHING BASKETS BLESSED.

AND I'VE SORT OF BEEN SNUCK INTO THEIR NUMBER,

MAYBE TO GIVE ME A LITTLE BIT OF PROTECTION,

GOOD FORTUNE IN MY QUEST TO FIND OUT ABOUT THIS FISH,

THE UNGWESH.

THEY SEEM TO FEEL THAT IF I'M GOING AFTER THE UNGWESH,

THAT I'M GOING TO NEED ALL THE HELP I CAN GET.

THEN, AS QUICKLY AS IT STARTED, THE CEREMONY ENDS.

THE NEXT MORNING, I GO WITH THE WOMEN, BASKET FISHING.

I FIND IT'S OFTEN BY

INTEGRATING YOURSELF WITHIN THE COMMUNITY

THAT THE BEST INFORMATION COMES OUT.

WHILE I'M DOING THIS, LOOKING FOR FISH,

CONCENTRATING ON WHAT'S IN THE BASKET,

I'M VERY AWARE THAT AROUND ME, YOU'VE GOT WATER LILIES.

AND THIS IS EXACTLY

WHAT THE MOTHER AND DAUGHTER WERE COLLECTING

WHEN THEY WERE ATTACKED BY THE CROCODILE.

[ SCREAMS ]

OH, YEAH, YEAH, YEAH, YEAH!

YEAH, YEAH.

[ LAUGHTER ]

I HAVE TWO -- I HAVE TWO FISH. TWO FISH.

TWO FISH? YEAH.

[ CONVERSATIONS IN NATIVE LANGUAGE ]

[ WOMAN LAUGHS ]

THAT'S A RIVER MONSTER.

[ WOMAN LAUGHS ]

THE LADIES SCARE THE FISH OUT OF THE WEEDS.

BUT INSTEAD OF ESCAPING INTO OPEN WATER,

THERE ARE BASKETS WAITING FOR THEM.

I HAVE TO SAY, IT'S VERY NICE

TO GET BACK TO THE BASICS OF FISHING,

AND YOU'RE TALKING ABOUT JUST SIMPLE MATERIALS

AND A BIT OF HUMAN COOPERATION AND INGENUITY.

AND THERE WE ARE. THERE'S THE FISH.

UH, WHERE DO I -- AAH! AAH!

[ LAUGHTER ]

OH, IT NEARLY GOT AWAY. NEARLY GOT AWAY.

[ LAUGHTER ]

SO, IN THE -- IN THE BUCKETS?

YES.

THAT'S ACTUALLY AN IMPRESSIVE CATCH.

THEY'RE NOT BIG, BUT THERE ARE LOTS OF THEM.

LOTS OF FISH.

BUT THE WOMEN ARE SAYING THAT SOMETIMES AROUND HERE,

IT'S POSSIBLE TO FIND

LARGE CONCENTRATIONS OF BIG FISH -- VERY BIG FISH.

THEY SAY THAT DOESN'T HAPPEN VERY OFTEN.

IT'S HARD TO FIND,

BUT THE WAY THAT I CAN FIND THAT IS TO LOOK FOR THE BIRDS.

THE BIRDS -- THE WATER BIRDS -- WILL TELL ME WHERE THEY ARE.

THIS IS WHAT I WAS HOPING FOR --

A LITTLE PIECE OF INSIDE INFORMATION

WHICH COULD LEAD ME TO THE KILLER FISH

THAT PROWL THESE WATERS.

SO I HEAD OUT, SCANNING THE HORIZON FOR BIRDS.

AND AFTER A FEW HOURS, I FIND WHAT I'M LOOKING FOR.

THERE SEEMS TO BE SOME EXCITEMENT.

SOME OF THE BIRDS SEEM TO BE QUITE EXCITED

BEHIND THESE REEDS HERE.

SO WE'RE JUST GONNA SEE IF WE CAN GO AROUND

INTO THIS BIT OF A BACKWATER

AND JUST SEE WHAT'S CAUSING THAT.

