All language subtitles for Spy In The Ocean 03

DAVID TENNANT:
The world's oceans are full of wonder...

an alien world, waiting to be explored...

a place of extraordinary Iifeforms

with intriguing social lives

and incredible intelligence.
— DOLPHIN SQUEAKS

To reveal their secrets,
a hidden team goes undercover...

spy creatures.

The most innovative
undersea robots in the world.

They not only look like the animals they film

they interact with them as no human can.

Equipped with hidden cameras...

they reveal their astonishing lives.

As our spies join their undersea world...

they shed light on
some of the mysteries of the deep.

On our spies' latest mission

they reveal
the extraordinary relationships

that exist among
the creatures of the ocean.

In Australia,
an astonishing event is undenNay.

Cued by the full moon

Spider crabs rise up from the abyss

deep below.

To reveal what's going on

Spy Crab joins the march.

Eight robotic legs
give the traction it needs.

Like the real thing,
a hard shell protects its innards...

in this case, a camera.

Over the next two weeks

thousands upon thousands

of these usually solitary creatures
will gather.

Then... a hint at Why they're here.

Spy Crab discovers
that some are emerging from their shell.

Squeezing out can take
15 minutes or more.

Enzymes oil the process

helping her slip away.

Freed from what's become a prison

she now has space to grow.

Her new shell will take weeks to harden.

Until then,
she'll hide among the better protected.

For now, she'll make do with our spy.

She has good reason to hide away...

There are plenty out to get her.

A four—metre stingray
can eat 50 crabs a day.

They hoover up
any who've lost their shell.

Our spy becomes the crab's defender.

The ray will look for an easier meal.

Those with hard shells
aren't worth the trouble.

Males even stand and fight.

Those with soft shells
hide among the hordes.

Despite their brave defenders

the ray can hunt them down...

It makes short work
of extracting meat from shell.

The crab—in—hiding makes her getaway.

She needs to get lost in the crowd.

The ray's victim is now an empty husk.

But he's yet to have his 50—a—day...

and the fleeing crab is still in the open.

She's made it.

Now to vanish among the masses...

The greater the numbers,
the harder it is for the ray.

Those with hard shells
form an armoured fortress

with the soft-shelled hidden beneath.

Left in the open,
Spy Crab is now a sitting target.

It gets the full death—ray treatment.

A crab's—eye—view of an untimely end.

But it's still live and kicking.

It's not over yet.

This time, the ray did it a favour.

Back firmly on its own eight feet

our spy heads to the fortress.

It has a tower of crustaceans to climb.

But there's no need.

The crabs come to our spy.

They create a shield of legs and armour.

A living citadel built on sand...

a brief monument
to the strength of teamwork.

Many sea creatures
have found value in being together.

Sharks may have a reputation
as solitary killers

but many are surprisingly social.

Scalloped hammerheads
are among the most sociable of all.

They travel in their hundreds

as they head to a remote island
300 miles off the Colombian coast.

Today, they have a spy in their midst...

a mechanical marvel,
propelled by its shark—like tail.

It hardly makes a sound

vital when filming these
surprisingly shy creatures.

As well as a camera in each eye...

it has another in its fin

one with 360 vision.

It can even film through its jaws.

Our spy has much to reveal.

Most are female

with the largest in the middle
and the smallest outside.

Some even choose
a travel companion for their journey.

When they reach the island,
they linger for a while.

Malpelo is a magnetic anomaly.

A place where the Earth's magnetic field
is distorted by the rocks below.

Hammerheads use
the magnetic field as a compass

so this place has unseen significance.

They gather here, having returned
from their feeding grounds.

They are met
by a surprising welcoming party.

King angelfish...

that provide a personal grooming service
to these would—be killers.

Wounds are attended to

and parasites removed.

As hammerheads feed in the deep ocean

the angelfish here are safe.

While they get a meal

the sharks enjoy a makeover.

In this topsy—turvy world

fish seem to like sharks so much

even our spy gains a following.

Galapagos sharks
also visit this undersea spa

and receive the same warm welcome.

Pilot fish cluster round
the shark's jaws

but are never taken.

Instead, they benefit
from the shark's protection.

In return, they clean its teeth

and gain a meal in the bargain.

Flainbow chub are also shark—lovers.

a trick thought to scrape off parasites.

In this place of apparent harmony

other intriguing relationships
can be found.

Spy Moray Eel joins the team.

Like the real thing, it moves silently.

Its mechanical spine
creates the waves that propel its body.

This is what it came to see...

a community of moray eels.

Despite their ghoulish looks
and razor—sharp teeth

they live in relative harmony.

Spy Moray is here
to study the partnership they share.

Their unlikely allies
are leather bass groupers.

Our robotic Moray
soon attracts their attention...

for the fish are here
to wake up the eels.

Their snooze alarm
could hardly be gentler.

But, one by one...

they stir.

The groupers signal it's time to follow.

With more gentle encouragement

the eels oblige.

To discover the reason,
Spy Moray follows behind.

They're heading to a spot
the fish have checked out before.

A place where smaller fish are hiding.

A headstand marks the spot.

A signal to the eels.

