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NARRATOR: Around
the world, crocodiles and
alligators are on the move,
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Downloaded from
YTS.MX
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heading out to sea and
deep into shark territory.
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Official YIFY movies site:
YTS.MX
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From mysterious
severed heads.
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NEALE: You can see
where the shark's
actually bitten it.
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NARRATOR: To ambush attacks.
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MIKE: Oh man. This
is incredible.
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NARRATOR: What happens
when two of the deadliest
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predators on the planet,
go head-to-head?
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The Everglades, Florida,
a vast tropical wetland,
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crisscrossed by a
network of swamps,
channels and rivers.
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And an unlikely
mecca for sharks.
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MIKE: When you think about
the Everglades, you don't
really think about sharks,
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but every year we get
adults of Bull sharks, Lemon
sharks, and Blacktip sharks,
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coming here to have their
young, because it's such
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a great place for those
baby sharks to grow up.
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NARRATOR: Dr. Mike
Heithaus has been studying
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the predators here
for almost 20 years.
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He discovered young sharks
can spend the first four
years of their lives
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hunting for small fish in
the web of mangrove roots
that line these waterways.
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MIKE: As the tide
goes down and there's
less space to hide,
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those fish have to
come into the channel
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and that's where the
sharks have a really good
chance of catching them.
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But, they're not the
only predators in town.
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NARRATOR: Alligators also
stalk these mangroves.
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Able to hold their breath for
over 30 minutes, they move
silently through the water,
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barely creating a ripple.
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Feeding on everything from
fish to small mammals.
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But do they also have
a taste for sharks?
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In recent years,
members of the public
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have captured glimpses
of shark gator clashes,
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in the brackish borderlands
that separate Florida's
fresh and saltwater systems.
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MIKE: We usually think
of sharks as saltwater
creatures and alligators
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as freshwater creatures and
they should never interact,
but it's not that simple.
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These sharks can come
up and live in almost
entirely fresh water
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and alligators can survive
where there's a fair bit
of salt in the water.
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My hunch is that these
animals run into each other
more often than we'd think.
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Are they competitors or
this predator versus prey?
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And who's the predator?
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NARRATOR: As dusk falls,
the team prepares
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for a groundbreaking
tagging operation.
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Their mission for the
first time ever,
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to put cameras on the
backs of sharks and gators
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in the suspected
predator battleground.
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As a thermal drone helps
looks for gators from above.
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MIKE: Jack, what you
got? Point it directly
at one, yeah.
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NARRATOR: The team begins
to explore a series of
narrow channels
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that carve through
the shark nursery.
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Gators are easier
to spot at night.
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Their eyes contain guanine
crystals which reflect
light back off the retina,
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that gives them the
effects of night vision.
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But under flashlight,
their eyes glow bright red.
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HUNTER: There's one, there's
one. Up on the left, left.
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MIKE: That's a big
one. Oh, he's down.
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See him?
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Oh, I think I got it!
Yes, yes! Cut the
ropes, cut the ropes.
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NARRATOR: As the team
wrestles the six-foot
gator alongside the boat,
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they need to be careful.
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Alligators are armed
with up to 80 teeth.
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MIKE: Close that
now, please. Just
close it a bit.
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NARRATOR: With a
bite force of over 2000
pounds per square inch,
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their jaws are nearly twice
as powerful as a Bull shark.
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MIKE: There, perfect.
Very nice.
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So, the impressive thing
about alligator jaws
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is they've got tons of
force to close 'em,
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but not a lot to open
'em, so five or six wraps
of this tape
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and it will not be able
to open those jaws,
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which makes it safer
for the alligator and
definitely us.
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NARRATOR: As the team
drags 150 pounds of angry
alligator onto the boat.
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There's a shocking
discovery.
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MIKE: Oh, look at
that! Look at his tail
or lack thereof.
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NARRATOR: He's missing
over a foot of tail.
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Has this potential shark
hunter, become shark prey?
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Male alligators are
highly territorial and
regularly clash.
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They can lose limbs
and tails to these
violent attacks.
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But sharks are more than
capable of inflicting
similar wounds.
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The team decides on a name.
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HUNTER: I think Stumpy.
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MIKE: Stumpy. He looks
pretty fat and happy.
HUNTER: Yeah.
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MIKE: Not having any
trouble getting dinner.
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NARRATOR: Next, they
ready the state-of-the-art
camera system, Gator Cam.
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Armed with depth,
accelerometer, GPS and
temperature sensors.
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For the next 24 hours,
it will record every
move Stumpy make.
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MIKE: That looks pretty good.
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NARRATOR: If he has
a run in with a shark, it
will be caught on camera.
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MIKE: Cool?
HUNTER: Yep.
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MIKE: Clear.
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Yes! Yes! Woo!
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HUNTER: Yeah!
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MIKE: Yes!
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NARRATOR: For the
first time ever, we're
riding on the back
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of an alligator as it moves
through the Everglades.
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Hugging the edge of
the mangroves, Stumpy
moves north,
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just beneath the surface,
at a steady speed of two
miles per hour.
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With pressure sensitive cells
around his jaw that detect
the slightest movement,
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he's perfectly designed to
hunt in these murky waters.
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But how do gators like
Stumpy, with a burst speed
of just 20 miles per hour,
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catch faster and
more agile sharks?
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Footage captured by a
member of the public
in South Carolina,
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provides an important clue.
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FEMALE: He is not playing.
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MIKE: So, this victim
is a Bonnethead shark,
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you can tell right away
from the shape of the head,
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and they are a member
of the Hammerhead family
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and, you know, from
the size of it,
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you could say that's
probably a three and a half
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or four foot long shark,
so that's an adult.
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Bonnetheads are one of
the species that we
would expect to run
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into alligators
fairly often.
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They live in shallow water,
sometimes close to mangroves
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and also where it's
really murky.
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But they're not an
easy meal for a gator,
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having that head helps them
be super maneuverable, they
can turn on a dime.
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An alligator is not gonna
be able to chase down
and catch a Bonnethead,
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but if that gator is lying
motionless on the bottom
and the shark swims along,
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a lightning-fast strike
and the gator gets a meal.
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NARRATOR: Most of the
victims photographed
by the public
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were struck from
below on the abdomen,
they were ambushed.
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MIKE: You could see that
these gators are able
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to catch sharks that
are three and a half,
four feet long
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or even a bit bigger, I
mean, look at the size
of that nurse shark,
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relative to that alligator.
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These are smash and grab
killers and evolution
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has honed those techniques
over millions of years.
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But what happens when they
run into a much bigger shark?
Who comes out on top?