THESE MUST BE THE WATER BIRDS THAT THE LADIES SPOKE OF,

BUT I CAN'T QUITE GET TO WHERE THEY ARE.

VERY FRUSTRATING.

YOU CAN'T SEE WHAT'S GOING ON, BUT EVERY NOW AND AGAIN,

THERE'S A LOUD, SORT OF SLAPPING, HOPPING SOUND.

AND, UH, I THINK THERE'S SOMETHING VERY DRAMATIC

GOING ON UNDER THE WATER, BUT I JUST CAN'T GET TO IT.

I TRY TO FORCE MY WAY INTO THE REEDS

TO SEE IF I CAN GLIMPSE WHAT'S CAUSING THIS COMMOTION.

BUBBLES IN THE WATER. THESE REEDS ARE SHAKING.

SOME QUITE LARGE ANIMAL IS UNDER THE WATER

MAKING THESE REEDS REALLY SHAKE.

COULD THIS BE A PACK OF RIVER MONSTERS AT WORK?

FIND OUT RIGHT AFTER THIS.

I'VE FOUGHT MY WAY INTO THE REEDS TO TRY AND SEE

WHAT'S CAUSING AN UNDERWATER COMMOTION.

I SAW THESE LILIES SHAKING,

AND THERE'S A FEW LEFTOVER BIRDS.

BUT THERE'S A SENSE THAT THE ACTION HAS JUST MOVED ON.

IT'S VERY FRUSTRATING. I GOT TO THE EDGE OF IT.

I SAW THE SHAKING WEEDS.

I COULDN'T REALLY SEE WHAT WAS RESPONSIBLE,

BUT THERE'S SOMETHING UNDER THE WATER.

IT JUST APPEARED LIKE A LARGE COLLECTION

OF PREDATORY CREATURES IN THE WATER.

BUT THEY MOVED.

THEY'RE VERY ELUSIVE, VERY MYSTERIOUS, VERY FRUSTRATING.

I REALLY WANT TO GET TO THE BOTTOM OF THIS.

UNFORTUNATELY, THE REEDS ARE TOO DENSE TO FOLLOW THE ACTION.

THEN, I REALIZE I'M NOT ALONE.

SO, THERE'S PEOPLE IN HERE, AS WELL.

THEY OBVIOUSLY KNOW WHAT'S GOING ON

OR CERTAINLY HAVE A BETTER IDEA THAN I DO.

BUT SHE'S JUST DISAPPEARED IN A VERY THIN CHANNEL THERE

BETWEEN THE WEEDS.

I DON'T THINK THERE'S ANY WAY, IN THIS, I'M GONNA GO AFTER HER.

BUT...

SOME SORT OF SECRET THINGS GOING ON HERE

THAT I WOULD REALLY LIKE TO KNOW MORE ABOUT.

THE NEXT DAY, I'M PRIVILEGED

TO JOIN A 71-YEAR-OLD VILLAGE ELDER NAMED DUBA.

HE'S SPENT HIS LIFE ON THESE WATERS.

I'M HOPING HE CAN HELP ME UNLOCK THE SECRETS

OF THIS REED-FILLED LABYRINTH

AND FIND THE KILLER FISH AT ITS HEART.

DUBA IS ONE OF THE LAST SAND RIVER BUSHMEN --

SOME OF THE MOST ANCIENT PEOPLE ON EARTH.

THEY HAVE FISHED THESE EERIE BACKWATERS FOR THOUSANDS,

IF NOT TENS OF THOUSANDS, OF YEARS

AND OWN THE TRADITIONAL FISHING RIGHTS,

SO IT'S ONLY WITH DUBA'S PERMISSION

THAT I'M ALLOWED TO BE HERE.

AND WITHOUT HIS HELP, I WOULD NEVER FIND MY WAY OUT.