They slink in where groupers can't

and flush out the fish.

There's one!

Then another!

And another!

Most are too quick to catch.

But in the scrum

there's enough for both
groupers and eels...

despite the ones that get away.

It's the perfect relationship,
Where both gain.

But Spy Moray is experiencing
a technical malfunction.

A loss of transmission...

but still keeps filming.

The groupers act as if
our spy is part of the hunt...

and has found something.

Soon, our spy is completely smothered.

But help has arrived.

A spy to shepherd them away.

The signal finally gets through.

Like others in this undersea community

our spies use teamwork too.

In the oceans, working in partnership
is surprisingly common.

For bottlenose dolphins,
it's a way of life.

To strengthen the bonds between them

they spend a lot of time at play.

To find out who else
might join their games

Spy Pelican follows from above...

while Spy Dolphin films from below.

DOLPHINS SQUEAK

Together, our roving spy creatures
find a possible playmate...

a southern right whale...

DOLPHINS SQUEAK

...a species not known
for its fun—loving lifestyle.

It will need some coaxing...

something to get it in the mood.

Already, it seems to be working.

Some show their belly

a sign they want to play.

DOLPHINS CLICK

The whale even attempts a leap.

They have the playmate they're after.

But who can compete with a dolphin?

There's no harm trying.

DOLPHINS SQUEAK

Another whale joins.

It's now double the fun.

DOLPHINS SQUEAK

Still more arrive.

But you can have
too much of a good thing.

Party over,
the dolphins take their cue to leave.

Spy Dolphin gives it one last go...

but it's not the same.

To discover that whales and dolphins
play together

is a revelation.

For our spies

there are always new surprises
to uncover...

WHALE SINGS

...and more astonishing
relationships to find.

DOLPHIN SQUEAKS AND CLICKS

This pair of male dolphins
are of different species.

One is a bottlenose

the other a rare humpback dolphin.

They were forced from their family pod

once they came of age.

DOLPHINS SQUEAK

Cast out and alone

they found company in each other.

Now, they go everywhere together.

A true bond between friends.

DOLPHINS SQUEAK AND CLICK

But despite their close relationship

they need to join a pod.

A gang of male dolphins
is just what they're looking for.

DOLPHINS SQUEAK

But these are bottlenose dolphins

so the humpback must be cautious.

His friend calls to the group

a specific whistle unique to him.

DOLPHIN WHISTLES

The humpback follows
as close as he dare

anxious not to lose his companion.

DOLPHIN SQUEAKS AND WHISTLES

But pods are reluctant
to accept newcomers

and never those of a different species.

They drive the humpback away.

He won't be coming back.

DOLPHINS SQUEAK

HUMPBACK DOLPHIN CLICKS

The bottlenose must decide

does he follow his buddy

or make new friends here?

For the bottlenose

it's clear where his destiny lies.

It's not with the humpback dolphin.

But joining the pod won't be easy.

First, he must show he'll fit in.

His ploy is to use the moves
more often made by females.

DOLPHINS SQUEAK

It seems to do the trick.

But now, he faces
an initiation ceremony

one all males must endure.

Some rough—housing, to prove
he's a worthy member of the gang.

Over time, he'll be accepted

and he's better in the pod than outside.

For the humpback,
it's a different story...

he'll roam the ocean alone

until he finds a pod of his own.

Even sociable creatures like manatees

can't always choose who they mix with.

Spy Manatee is now
fully accepted into the group.

MANATEE SQUEAKS

Its discovering that even here,
they have friends they like

and then there are the hangers—on.

Latched onto her body are remora fish.

Totally harmless,
their relationship is extraordinary.

They feed on skin flakes and parasites

and whatever the manatee poos.

What was once a fin

has evolved into
a suction pad on their head.

As well as food

the manatees provide
an energy—saving way

to get around while keeping
water flowing through their gills.

Those on top travel upside down.

If they move to the belly,
they're more easily shooed away.

Even so,
there's always another free ride.

While remora can be a nuisance

sergeant major fish are welcomed.

The fish provide a cleaning sen/ice.

They graze on the algae
that grows on the skin.

For a full body treatment,
manatees strike a pose...

letting the fish tackle
those hard—to—reach places.

It sends them into a state of bliss...

until they nod off!

The spa is popular.

Everyone wants the full makeover.

But not all the fish here are friendly.

Nurse sharks patrol the coral heads

while stingrays search the sandy seabed.

These predators could be
the ultimate test for our spy.

Rays and sharks
can detect electromagnetic signals.

Spy Manatee has plenty of those!

An exploratory nibble.

But there's nothing here to be found.

Like most of our spies

Spy Manatee attracts the curious

rather than the aggressive.

In Indonesia, Spy hammerhead continues
its own journey of discovery.

It soon finds that across the ocean

similar partnerships have evolved.

Here, it's cleaner wrasse
that take on cleaning duties.

They even act as dental hygienists...

with trapped food the reward.

But these pearly whites
have nothing to offer.

An olive sea snake
shows his inquisitive side.

He's one of the most
venomous snakes in the world.

Today, he's on the hunt.

He can hold his breath
for up to two hours.