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REPORTER: Alligators had
people scurrying for sand
today in Collier County.
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FWC officers told people,
"Get out of the water."
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NARRATOR: In recent years,
there have been growing
reports of America's
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gators entering the ocean.
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One was even spotted circling
an offshore oil platform,
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some 40 miles from the
Louisiana mainland.
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Like most crocodilians,
alligators are
freshwater creatures,
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if they spend too
much time in salt water
they dehydrate and die.
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So why are they
heading out to sea and
how are they doing it?
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MIKE: The good news for
most alligators is that
they're fairly big,
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so they can go out to
the ocean, slowly take
salt into their body,
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it's a bit stressful,
but then they can move
back up to freshwater
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and kind of flush their
bodies out and reset.
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So, some of the alligators
we watch are commuters,
they'll go out to the ocean,
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then they'll come back.
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Now if you're an
alligator why would you
go to all that stress?
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It's pretty simple, food.
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When you look at these
coastal systems, there's
just a ton of life,
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here in South Florida
that's especially true.
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The further downstream
you move and out into
those coastal oceans,
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there's a lot more food
than up at the rivers.
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NARRATOR: But out at sea,
it's not just dehydration the
gators need to worry about.
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The coast around Florida
is home to some of the
biggest sharks on Earth.
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Bulls, Hammerheads, Tigers
and even White sharks all
patrol this rich coastline.
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So, what happens when a big
gator and a big shark clash?
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The discovery of a severed
croc head in South Africa
could hold the answer.
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Saint Lucia beach,
South Africa, 2013.
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As Neale and Brigitte
Cary-Smith take their
daily walk along the beach,
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they spot a strange
shape on the shoreline.
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NEALE: At first, we
thought it was a log
because a lot of
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debris floats down
the estuary which
runs into the sea.
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But about 30 meters
away, I realized that
it was a crocodile head.
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NARRATOR: Turning
their camera on, they
carefully approach.
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NEALE: Look how
big that thing is.
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As we got closer, we
realized just how big
this head was.
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It was absolutely enormous.
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BRIGITTE: Just come stand
closer, my darling, just
so people can see the size.
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Put your hand on its head.
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It's estimated to be in
the region of about a
120, uh, pounds or so.
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So, if that was the size of
the head, imagine what the
size of the crocodile was.
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It was just very exciting,
and we just realized
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we had come across
something quite special.
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NARRATOR: Like their alligator
cousin, Nile crocodiles
are freshwater predators.
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More at home ambushing
wildebeest, than moving
through the waves.
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So, what was this croc
doing out in the ocean?
And what killed it?
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NEALE: The more I inspected
the head, the more I saw
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that there were teeth
marks on the side of it.
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BRIGITTE: And being a
deep-sea fisherman,
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he's sorts of quite
knowledgeable about
that kind of thing
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and he said to me, "That's
definitely a shark cut."
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Something must have
happened, some drama
unfolded here.
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NEALE: You can see
where the shark's
actually bitten it.
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There's no doubt in my
mind whatsoever that
that was a shark
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that had bitten that
crocodile, none whatsoever.
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NARRATOR: The wild waters
of South Africa are
world famous for sharks.
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Tigers, Bulls, Bronze Whalers
and White sharks all patrol
Saint Lucia's shoreline.
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But could one of them
really have taken on
the huge Nile crocodile?
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Mike Heithaus is a
world leading expert in
marine predators.
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He's convinced sharks,
crocs and gators
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could be clashing far
more regularly than
we ever realized.
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MIKE: Looking from the
size of this head,
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this was a big croc, I mean
probably over 10 feet long
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and it raises a lot
of mysteries like what
was it doing out at sea?
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And how did it end
up a head on a beach?
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This is a map showing where
that severed head was found,
and when we zoom in here,
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what you can is that it
wasn't too far away from two
really major river systems.
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So, it's possible that
the crocodile died
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in the river system and
the head floated out
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or it could have come
into these coastal
waters to feed
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because those are
really rich waters.
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Now, there are White sharks
in this part of the world,
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but White sharks don't
tend to be in those super
shallow turbid waters
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where you might
find crocs and gators,
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00:14:54,240 --> 00:14:58,480
but it could also be a
really big Tiger shark
or a Bull shark.
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And the Bull sharks in
this part of the world do
get really, really big.
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They're one of the few
species of sharks that will
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tangle with animals close
to their own body size.
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So yeah, if any
shark's gonna go after
a bigger crocodile,
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Bull sharks are
definitely on that list
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00:15:22,120 --> 00:15:25,720
and those big Bull
sharks do go up into
these river systems.
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00:15:27,920 --> 00:15:30,960
NARRATOR: Just as at
home in freshwater
as salt water,
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Bull sharks have a
unique adaptation
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in their kidneys and livers
which allow them to thrive
in both environments.
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00:15:39,120 --> 00:15:41,760
MIKE: They're famous
for being in turbid
murky waters
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00:15:41,840 --> 00:15:44,480
and that suite of sensory
systems they have
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helps them zero
in on their prey.
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00:15:48,240 --> 00:15:52,200
NARRATOR: But could
they really take down a
huge Nile croc?
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00:15:54,080 --> 00:15:57,360
MIKE: Bull sharks when they
get really big do have the
teeth to get through it,
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00:15:57,440 --> 00:15:59,880
but it might be a pretty
big effort, you know,
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00:15:59,960 --> 00:16:02,200
and that's one thing when
you look at that head,
217
00:16:02,280 --> 00:16:05,880
if a Bull shark had
done that and the
croc was struggling,
218
00:16:05,960 --> 00:16:08,800
I would have expected a lot
more slashes and cuts,
219
00:16:08,880 --> 00:16:10,720
it wouldn't be a
clean bite through,
220
00:16:10,800 --> 00:16:14,400
they would not be able
to get through that
skin just in one bite.
221
00:16:16,400 --> 00:16:22,080
Tiger sharks are really
different predators, their
teeth are curved and serrated,
222
00:16:22,160 --> 00:16:23,680
they are built for cutting.
223
00:16:25,200 --> 00:16:27,280
One of their favorite
foods is sea turtles
224
00:16:27,360 --> 00:16:29,120
and they can cut
straight through the
shell of a turtle.
225
00:16:32,200 --> 00:16:34,760
You know, they've got
this reputation of being
the garbage cans
226
00:16:34,840 --> 00:16:38,680
of the sea and I guess
it's fairly well earned,
227
00:16:38,760 --> 00:16:41,400
I mean, you know, they are
the consummate scavenger,
228
00:16:41,480 --> 00:16:43,320
but in the areas where
there's lots of prey,
229
00:16:43,400 --> 00:16:46,200
they can also be
impressive predators.