DUBA, CAN YOU TELL ME

WHAT'S DIFFERENT ABOUT THIS PLACE?

WHAT HAPPENS HERE?

[ SPEAKING NATIVE LANGUAGE ]

SO, THE SIGNIFICANCE OF THIS PLACE

IS THAT, TRADITIONALLY, THIS IS WHERE THE DEAD WERE TAKEN...

AND THEY WERE BURIED UP TO THEIR NECKS.

THE RAINS WOULD COME.

THE RAINS WOULD THEN GO AWAY, AND THE BODY WOULD BE GONE.

AND THE PEOPLE WOULD BE TRANSFORMED INTO PAPYRUS PLANTS.

THEY BELIEVE THESE FLOATING SPIRIT PAPYRUS

PROTECT THE LAGOONS,

MOVING INDEPENDENTLY AGAINST THE CURRENT

TO CLOSE THE CHANNELS

AND TRAP INTRUDERS INSIDE THE LABYRINTH.

[ SPEAKING NATIVE LANGUAGE ]

SO, IF YOU COME HERE WITHOUT PERMISSION,

WHAT HAPPENS IS THAT

EITHER YOU'RE GOING TO FIND THE WAY INTO THE LAGOON BLOCKED

BY PAPYRUS -- YOU CAN'T GET IN, YOU'RE PHYSICALLY KEPT OUT.

IF YOU INSIST ON PUSHING YOUR WAY THROUGH,

THE PAPYRUS WILL CLOSE BEHIND YOU,

AND YOU'LL NEVER FIND YOUR WAY OUT.

ALL THAT WILL BE FOUND EVENTUALLY

IS JUST YOUR EMPTY CANOE.

DUBA, I'VE BEEN HEARING ABOUT A FISH CALLED THE UNGWESH.

IS THIS A PARTICULARLY DANGEROUS FISH?

[ SPEAKING NATIVE LANGUAGE ]

THE UNGWESH IS A FISH THAT IS -- IT'S VERY TOOTHY.

IT'S GOT TEETH A BIT LIKE A CROCODILE -- VERY SHARP.

FROM MY POINT OF VIEW,

FISHING FOR THEM, TRYING TO FIND THEM,

I'VE ESTABLISHED THAT THIS PLACE IS A SACRED PLACE,

A HAUNTED PLACE, IF YOU LIKE.

BUT WHAT THAT ALSO MEANS IS, IT'S GOT A DEGREE OF PROTECTION.

PEOPLE DON'T NORMALLY COME HERE.

SO I THINK, WHILE I'M HERE

AND WHILE I'M SORT OF AUTHORIZED TO BE HERE,

I COULD DO A LOT WORSE

THAN JUST PUT A LURE THROUGH THE WATER

AND SEE IF THERE IS ANYTHING DOWN THERE.

IN THIS LAGOON, I'M TRYING A SMALL FISHING LURE.

IF THE UNGWESH IS A PACK HUNTER LIKE THE PIRANHA,

THEN A DISTURBANCE NEAR THE SURFACE

IS WHAT IT MIGHT GO FOR.

OH, THERE'S A FISH, FISH, FISH, FISH, FISH. WHOA.

THIS FISH TOOK ALMOST UNDER THE -- OOPS --

UNDER THE ROD TIP --

AN INDICATION OF HOW VORACIOUS THE FISH ARE IN THIS WATER.

I MEAN, I'VE GOT ABOUT 4 FEET OF LINE THERE.

I WAS JUST ABOUT TO LIFT IT OUT OF THE WATER,

AND IT GRABBED IT.

AND I'M JUST LETTING IT TIRE OUT A BIT.

I MEAN, THE CHANCES ARE IT'S GOT TEETH IF IT WENT FOR THAT SPOON.

SO, I'VE GOT BARE FEET IN HERE.

I WANT IT A LITTLE BIT TIRED

BEFORE I TRY AND SWING IT IN THE BOAT.

AY.

BEAUTIFUL LITTLE FISH. VERY TOOTHY.

THIS IS ACTUALLY AN AFRICAN PIKE.

SORT OF MOTTLED GREEN.

THE COLOR IS ACTUALLY WRONG, I THINK,

FOR WHAT I'VE BEEN HEARING ABOUT.

BUT IF I JUST COMPARE THE TEETH

WITH WHAT I WAS GIVEN BY THE WITCH DOCTOR,

ACTUALLY THE TEETH ARE VERY DIFFERENT, VERY DIFFERENT.

SO, I MEAN, THEY'RE QUITE A NICE TOOTHY FISH TO CATCH, THIS,

BUT I THINK WE CAN RULE THIS OFF THE SUSPECTS LIST.

SO THE HUNT FOR THE MUTILATOR OF THE FERRY VICTIMS CONTINUES.

NICE-LOOKING FISH, BUT IT'S NOT THE ONE I'M AFTER.

I'M WORKING MY WAY THROUGH THE FOOD CHAIN,

BUT NOTHING YET MATCHES THE DESCRIPTION OF THE UNGWESH.

AS WE NEAR THE LAGOON'S EXIT,

I SPOT SOMETHING UNUSUAL IN THE WATER.

THERE'S AN OLD CANOE HERE,

JUST UPTURNED BY THE SIDE OF THE CANAL.

I'VE BEEN HEARING ALL THESE STORIES

ABOUT HOW THIS IS NOT A GOOD PLACE TO COME TO

IF YOU DON'T HAVE PERMISSION.

I HAVE TO ADMIT, IT IS QUITE A SPOOKY PLACE.

IT'S QUITE EASY TO DISMISS THOSE STORIES.

AND THEN WE COME ACROSS A CANOE WITH NO OCCUPANT.

JUST ADDS TO THAT GENERAL AIR OF SPOOKINESS.

YOU WONDER WHAT HAPPENED TO THE OWNER OF THIS CANOE.

WITH MY SUSPECT LIST NARROWING,

I HEAD OUT AGAIN INTO THE MAIN CHANNEL,

KEEPING MY EYE OUT FOR FLOCKS OF BIRDS.

I DECIDE TO TARGET A DIFFERENT PART OF THE WATER COLUMN

AS I SYSTEMATICALLY ZERO IN

ON THE MYSTERY FISH LOCALS CALL THE UNGWESH.

THIS IS QUITE A WEIGHTED, HEAVY LURE --

HEAVY HEAD TO IT, THERE.

THE IDEA OF THIS IS, IT GOES DOWN TO THE BOTTOM,

WHICH TENDS TO BE WHERE THE LARGER FISH MIGHT BE LYING.

IT'S GOT A VERY ENTICING, SORT OF WIGGLY ACTION.

AND IT'S JUST THE KIND OF THING

THAT'S GOING TO ENTICE A PREDATORY STRIKE.

LET IT HIT THE WATER AND LET IT SINK DOWN MAYBE 8 OR 10 FEET.

AND THEN JUST TWITCH IT.

OH! THAT WAS SOMETHING.

TWITCH. TWITCH.

IT'S GOT THESE TRAILING SORT OF TENDRILS,

AND IT'S GOT THIS RUBBERY BODY AND A LITTLE RATTLE, AS WELL.

I THINK, IF YOU'RE A PREDATOR, YOU SEE A MOVEMENT,

YOU BITE FIRST AND YOU ASK QUESTIONS LATER.

ALL RIGHT, LET IT SINK.

SINK, SINK, SINK.

TWITCH.

TWITCH.

TWITCH.

TWITCH.

OH, I THOUGHT I FELT SOMETHING THERE.

AND TWITCH.

[ GASPS ] AND AGAIN.

OH!

TWITCH.

OH!

OH! YEAH! YEAH, YEAH!

HEY!

WOW.