230
00:16:46,280 --> 00:16:48,520
They can eat big prey,
they can cut through
231
00:16:48,600 --> 00:16:50,840
something tough like the
hide of an alligator,
232
00:16:50,920 --> 00:16:54,760
so could a Tiger shark eat
an alligator or crocodile?
233
00:16:54,840 --> 00:16:57,680
If they ran into
one, yes, they could.
234
00:16:58,880 --> 00:17:05,640
But, without that severed
head here in front of me, it's
impossible to say if sharks
235
00:17:05,720 --> 00:17:08,160
removed the head
from that crocodile.
236
00:17:08,240 --> 00:17:09,560
Was it poached?
237
00:17:09,640 --> 00:17:12,080
Did this croc die and
then something eat it?
238
00:17:12,160 --> 00:17:15,720
Big boat propellor, there
are lots of things that
could have happened here.
239
00:17:15,800 --> 00:17:18,000
This raises a lot more
questions than answers.
240
00:17:21,640 --> 00:17:24,080
NARRATOR: Four years later,
Saint Lucia estuary
241
00:17:24,160 --> 00:17:27,080
provides the backdrop
for another even more
242
00:17:27,160 --> 00:17:30,040
dramatic shark
croc confrontation.
243
00:17:31,280 --> 00:17:33,360
CASPER: The shark is just
in front of the crocodile.
244
00:17:40,920 --> 00:17:42,080
Did you see that?
245
00:17:42,160 --> 00:17:44,360
NARRATOR: Wildlife guide,
Casper Badenhorst,
246
00:17:44,440 --> 00:17:47,880
is birdwatching along
South Africa's St.
Lucia river mouth
247
00:17:47,960 --> 00:17:50,200
when he spots
something strange
in the water.
248
00:17:53,120 --> 00:17:56,760
CASPER: It was a
perfect day, it was no
wind, it was quiet,
249
00:17:56,840 --> 00:18:01,480
the water was flat and
that's when I noticed
something different.
250
00:18:01,560 --> 00:18:04,560
I start seeing this shark
fin and getting bigger
251
00:18:04,640 --> 00:18:06,440
and coming out of the
water and eventually
252
00:18:06,520 --> 00:18:11,680
the tail of the shark
and I knew this can be
nothing else than a shark.
253
00:18:14,000 --> 00:18:16,760
NARRATOR: Grabbing
his camera, Casper
begins filming.
254
00:18:18,360 --> 00:18:21,680
CASPER: And as I
videoed the shark, from
the corner of my eye,
255
00:18:21,760 --> 00:18:25,600
I was starting to see
a crocodile swimming
towards the shark.
256
00:18:25,960 --> 00:18:31,160
A crocodile. A crocodile
is going to the shark.
257
00:18:31,240 --> 00:18:34,360
The crocodile was twice
the length of the shark.
258
00:18:34,440 --> 00:18:39,280
You could see his aim
was to get the shark
and to take it down.
259
00:18:39,360 --> 00:18:42,760
(inaudible)
260
00:18:42,840 --> 00:18:44,920
The crocodile was
edging closer.
261
00:18:46,280 --> 00:18:48,120
The shark is just in
front of the crocodile.
262
00:18:54,640 --> 00:18:56,920
There was a big splash
and for a few seconds
we couldn't see,
263
00:18:57,000 --> 00:19:01,360
you know, what happened.
The shark went under.
264
00:19:01,440 --> 00:19:06,200
But then a few seconds
later, the shark emerged
and just keep on swimming.
265
00:19:08,600 --> 00:19:11,800
This crocodile was clearly
going for the shark,
266
00:19:11,880 --> 00:19:17,440
going to have as his next
meal and so the shark was
lucky to get away.
267
00:19:19,560 --> 00:19:21,680
MIKE: Oh man, this
is incredible,
268
00:19:21,760 --> 00:19:24,360
I mean, you just don't
see footage like this.
269
00:19:24,440 --> 00:19:29,600
You can see by the way
the crocodile is
shifting its body,
270
00:19:29,680 --> 00:19:32,800
it's aware of that shark
from pretty far away,
271
00:19:32,880 --> 00:19:34,920
and even though
it's aware of it,
272
00:19:35,000 --> 00:19:36,640
it's not really
starting to chase it,
273
00:19:36,720 --> 00:19:39,200
it's just slowly kind
of turning its body
274
00:19:39,280 --> 00:19:42,960
and moving to be on an
interception course.
275
00:19:43,040 --> 00:19:45,280
Then it waits until
it's really close and
it makes that last
276
00:19:45,360 --> 00:19:51,720
super powered kind of
lunge swim to try to
get the shark.
277
00:19:53,720 --> 00:19:57,080
That's a predator
trying to get a meal.
278
00:19:57,160 --> 00:20:00,400
The shark doesn't look
that much smaller than
the crocodile
279
00:20:00,480 --> 00:20:02,320
and so you'd think
they'd be fairly
280
00:20:02,400 --> 00:20:05,760
evenly matched, but the
crocodile just doesn't
care at all and, I mean,
281
00:20:05,840 --> 00:20:10,160
if you think about crocodiles,
they are really good at
getting big prey, I mean,
282
00:20:10,240 --> 00:20:13,800
zebra, wildebeest,
they don't care that
it's a shark.
283
00:20:13,880 --> 00:20:15,440
So, you know, this starts
to ask that question,
284
00:20:15,520 --> 00:20:18,080
what happens when they're
more evenly matched?
285
00:20:18,160 --> 00:20:21,720
If the crocodile is
in position, it's
gonna have a shot.
286
00:20:26,240 --> 00:20:29,800
NARRATOR: Back in
the Everglades, the
investigation
287
00:20:29,880 --> 00:20:34,040
into the suspected
shark gator
battleground heats up.
288
00:20:35,920 --> 00:20:37,320
MIKE: Clear!
289
00:20:37,400 --> 00:20:39,680
NARRATOR: With the camera
tag successfully deployed
290
00:20:39,760 --> 00:20:42,920
on a big adult male
gator called Stumpy,
291
00:20:43,000 --> 00:20:44,760
MIKE: Yes! Yes!
292
00:20:44,840 --> 00:20:48,040
NARRATOR: the team's
attention now turns to sharks.
293
00:20:49,280 --> 00:20:52,520
Setting a series of baited
lines across the bay,
294
00:20:52,600 --> 00:20:56,000
it's not long before they
get their first bite.
295
00:20:56,080 --> 00:20:57,000
MIKE: Hey shark.
296
00:21:01,440 --> 00:21:06,320
That is bite size
for a big gator.
297
00:21:06,400 --> 00:21:10,720
NARRATOR: It's a Bull
shark and at four feet
long, a juvenile.
298
00:21:17,840 --> 00:21:20,920
A miniature camera tag
prepped, within minutes the
299
00:21:21,000 --> 00:21:24,280
shark is released back
into the battle zone.
300
00:21:25,640 --> 00:21:27,280
MIKE: Yes!
MAN: Woo!
301
00:21:27,360 --> 00:21:28,880
MIKE: Good job.
MAN: Good work.
302
00:21:28,960 --> 00:21:30,560
MIKE: I mean that was
amazing, you know,
303
00:21:30,640 --> 00:21:32,920
for a shark in the trip and
it was the perfect size
304
00:21:33,000 --> 00:21:35,280
for the camera and that's
a really cool size
305
00:21:35,360 --> 00:21:38,040
of Bull shark in this area
because it's small enough
306
00:21:38,120 --> 00:21:40,880
that it could get eaten
by a really big gator,
307
00:21:40,960 --> 00:21:44,720
but it's big enough that
baby gators could be on the
menu for that.
308
00:21:44,800 --> 00:21:46,560
Oh, aren't they cute?
309
00:21:46,640 --> 00:21:50,080
NARRATOR: Over the
next few hours, five
more Bulls are caught,
310
00:21:50,160 --> 00:21:54,920
and tiny acoustic transmitters
inserted inside their bodies.
311
00:21:55,000 --> 00:21:59,800
The data they collect could
change our understanding of
how these sharks survive
312
00:21:59,880 --> 00:22:02,080
in such dangerous waters.
313
00:22:02,160 --> 00:22:06,440
KRISTINE: So that tag has a
Pinger essentially that sets
off at a certain frequency,
314
00:22:06,520 --> 00:22:12,200
roughly every 90 seconds,
and all across the bay we
have acoustic receivers
315
00:22:12,280 --> 00:22:15,200
which are just these
listening devices that
will pick up those pings,
316
00:22:15,280 --> 00:22:17,520
so that we can
essentially track the
Bull shark's movements
317
00:22:17,600 --> 00:22:21,360
throughout the bay as
it's passing each of
those receivers.
318
00:22:21,440 --> 00:22:25,560
NARRATOR: Will their
movements overlap with
Stumpy, the alligator?
319
00:22:25,640 --> 00:22:30,760
And will the camera tags
capture the first underwater
footage of a clash?
320
00:22:30,840 --> 00:22:33,760
If it does, it will
be a world first.
321
00:22:33,840 --> 00:22:35,640
MIKE: If you go that way,
there are alligators,
322
00:22:35,720 --> 00:22:38,360
that way, there are
alligators and here we
are with Bull sharks
323
00:22:38,440 --> 00:22:40,240
all over the place.
324
00:22:40,320 --> 00:22:43,480
So, it really shows this
is the collision zone for
these two big predators.
325
00:22:49,920 --> 00:22:53,440
NARRATOR: As the team
waits for their camera
tags to pop off,
326
00:22:53,520 --> 00:22:56,360
the investigation
heads to Maryland,
327
00:22:56,440 --> 00:23:01,880
where new research suggests
shark gator conflicts have
been taking place here
328
00:23:01,960 --> 00:23:03,680
for millions of years.
329
00:23:04,440 --> 00:23:07,680
And the sharks sometimes
come out on top.
330
00:23:11,400 --> 00:23:14,680
STEPHEN: A professional
collector came to visit me,
331
00:23:14,760 --> 00:23:17,080
his name is Dougie
Douglas and he's well
known in the area
332
00:23:17,160 --> 00:23:19,080
for collecting fossils
from along Calvert Cliffs.
333
00:23:22,760 --> 00:23:26,600
And he came to my office
with this coprolite.
334
00:23:26,680 --> 00:23:29,280
Now a coprolite is the
technical term that we give
335
00:23:29,360 --> 00:23:33,440
to fossilized feces and
we think that this
336
00:23:33,520 --> 00:23:36,080
kind of coprolite came
originally from a crocodile.
337
00:23:43,000 --> 00:23:45,120
But when he first
showed it to me,
338
00:23:45,200 --> 00:23:47,800
I just could not
believe what my eyes
were seeing because
339
00:23:47,880 --> 00:23:54,800
there are tooth impressions
along both surfaces, deep
ones on this flattened side,
340
00:23:54,880 --> 00:23:59,840
but more shallow ones
on this convex side and
it's really clear that
341
00:23:59,920 --> 00:24:02,840
these tooth impressions
were actually made by a
shark.
342
00:24:12,280 --> 00:24:15,160
NARRATOR: 23 million
years ago, ancient sharks
343
00:24:15,240 --> 00:24:20,160
and crocodiles roamed
this coastline hunting
for prey like turtles.
344
00:24:22,000 --> 00:24:24,880
But did they also
prey on each other?
345
00:24:28,480 --> 00:24:32,000
Stephen is convinced this
fossil holds the answer.
346
00:24:33,800 --> 00:24:39,040
STEPHEN: I thought to myself,
"If I take a liquid molding,
I'll be able to see hopefully
347
00:24:39,120 --> 00:24:45,560
the shape of the teeth
that penetrated into
the coprolite."
348
00:24:45,640 --> 00:24:47,800
Now, one of the amazing
things about sharks
349
00:24:47,880 --> 00:24:52,120
is that you can almost
always identify the
species of shark
350
00:24:52,200 --> 00:24:54,400
by the shape of
the tooth.
351
00:24:57,360 --> 00:25:01,400
And by looking at
the natural cast,
352
00:25:01,480 --> 00:25:05,000
I was able to determine that
these teeth came from
353
00:25:05,080 --> 00:25:08,040
one of the extinct kinds of
Tiger sharks that we find
along Calvert Cliffs.
354
00:25:11,040 --> 00:25:14,320
NARRATOR: The culprit
is identified.
355
00:25:14,400 --> 00:25:19,080
But one mystery
remains. How were the
teeth marks made?
356
00:25:22,920 --> 00:25:26,120
STEPHEN: So, when I
noticed that the shark
tooth impressions
357
00:25:26,200 --> 00:25:30,280
did not equally penetrate
into the coprolite,
358
00:25:30,360 --> 00:25:33,240
I wondered why that was?