I THINK I'VE JUST SEEN WHAT THE UNGWESH IS.

Wade: OH, LOOK AT THAT! LOOK AT THAT!

HE GOT ABOUT 4 FEET OUT OF THE WATER.

I'M HOOKED INTO A PREDATOR IN AFRICA'S OKAVANGO DELTA.

THE LINE'S SOUNDING LIKE IT'S IN PAIN.

IT'S SLICING THE WATER.

COULD IT BE THE UNGWESH...

LONG, SILVERY, HORIZONTAL STRIPES.

...THE PACK-HUNTING KILLER FISH I'VE BEEN SEARCHING FOR?

AH.

I THINK THIS MIGHT ACTUALLY BE THE UNGWESH,

FROM EVERYTHING I'VE HEARD.

IT DEFINITELY FITS THE DESCRIPTION.

STREAMLINED FISH.

SILVERY COLOR, HORIZONTAL BLACK STRIPES,

AND UNMISTAKABLE, LARGE, SHARP, INTERLOCKING TEETH.

AND, WELL, I ACTUALLY RECOGNIZE THIS AS A TIGERFISH.

THIS DEFINITELY LOOKS LIKE

IT'S BEEN DOING A BIT OF HUNTING.

THAT BODY, ALTHOUGH ELONGATED, IS QUITE --

YOU KNOW, IT'S VERY FULL.

IT'S BEEN FEEDING.

AND THEN THOSE TEETH -- I MEAN, THAT IS --

YEAH, THAT IS THE TOOTH THE WITCH DOCTOR SHOWED ME.

I THINK WE'VE GOT A POSITIVE I.D. NOW ON THIS FISH, FOR SURE.

SO, I'VE MATCHED THE TEETH FROM THE WITCH DOCTOR

AND IDENTIFIED THE UNGWESH.

BUT IS IT REALLY A FISH THAT ATTACKS IN FRENZIED PACKS

LIKE THE PIRANHA?

I'VE CAUGHT A TIGERFISH BEFORE --

THE GOLIATH TIGERFISH -- AT THE CONGO.

THERE WE GO.

THAT FISH HAS THE SIZE TO BE A KILLER...

WHAT A FRESHWATER MONSTER THIS THING IS.

...BUT IT WORKS ALONE.

THE ONE I'M AFTER HUNTS IN PACKS

AND CAN POTENTIALLY BRING DOWN SEVERAL LARGE TARGETS AT ONCE.

[ PEOPLE SCREAMING ]

THE TYPE OF TIGERFISH I JUST CAUGHT

IS A RELATIVE OF THE PIRANHA,

BUT IT CAN GROW TO OVER 3 FEET LONG,

AND ITS AVERAGE WEIGHT

IS MORE THAN 10 TIMES THAT OF A RED-BELLIED PIRANHA.

SO, IMAGINE HORDES OF THESE TEARING AT YOUR FLESH...

[ PEOPLE SCREAMING ]

...A VORACIOUS PACK OF TEETH THAT, IF MY HUNCH IS RIGHT,

COULD EASILY HAVE DISPOSED OF THE FERRY VICTIMS.

TO FIND OUT MORE ABOUT THIS TYPE OF TIGERFISH,

I MEET UP WITH A MAN

WHO HAS YEARS OF EXPERIENCE CATCHING THEM --

A FISHING GUIDE NAMED YURI JANSSEN.

PEOPLE TALK A LOT ABOUT TIGERFISH BEING VERY AGGRESSIVE.

HOW DANGEROUS DO YOU THINK THEY ARE

TO PEOPLE IN THIS RIVER?

THE POTENTIAL IS THAT WE'RE DEALING WITH A SPECIES

THAT IS, WITHOUT A DOUBT,

THE MOST AGGRESSIVE FRESHWATER SPECIES IN AFRICA

AND POSSIBLY WORLDWIDE.

IT'S JUST SUCH AN AGGRESSIVE FISH...