359
00:25:33,320 --> 00:25:36,880
Because if the shark had
bitten the feces and they had
been floating in the water,
360
00:25:36,960 --> 00:25:39,520
I would have expected
the teeth in the upper
and lower jaws
361
00:25:39,600 --> 00:25:44,160
to have equally penetrated
into the fresh feces.
362
00:25:44,240 --> 00:25:48,920
I realized that maybe
the feces were not outside
the body of the crocodile,
363
00:25:49,000 --> 00:25:52,720
but still within the
abdominal cavity and
that's why the teeth
364
00:25:52,800 --> 00:25:56,440
had not equally penetrated
both sides of the coprolite.
365
00:25:58,920 --> 00:26:01,840
That when the shark
ploughed into the abdomen,
366
00:26:01,920 --> 00:26:06,880
its teeth penetrated one
side further than the other,
367
00:26:06,960 --> 00:26:10,280
this then came detached
from the rest of the
crocodile's body,
368
00:26:10,360 --> 00:26:13,920
sank to the bottom of
the ocean, was entombed
by sediments
369
00:26:14,000 --> 00:26:17,160
and 15 million years later
was found by Dougie Douglas.
370
00:26:18,320 --> 00:26:21,800
Clearly, crocodilians,
which are apex predators,
371
00:26:21,880 --> 00:26:24,360
and sharks, which are
also apex predators,
372
00:26:24,440 --> 00:26:26,200
have been clashing
for millions of years.
373
00:26:29,400 --> 00:26:32,680
NARRATOR: Could modern
day sharks take down a
crocodile?
374
00:26:33,040 --> 00:26:35,640
MIKE: I mean, this
is really incredible.
375
00:26:35,720 --> 00:26:39,240
NARRATOR: The investigation
heads down under,
in search of answers.
376
00:26:47,240 --> 00:26:49,560
The Northern
Territory, Australia.
377
00:26:52,560 --> 00:26:57,600
Home to the biggest
crocodilians on Earth,
saltwater crocs.
378
00:26:58,800 --> 00:27:02,720
In the rivers here,
salties rule supreme.
379
00:27:03,520 --> 00:27:10,000
Bulls, Sawfish, and
Spear tooth sharks all
patrol these waterways.
380
00:27:10,080 --> 00:27:15,880
But they're no match for
the salties, which can
reach 20 feet in length.
381
00:27:16,840 --> 00:27:21,200
In recent years,
clash after clash has been
recorded along these rivers.
382
00:27:22,760 --> 00:27:26,360
With crocs coming out on
top every single time.
383
00:27:29,960 --> 00:27:34,480
Ten percent of the
river sharks have
scars from attacks.
384
00:27:36,320 --> 00:27:39,680
Hunted to near
extinction in the 1960s,
385
00:27:39,760 --> 00:27:43,760
in recent years
salty numbers have
been exploding.
386
00:27:44,880 --> 00:27:49,680
Now, up to 200,000 live
in Northern Australian.
387
00:27:50,920 --> 00:27:55,720
And running out of space
in the rivers, they're
heading out to sea.
388
00:28:01,680 --> 00:28:05,360
MIKE: Saltwater crocodiles
are the champions of the
crocodile world
389
00:28:05,440 --> 00:28:07,840
when it comes to spending
time in the ocean,
390
00:28:07,920 --> 00:28:10,800
and it's because they can get
rid of the salt so well,
391
00:28:10,880 --> 00:28:14,920
they have salt glands on their
tongue, they keep pumping
that salt out of there.
392
00:28:15,000 --> 00:28:16,960
You know, it's not uncommon
for them to make movements
393
00:28:17,040 --> 00:28:20,440
of more than 100
kilometers out to sea
394
00:28:20,520 --> 00:28:25,720
and that's one of the
reasons that they've spread
over such a big area.
395
00:28:25,800 --> 00:28:30,240
NARRATOR: But despite their
ability to spend several
weeks in salt water,
396
00:28:30,320 --> 00:28:36,080
growing evidence suggests
they might not be as dominant
over sharks here in the ocean.
397
00:28:37,840 --> 00:28:40,560
Alan Withers lives and
works in one of Australia's
398
00:28:40,640 --> 00:28:44,320
most remote areas, the
Cobourg Peninsula.
399
00:28:45,400 --> 00:28:50,200
ALAN: We can go for two,
three months without
seeing other people,
400
00:28:50,280 --> 00:28:53,840
we're cut off around
four months a year,
401
00:28:53,920 --> 00:28:58,320
during the wet
season, by rivers
which are impassable.
402
00:28:58,400 --> 00:29:02,440
NARRATOR: While people
are thin on the ground,
turtles are not.
403
00:29:04,640 --> 00:29:06,840
Throughout the year, they
head to the peninsula's
404
00:29:06,920 --> 00:29:09,440
isolated beaches to
lay their eggs.
405
00:29:13,480 --> 00:29:17,520
And the coastal crocodiles
take full advantage.
406
00:29:17,600 --> 00:29:20,880
ALAN: The crocodiles
troll the beaches,
407
00:29:20,960 --> 00:29:23,240
just waiting for a turtle
to come up and nest,
408
00:29:27,120 --> 00:29:28,600
and bang, gotcha.
409
00:29:36,440 --> 00:29:41,960
NARRATOR: In 2016, Alan
captured something
extraordinary.
410
00:29:45,080 --> 00:29:47,840
ALAN: We'd seen a crocodile
a fair way offshore
411
00:29:47,920 --> 00:29:52,080
heading towards the
beach with the turtle
in its mouth.
412
00:29:56,960 --> 00:30:00,480
So, I put the drone
up and sent it out.
413
00:30:03,400 --> 00:30:05,400
NARRATOR: His
footage was a first.
414
00:30:07,680 --> 00:30:10,920
The croc was being tailed
by a pack of sharks.
415
00:30:11,000 --> 00:30:17,000
ALAN: They were pretty
much onto it straightaway,
they come in like bullets.
416
00:30:17,080 --> 00:30:20,720
NARRATOR: As the croc
tries to flee with the
turtle in its mouth,
417
00:30:20,800 --> 00:30:26,240
more and more sharks
arrive including a
large Tawny Nurse shark.
418
00:30:26,320 --> 00:30:28,600
ALAN: And the big Tawny
sharks and the Blacktips
419
00:30:28,680 --> 00:30:32,400
were actually swimming
up beside him and
420
00:30:32,480 --> 00:30:35,720
nipping chunks off it
while it was in the
crocodile's mouth.
421
00:30:39,920 --> 00:30:41,960
By the time the crocodile
got to the beach,
422
00:30:42,040 --> 00:30:44,560
all it had left was
literally an empty shell.
423
00:30:48,960 --> 00:30:50,600
The sharks had
stolen the lot.
424
00:31:00,880 --> 00:31:03,880
NARRATOR: Incredibly
this clash between
packs of sharks
425
00:31:03,960 --> 00:31:08,960
and huge saltwater
crocodiles is not a one off.
426
00:31:09,040 --> 00:31:14,000
ALAN: It's a regular
event, whenever a large
crocodile catches a turtle,
427
00:31:14,080 --> 00:31:17,120
there's certainly a
percentage of body fluid
428
00:31:17,200 --> 00:31:19,640
and blood in the water
which attracts the sharks
429
00:31:19,720 --> 00:31:23,920
and, indeed, pretty much most
times that we've seen large
crocodiles with turtles,
430
00:31:24,000 --> 00:31:29,040
the sharks, they're present
for an easy meal, ripping
bits off as it goes.
431
00:31:33,120 --> 00:31:36,400
MIKE: So, yeah, this footage
shows just how complex
432
00:31:36,480 --> 00:31:39,560
the relationship between
sharks and crocs can be.
433
00:31:39,640 --> 00:31:42,600
It's not just about
who eats who,
434
00:31:42,680 --> 00:31:45,600
this shows that sharks
might actually take
advantage of crocodiles,
435
00:31:45,680 --> 00:31:48,840
none of those sharks
on their own,
436
00:31:48,920 --> 00:31:51,760
could really match up one
on one with that crocodile.
437
00:31:51,840 --> 00:31:54,600
But with those numbers, you
know, in that ocean realm,
438
00:31:54,680 --> 00:31:56,800
where they've got
lots of space to maneuver,
439
00:31:56,880 --> 00:31:59,800
the croc's got
no chance if it wants
to try to keep its meal,
440
00:31:59,880 --> 00:32:04,520
'cause as soon as it, you
know, looks at one shark,
another one comes in.
441
00:32:04,600 --> 00:32:08,880
But while this footage is
unique, and I would bet that
this kind of interaction
442
00:32:08,960 --> 00:32:11,480
is happening a lot
more often than we
think because
443
00:32:11,560 --> 00:32:14,080
sharks are kind of the
ultimate opportunists,
444
00:32:14,160 --> 00:32:16,920
and a free meal is not
something they'll pass up.
445
00:32:20,360 --> 00:32:22,880
NARRATOR: Across the
mangroves and
twisted waterways
446
00:32:22,960 --> 00:32:24,960
of Rookery Bay in the
Everglades,
447
00:32:25,040 --> 00:32:28,000
a unique experiment
is coming to an end.
448
00:32:30,880 --> 00:32:35,120
For the past 24 hours,
camera tags record
every move
449
00:32:35,200 --> 00:32:37,120
alligators and
Bull sharks make
450
00:32:37,200 --> 00:32:40,400
in the suspected shark
gator battleground.
451
00:32:42,720 --> 00:32:45,360
KRISTINE: Alright, it's like
a lot louder over there.
452
00:32:45,440 --> 00:32:49,080
NARRATOR: Now released,
they're emitting a weak
VHF signal
453
00:32:49,160 --> 00:32:52,000
the team is using to zero
in on their location.
454
00:32:55,720 --> 00:32:57,360
KRISTINE: Woo! We did it.
455
00:32:57,440 --> 00:33:02,560
NARRATOR: And the data
inside shows Stumpy
striking to kill.
456
00:33:06,600 --> 00:33:08,080
MIKE: Oh man.
457
00:33:08,160 --> 00:33:11,840
NARRATOR: Back at
base, Mike analyses
Stumpy's data.
458
00:33:11,920 --> 00:33:13,880
MIKE: This is super
cool, I mean, this
is the first time
459
00:33:13,960 --> 00:33:16,960
we've been able to put a
camera on an alligator
in these coastal
460
00:33:17,040 --> 00:33:21,360
Everglades waters, you
know, there's just so
much we're gonna
461
00:33:21,440 --> 00:33:24,960
be able to learn by
getting this window
into their world.
462
00:33:26,960 --> 00:33:31,360
NARRATOR: Stumpy spends
most of the night hugging
the edge of the mangroves
463
00:33:31,440 --> 00:33:33,520
and resting at the surface.
464
00:33:33,600 --> 00:33:35,640
MIKE: But then at about
2:45 in the morning,
465
00:33:35,720 --> 00:33:39,680
things change, and he
goes into hunting mode.
466
00:33:49,720 --> 00:33:53,440
You see him a couple of
times make these big lunges
to try to catch something.
467
00:34:00,920 --> 00:34:02,880
You can also see
in one of these,
468
00:34:02,960 --> 00:34:06,960
a fish swim into the frame
and then as it swims out,
469
00:34:07,040 --> 00:34:11,160
Stumpy makes a big
lunge to try to catch it
as it's swimming away.
470
00:34:13,320 --> 00:34:17,840
And alligators have these
sensors called dome pressure
sensors on their snout,
471
00:34:17,920 --> 00:34:20,680
and those sense
vibrations in the water.
472
00:34:20,760 --> 00:34:23,880
So that fish swimming by
would have triggered those
473
00:34:23,960 --> 00:34:26,560
and he just lunged
to try to catch it.
474
00:34:27,080 --> 00:34:30,880
You can see from that
speed, if a little Bull
shark got too close,
475
00:34:30,960 --> 00:34:32,720
Stumpy could catch it.
476
00:34:33,440 --> 00:34:36,120
NARRATOR: GPS coordinates
from Stumpy's tag
477
00:34:36,200 --> 00:34:40,880
reveal exactly where and
when he was hunting.
478
00:34:40,960 --> 00:34:44,280
At two in the morning,
he moves out into the canal
479
00:34:44,360 --> 00:34:47,800
and his movements become
a lot more purposeful
480
00:34:47,880 --> 00:34:51,120
as he moves upstream
looking for prey.
481
00:34:52,680 --> 00:34:55,000
MIKE: You know, why
did that change
happen? We don't know.
482
00:34:55,080 --> 00:34:59,080
I mean, maybe that's
it's favorite hunting
time and hunting ground.
483
00:34:59,160 --> 00:35:01,920
But then, you know, as
we get onto six thirty
in the morning,
484
00:35:02,000 --> 00:35:04,400
unfortunately something
else happened.
485
00:35:04,480 --> 00:35:08,520
The camera and the
GPS stopped working,
486
00:35:08,600 --> 00:35:11,520
but luckily the
depth sensor and the
accelerometer
487
00:35:11,600 --> 00:35:16,680
kept on going and the
data we got from those
is really intriguing.