...PARTICULARLY DURING THE FEEDING FRENZIES

ASSOCIATED WITH THE CATFISH RUN,

WHEN TIGERS GET TOGETHER AND SHOAL

AND ACTUALLY FEED AS A UNIT RATHER THAN INDIVIDUALLY.

THIS SOUNDS LIKE THE LEAD I'M AFTER --

A SPECTACULAR PHENOMENON THAT OCCURS

AT ONE SPECIFIC TIME OF THE YEAR HERE IN THE DELTA

THAT YURI BELIEVES INCITES THE TIGERFISH TO HUNT IN PACKS.

IT'S CALLED THE CATFISH OR BARBEL RUN,

AND THIS OCCURS

WHEN THOUSANDS OF CATFISH PREY ON MILLIONS OF BAITFISH.

THIS HUNT, IN TURN,

ATTRACTS PACKS OF TIGERFISH TO FEED IN A PREDATORY FRENZY.

MAYBE THIS IS WHAT WAS HAPPENING IN THE REEDS.

AS SOON AS THAT NOISE STARTS, THE TIGERS ARE THERE IN SECONDS.

THEY GO INTO A FEEDING FRENZY WITH THAT MOUTH OPEN,

AND THEN THEY JUST CHOMP.

YOU SEE BITS OF FISH BEING THROWN UP IN THE AIR.

IT'S THE MOST BRUTAL THING YOU'LL EVER WITNESS

FROM A FRESHWATER SPECIES.

TIGERS NATURALLY ARE ATTRACTED TO ANY ACTIVITY,

WHETHER IT BE A STRUGGLING ANIMAL

OR A STRUGGLING HUMAN BEING.

DO YOU HAVE ANY -- HAVE YOU HEARD ANY SPECIFIC STORIES

THAT ILLUSTRATE THAT?

THERE IS ONE THAT STANDS OUT...

AT ONE PARTICULAR INCIDENT, IN A RIVER IN SOUTH AFRICA.

AT THE HEIGHT OF SUMMER, AN OFF-DUTY GAME RANGER

DECIDED TO TAKE A QUICK DIP IN THE RIVER TO COOL OFF.

A RISKY DECISION, EVEN IF HE THOUGHT THE AREA WAS CROC-FREE.

BUT CROCODILES ARE NOT THE ONLY PREDATORS IN THIS WATER.

MY SEARCH FOR PROOF OF THE TIGERFISH'S DEADLY POTENTIAL

HAS LED ME TO THE STORY OF A HORRIFIC ATTACK.

HE WAS BRUTALLY MAULED ALL AROUND THE GROIN AREA.

THE NATURE OF THE WOUND

SUGGESTED IT WAS A LARGE TIGERFISH.

AAH! OH!

HE ALMOST BLED TO DEATH.

THAT JUST SHOWS THE FEROCITY OF THE TIGERFISH.

ATTRACTED TO ANY KIND OF MOVEMENT IN WATER,

AND ATTACKING THINGS THAT MAY NOT RESEMBLE THEIR PREY.

SO, ANOTHER EXAMPLE

OF A TIGERFISH ATTACKING A HUMAN IN OPEN WATER.

BUT IT'S STILL HUNTING ALONE.

HOWEVER, THESE ACCOUNTS OF THEM FEEDING IN FRENZIES

DURING THE CATFISH RUN

COULD BE THE PROOF I NEED THAT THEY DO WORK IN PACKS.

THE NEXT MORNING, I HEAD DEEPER INTO THE DELTA,

SCANNING THE WATER FOR THE BIRD ACTIVITY

THAT COULD BE THE SIGN OF TIGERFISH ON THE PROWL.

BUT FINDING A RUN IS NOT PROVING TO BE THAT EASY.

IT'S A NATURAL PHENOMENON THAT CAN APPEAR

AND THEN DISAPPEAR BACK INTO THE REEDS

WITH NO APPARENT WARNING.