488
00:35:18,080 --> 00:35:23,240
So, this graph is showing
us the depth where
Stumpy is spending time,
489
00:35:23,320 --> 00:35:27,160
and the yellow shows us
how fast it's moving.
490
00:35:27,240 --> 00:35:30,800
Things change when
the sun comes up,
Stumpy's going down
491
00:35:30,880 --> 00:35:33,160
to the bottom and
just being completely
492
00:35:33,240 --> 00:35:36,680
motionless for long
periods of time, maybe 20
minutes or more.
493
00:35:39,320 --> 00:35:41,640
And then you have
these quick bursts up,
494
00:35:41,720 --> 00:35:44,640
where he changes
the depth and you
see that kind of
495
00:35:44,720 --> 00:35:48,720
explosive speed,
which could be him
lunging at prey
496
00:35:48,800 --> 00:35:52,000
and that's kind of what
we'd expect for a sit
and wait predator,
497
00:35:52,080 --> 00:35:53,720
especially during the day.
498
00:35:56,640 --> 00:36:01,160
NARRATOR: It's a unique
insight into how gators
ambush their prey
499
00:36:01,240 --> 00:36:05,560
and are able to bring down
faster and more agile sharks.
500
00:36:08,720 --> 00:36:13,720
MIKE: So, here's what
we think is going on, those
alligators are lying in wait,
501
00:36:13,800 --> 00:36:18,920
their dark skin probably
blends in with the
habitat around them.
502
00:36:19,000 --> 00:36:24,200
And then when something
like a shark swims over
the top, they detect it,
503
00:36:24,280 --> 00:36:27,920
they can burst up
from the bottom with
that powerful tail
504
00:36:28,000 --> 00:36:30,720
and grab that shark on
the soft underbelly
505
00:36:30,800 --> 00:36:33,040
before it even knows
the alligator is there.
506
00:36:33,120 --> 00:36:35,840
And, you know, that's
really the only way
these gators
507
00:36:35,920 --> 00:36:38,040
are gonna be able
to catch sharks
508
00:36:38,120 --> 00:36:40,800
that are faster and more
agile than they are.
509
00:36:47,680 --> 00:36:50,680
NARRATOR: Footage from
sharkcam reveals just
how hard it is
510
00:36:50,760 --> 00:36:54,160
for sharks to spot
the gators in these
murky waters.
511
00:36:55,400 --> 00:36:59,760
MIKE: You can see that the
visibility is terrible,
512
00:36:59,840 --> 00:37:02,520
and this is really
typical of the waters
513
00:37:02,600 --> 00:37:04,640
that these Bull
sharks are inhabiting.
514
00:37:04,720 --> 00:37:07,680
Virtually zero visibility,
so they can't rely on
515
00:37:07,760 --> 00:37:10,760
their eyes to find a
meal or avoid predators
516
00:37:10,840 --> 00:37:13,200
which can include
big alligators.
517
00:37:13,280 --> 00:37:16,840
NARRATOR: Despite the
dangers, evidence from
the acoustic tags
518
00:37:16,920 --> 00:37:18,720
fitted inside the sharks,
519
00:37:18,800 --> 00:37:22,920
shows just how close
they come to gators on
a daily basis.
520
00:37:23,000 --> 00:37:25,520
MIKE: The baby Bull
sharks are spending the
majority of their time
521
00:37:25,600 --> 00:37:27,960
in the mouth of
the river here,
522
00:37:28,040 --> 00:37:30,800
they're in these
very shallow bays.
523
00:37:30,880 --> 00:37:33,000
Occasionally though,
they are going
upstream and, in fact,
524
00:37:33,080 --> 00:37:35,480
when we look at the
monitors here,
525
00:37:35,560 --> 00:37:38,920
there's a shark that
hits them all pretty
much every day,
526
00:37:39,000 --> 00:37:40,640
and we know that
alligators go
527
00:37:40,720 --> 00:37:43,280
further down than
Stumpy did, we've seen
them right here
528
00:37:43,360 --> 00:37:45,480
at the very base
of the habitat,
529
00:37:45,560 --> 00:37:48,800
where all of these sharks
are spending a lot of time.
530
00:37:48,880 --> 00:37:52,120
NARRATOR: The team
may not have captured
a clash on camera,
531
00:37:52,200 --> 00:37:54,120
but it's groundbreaking
evidence
532
00:37:54,200 --> 00:37:58,040
that the Everglades is a
shark croc battleground.
533
00:38:00,520 --> 00:38:05,760
MIKE: Yeah look, when you
see these tracks and you look
at the data we've collected,
534
00:38:05,840 --> 00:38:07,280
there's no question
that Bull sharks
535
00:38:07,360 --> 00:38:10,640
and alligators overlap a
ton and that's why we're
536
00:38:10,720 --> 00:38:12,600
starting to see more
and more pictures
537
00:38:12,680 --> 00:38:15,680
and videos come in
from around the world
of crocodiles
538
00:38:15,760 --> 00:38:19,080
and alligators that
have eaten sharks.
539
00:38:19,160 --> 00:38:23,120
NARRATOR: But do meetings
always end in confrontation?
540
00:38:23,200 --> 00:38:26,920
Back in Australia,
the death of a whale
brings a ten-foot
541
00:38:27,000 --> 00:38:31,840
shark and a 13-foot
croc face to face.
542
00:38:35,160 --> 00:38:41,880
Around the world, evidence
of crocs and gators clashing
with sharks is on the rise.
543
00:38:41,960 --> 00:38:46,920
In Florida, research shows
their territories overlap
544
00:38:47,000 --> 00:38:50,680
and sharks sometimes end
up on the gator menu.
545
00:38:51,480 --> 00:38:55,560
In South Africa, Nile
crocodiles attack Bull sharks
546
00:38:55,640 --> 00:38:59,440
and mysterious severed
heads wash up on beaches.
547
00:38:59,520 --> 00:39:03,480
And off the coast of
Australia, sharks
use their strength
548
00:39:03,560 --> 00:39:07,200
in numbers to mock crocs
and steal their food.
549
00:39:09,480 --> 00:39:15,040
Now, remarkable new
evidence suggests shark
croc encounters
550
00:39:15,120 --> 00:39:17,880
might not always end
in confrontation.
551
00:39:20,120 --> 00:39:23,760
The Kimberley Coast,
Western Australia.
552
00:39:23,840 --> 00:39:27,640
Jeremy Tucker is skippering
a whale spotting cruise
553
00:39:27,720 --> 00:39:30,120
when he comes across
the body of a huge
554
00:39:30,200 --> 00:39:34,320
50 foot Humpback floating
four miles from the coast.
555
00:39:34,400 --> 00:39:38,720
JEREMY: We realized
that it was upside down
and just floating,
556
00:39:38,800 --> 00:39:41,800
so we went over
to the whale,
557
00:39:41,880 --> 00:39:46,680
and we realized that
there was a few sharks
feeding on it.
558
00:39:48,360 --> 00:39:52,040
And as we got closer,
we realized that they
were Tiger sharks
559
00:39:52,120 --> 00:39:56,040
and there was a couple
of really big ones.
560
00:39:56,120 --> 00:39:58,400
NARRATOR: Around the world,
the death of the whale
561
00:39:58,480 --> 00:40:01,720
often triggers a
shark feeding frenzy.
562
00:40:02,720 --> 00:40:08,600
Whale blubber is one of
the most energy rich
foods in the ocean.
563
00:40:08,680 --> 00:40:12,560
Every pound contains
over 3000 calories.
564
00:40:13,840 --> 00:40:18,280
A single whale can
attract over 200 sharks.
565
00:40:18,360 --> 00:40:21,880
But today, the
sharks have company.
566
00:40:24,840 --> 00:40:26,320
JEREMY: I decided to
put the drone up,
567
00:40:26,400 --> 00:40:31,480
and there was a lot of bite
marks out of the whale.
568
00:40:31,560 --> 00:40:36,920
As we got closer, we realized
that there was a croc
there feeding on the whale.
569
00:40:37,000 --> 00:40:39,600
It was really unique,
and we all realized that.
570
00:40:42,320 --> 00:40:43,920
He was probably about
three meters long
571
00:40:44,000 --> 00:40:47,720
and he wasn't fussed
about the sharks around,
572
00:40:47,800 --> 00:40:50,400
he just did his own thing,
and he was sort of trying
573
00:40:50,480 --> 00:40:54,600
to sit on the pectoral
fin and, and get a feed.
574
00:40:57,840 --> 00:41:00,760
The bigger Tiger
shark actually went
underneath the whale
575
00:41:00,840 --> 00:41:04,520
and sort of stayed
in the shadows.
576
00:41:05,360 --> 00:41:09,160
They didn't seem to be too
worried about each other,
I think the food was there
577
00:41:09,240 --> 00:41:11,480
and they had plenty to
eat, so they were happy.
578
00:41:13,000 --> 00:41:16,280
NARRATOR: For 45 minutes
this unique footage shows
579
00:41:16,360 --> 00:41:20,000
the two predators feeding
on the huge whale carcass.
580
00:41:24,000 --> 00:41:27,680
JEREMY: I think they
were pretty full.
581
00:41:27,760 --> 00:41:30,800
We noticed the Tiger
shark swimming around
and just having a bite,
582
00:41:30,880 --> 00:41:33,440
and a little bit of a shake
and then swimming off.
583
00:41:37,560 --> 00:41:40,640
But there was no
aggressiveness or
there was no feeding
584
00:41:40,720 --> 00:41:42,320
frenzy or anything
like that.
585
00:41:42,400 --> 00:41:45,600
So obviously they had
been feeding on that
whale for a while.
586
00:41:45,680 --> 00:41:50,000
NARRATOR: As Jeremy is
about to leave, something
extraordinary happens.
587
00:41:50,080 --> 00:41:54,880
The croc and the shark
begin feeding within
inches of each other.
588
00:41:54,960 --> 00:41:59,280
JEREMY: And when we first
saw it, we seriously thought
it was quite unique, I mean,
589
00:41:59,360 --> 00:42:01,600
you just don't see that.
590
00:42:12,920 --> 00:42:15,920
MIKE: I mean, this is
incredible, I mean,
591
00:42:16,000 --> 00:42:18,120
you know, sharks feeding
from a whale carcass,
592
00:42:18,200 --> 00:42:21,760
that's something you're
used to seeing, but a
crocodile?
593
00:42:21,840 --> 00:42:24,960
Yeah, I've never seen that.
594
00:42:25,040 --> 00:42:28,680
We usually think of
crocs, gators and sharks
595
00:42:28,760 --> 00:42:31,080
as the consummate
predators, you know,
596
00:42:31,160 --> 00:42:36,120
chasing or ambushing their
prey, but they are not
gonna pass up a free meal,
597
00:42:36,200 --> 00:42:41,520
and they are amazing
scavengers, and when you
find a bonanza like a whale,
598
00:42:41,600 --> 00:42:43,560
these animals can fill
their stomachs up
599
00:42:43,640 --> 00:42:46,040
and go many months without
having to eat again.
600
00:42:46,120 --> 00:42:48,840
So, this is a real
windfall for them.
601
00:42:48,920 --> 00:42:50,840
And when you've got this
much food around,
602
00:42:50,920 --> 00:42:54,080
you wouldn't expect
there to be any
aggressive interactions,
603
00:42:54,160 --> 00:42:56,480
the predatory instincts
are put aside
604
00:42:56,560 --> 00:42:59,920
and it's all about just
having a free meal.
605
00:43:00,000 --> 00:43:03,200
But if you took that
food source away, things
could be very different.
606
00:43:06,880 --> 00:43:10,720
Crocs and sharks are two
amazing predator groups
607
00:43:10,800 --> 00:43:14,680
that have been interacting
for millions of years.
608
00:43:14,760 --> 00:43:19,160
But in the 20th century their
populations have plummeted.
609
00:43:19,240 --> 00:43:21,920
Now they're just
starting to rebound
610
00:43:22,000 --> 00:43:25,440
and we're seeing
the interactions
happen more often,
611
00:43:25,520 --> 00:43:30,560
and there are more
people out there filming
and photographing it.
612
00:43:30,640 --> 00:43:32,920
When you go up into the
rivers and estuaries,
613
00:43:33,000 --> 00:43:36,080
it looks like the crocs
and gators reign supreme.
614
00:43:39,160 --> 00:43:42,760
They've got the size,
they've got the burst speed,
615
00:43:42,840 --> 00:43:45,920
you know, small sharks
that live there, they
can be on the menu.
616
00:43:48,880 --> 00:43:53,960
But as you move out to
the ocean, that is the
shark's ground
617
00:43:54,040 --> 00:43:55,920
and the sharks those
gators and crocs run into
618
00:43:56,000 --> 00:43:58,800
are gonna probably
be a lot bigger.
619
00:44:01,280 --> 00:44:04,360
So, if I were a croc or
a gator in the ocean,
620
00:44:04,440 --> 00:44:06,360
I'd watch my back
a bit more.
621
00:44:07,840 --> 00:44:09,240
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