AS I'M NOT FINDING ANYTHING AT WATER LEVEL,

I DECIDE TO SEARCH FOR THE PREDATORY FISH FROM ABOVE.

LOOKING DOWN ON THE MAZE OF THE OKAVANGO,

I REALIZE THAT I'M FINALLY BEGINNING

TO UNLOCK ITS SECRETS.

WHAT I'M LOOKING FOR IS CONCENTRATIONS OF BIRDS,

BECAUSE PEOPLE HAVE TOLD ME

THAT IS WHERE THE PREDATORS ARE GOING TO BE.

FLOCKS OF BIRDS TYPICALLY FEED ON THE BAITFISH

THAT TRIGGER THE RUN.

I'M COUNTING ON THEM TO LEAD ME TO THE ACTION.

YES, I CAN SEE THEM. I CAN SEE THE BIRDS.

THAT IS WHERE I'M GOING TO PUT MY LINE.

MY HOPE IS THAT, LIKE THE BIRDS, PACKS OF TIGERFISH

WILL BE GOING AFTER THE BARBEL-CATFISH RUN.

THIS WILL PROVE MY THEORY

THAT THESE TOOTHY KILLERS DO HUNT TOGETHER

AND COULD BE CAPABLE

OF MUTILATING A BOATLOAD OF PEOPLE.

WELL, HERE ARE THE BIRDS,

BUT THEY'RE NOT ACTUALLY DOING ANYTHING AT THE MOMENT.

IT'S LIKE THEY'RE WAITING FOR SOMETHING.

IT'S LIKE THEY CAN SENSE SOMETHING THAT I CAN'T.

IT'S ACTUALLY QUITE SPOOKY. SOMETHING IS GONNA HAPPEN.

IT'S NOT HAPPENING YET.

THEN, SEEMINGLY OUT OF NOWHERE, THE CATFISH START ARRIVING.

AN ARMY OF THEM SCHOOLING TOGETHER

TO HERD THOUSANDS OF BAITFISH OUT OF THE REEDS,

INTO OPEN WATER,

WHERE THE CATFISH CAN FEED ON THEM.

THIS IS THE RARE FRESHWATER SPECTACLE

I'VE BEEN HEARING ABOUT --

WHAT I'VE SPENT SO LONG SEARCHING FOR.

BUT I'M NOT HERE AS A SPECTATOR.

YEAH!

THERE ARE HUNDREDS, IF NOT THOUSANDS OF THESE.

THIS IS WHAT THE BARBEL RUN IS ALL ABOUT.

WHOA.

CATFISH -- LOTS OF THEM.

BUT THE CATFISH AREN'T WHAT I'M AFTER.

I'VE BEEN TOLD THAT ALL THIS COMMOTION

WILL DRAW IN THE SECOND WAVE OF PREDATORS --

THE TIGERFISH.

AND BEFORE LONG, I'M WITNESSING A REAL FEEDING FRENZY.

THIS IS JUST -- THIS IS JUST INCREDIBLE.

THE AMOUNT OF ACTIVITY IS JUST INCREDIBLE.

THIS IS A REAL PHENOMENON.

MY GOSH.

AH.

THERE ARE FISH THERE

JUST HOLDING THEIR OPEN MOUTHS OUT OF THE WATER,

PRESUMING JUST TREADING WATER WITH THEIR TAILS,

AND THEY'RE JUST WAITING.

AND THE BAITFISH ARE FLYING IN THE AIR.

SO, PRESUMABLY, THEY'RE JUST WAITING

FOR THE FISH TO LAND IN THEIR MOUTHS.

ABSOLUTELY INCREDIBLE.

THE WATER IS JUST SO FULL OF FISH

AND JUST IN YOUR EARS, AS WELL. THE SOUND --

IT'S LIKE THE WATER DOESN'T JUST LOOK LIKE IT'S BOILING,

IT SOUNDS LIKE IT.

I'VE JUST NEVER SEEN ANYTHING LIKE THIS BEFORE.

TO SEE SUCH A SIGHT IN FRESHWATER,

IT'S REALLY INCREDIBLE.

I NEED TO GET A BAIT BACK IN THE WATER,

INTO THE MIDDLE OF THIS CARNAGE,

TO FINALLY PROVE THAT TIGERFISH ARE HERE,

HUNTING IN PACKS.

FISH ON.

THIS IS WHAT I CAME HERE TO SEE.

LOOK AT THIS.

I'M AFTER TIGERFISH IN THE OKAVANGO DELTA,

TRYING TO PROVE THAT THESE FISH

ARE AFRICA'S OVERSIZED VERSION OF THE PACK-HUNTING PIRANHA.

LOOKS LIKE I'M FINALLY IN THE EYE OF THE STORM.

THIS IS NOT CARNAGE GOING ON BEHIND THE REEDS

OR IN SOME SORT OF MARSH WHERE I CAN'T SEE IT.

THIS IS RIGHT AT THE RIVER'S EDGE,

AND THE PREDATORS ARE JUST HAMMERING INTO THE BAITFISH.

MY LURE, WHEN IT GOES IN THERE, AS WELL,

IS GETTING THE SAME TREATMENT.

I'M HOOKING ONE TIGERFISH AFTER ANOTHER.

THIS IS THE PROOF I'M AFTER.

WELL, THIS IS THE FISH.

THIS IS THE FISH, AND THE EVIDENCE IS RIGHT BEHIND ME.

IT'S IN MY EARS.

I MEAN, JUST THE SOUND OF THE FEEDING FRENZY

IS GOING ON AS I HOLD THIS FISH.

SO THIS IS NOT JUST A SOLITARY HUNTER.

THERE IS A PACK OF THEM DOWN THERE,

FILLING THE AIR WITH THE SOUND

OF JUST FRENZIED PREDATORY ACTIVITY.

[ GRUNTS ]

PEOPLE THINK PIRANHAS ARE SCARY.

PIRANHAS ARE JUST A FEW INCHES,

YOU KNOW, MAYBE A POUND, TWO POUNDS.

BUT A FISH THIS SIZE, OPERATING IN A PACK --

PRETTY MONSTROUS THOUGHT.

AH, YEAH, YEAH. AH!

THE FACT IS, IF YOU GET A BAIT IN THE RIGHT PLACE,

JUST THESE THINGS, ONE AFTER THE OTHER,

WILL JUST PILE INTO IT.

AND I THINK, WITHOUT A DOUBT, THIS IS A VERY LIKELY CANDIDATE

FOR WHAT PUT PAID TO THOSE PEOPLE IN THE FERRY.

[ PEOPLE SCREAMING ]

SO, WE'RE NOT JUST TALKING A SOLITARY ANIMAL DOWN THERE.

WE ARE TALKING A PACK.

WE'RE ALMOST TALKING A SUPER ORGANISM.

YOU KNOW, THE BIOMASS OF THESE IN A SMALL VOLUME OF WATER

IS QUITE FRIGHTENING.

PIRANHAS, IN COMPARISON, LOOK QUITE PUNY.

WE'VE GOT A PACK OF THESE THINGS DOWN HERE.

I'VE HEARD FIRSTHAND ACCOUNTS OF THEIR RAW AGGRESSION.

I'VE SEEN THEIR BRUTAL HARDWARE.

AND BY CATCHING SO MANY IN QUICK SUCCESSION,

I'VE SHOWN THEY MOST DEFINITELY HUNT IN PACKS.

I'M LEFT IN NO DOUBT THAT A FRENZY OF THESE MOUTHS

COULD EASILY HAVE DISPOSED OF THE FERRY VICTIMS.

SO I THINK, BY ANY DEFINITION AT ALL,

THIS THING IS A REAL RIVER MONSTER.