Useful when searching for a meal.

To catch them, he needs help.

And on the reef,
support is rarely far away.

A female, who's also hunting.

Like moray eels

the snakes have formed
a partnership with a fish.

But here, it's trevally
who know where food can be found.

All the snakes need to do
is follow them.

When they arrive,
the trevally show them where to look.

Like moray eels,
snakes can go Where others can't.

But these snakes have a problem.

They aren't the only ones hunting.

Soon, there are too many
after the same meal.

The snakes and trevally
grab what they can.

But there is a limited supply.

And more hungry snakes keep coming.

This partnership works best
with fewer numbers.

Today, there are not enough
fish to go round.

But the snake couple
won't go unrewarded.

It's now a relationship
of a more amorous kind.

They head to the surface...

joining together
in a serpentine embrace...

one that forms a fitting symbol.

Together,
they descend to the reef below.

They'll stay entwined
for up to an hour

before going their separate ways.

Of all the relationships
found in the ocean

few can beat the spinner dolphins.

As well as gathering in huge numbers

they are the acrobats of the dolphin world.

They can leap over three metres high

and spin seven times in ajump.

Today,
they're on a hunting expedition.

Spy Dolphin is here to find out
how they work as a team.

DOLPHINS SQUEAK

Their bubbles provide a clue.

On closer inspection

they plainly come
from the dolphin's blowholes.

DOLPHINS SOUEAK AND WHISTLE

A sign they are Whistling to each other.

They use these calls
to bring the pod together.

They also have a unique whistle
to announce who they are.

The dolphin equivalent of a name.

As well as Whistles,
they use clicks to communicate too.

DOLPHINS SQUEAK AND CLICK

Some clicks are ultrasonic

far above our hearing range.

All this works at close range

but to contact dolphins far away

they use their corkscrew leaping.

For an aerial view of what's going on

Spy Frigate films from above.

The leaps can be seen
by distant dolphins...

while the splashing can be heard
from far and wide.

All these cues
bring the dolphins together.

United,
they can hunt as a super team.

Our spy is in the midst
of an extraordinary gathering...

one of the greatest
mega—pods ever filmed.

DOLPHINS SQUEAK AND CLICK

Spy Dolphin is here to witness
this astonishing moment...

and there's yet more to discover.

Yellowfin tuna also heard the dolphins

and join their quest for a meal.

As both dolphins and tuna
travel together

the ocean becomes a superhighway.

Above, frigate birds join the travellers

including our spy version.

As they hear their goal

the dolphins leap into action.

A synchronised wave,
thousands strong.

Spy Frigate records the moment
they close in on their target.

They've found a fish shoal
of an unexpected kind...

a squadron of flying fish

chased into the air
by the hunting dolphins.

The tuna even try to grab them
as they fly.

With dolphins and tuna
working together

few escape.

The frigates, too, take what they can.

An event made possible
by extraordinary teamwork.

As the day ends,
they have reason to celebrate

and they do it in true dolphin style.

Off Mexico,
shoals of mackerel are gathering too.

Upwellings of nutrients
have caused plankton to bloom.

It's not only mackerel
that relish the feast.

A tuna crab

a type of squat lobster.

It won't be alone for long.

More are rising from the depths.

As always,
there's a spy for every occasion...

with a subject worthy of special attention.

Tuna crabs only come together
when conditions are perfect.

They may all look the same

but they are not short of character.

A blade of seagrass
becomes something to fight over.

It's now a tug of war...

with both a winner and a loser.

Spy Tuna Crab arrived
at a special moment...

an event that has rarely been filmed.

Hundreds soon become thousands.

Then thousands become millions.

They devour all the plankton they can.

When they've had their fill

they descend to the deep once more.

Those that leave are soon replaced

and so the cycle goes on.

Such numbers have seldom been seen.

A magical moment

before they vanish
into the depths once more.

When autumn brings storms
to the Caribbean

another gathering begins.

Spiny lobsters
leave their hideaways

and start to assemble.

They're preparing to migrate
to calmer and warmer waters.

One has yet to join them...

another spy.

As the storm builds,
conditions worsen.

Alone, they're vulnerable...

not just to currents, but predators too.

So they'll make their journey together.

Already, Spy Lobster has company.

Others also couple up.

Everyone joins the great migration...

including our spy,
and its newfound buddy.

As the lobsters come together

it becomes a game of follow-the—Ieader.

Latecomers race to join...

including our spy.

A chain soon starts to form.

It becomes a lobster conga

their antennae keeping each in line.

The members can number 50 or more.

No one wants to be left behind.

As they head for deeper water

walking in line reduces drag
and keeps them on course.

Guided by the Earth's magnetic field

they can march like this for days.

Already,
they are vanishing into the deep...

leaving Spy Lobster far behind.

Shipwrecks are testament
to the power of the storms.

They are now a refuge for those
sheltering from the turmoil above.

Another place, another spy!

This time, Spy Nautilus.

It finds that every
nook and cranny is occupied.

With little shelter elsewhere

the wreck is a magnet
for the vulnerable.

Spy Lobster joins the search.

Then, a promising sign.

Two lobsters
hiding beneath the broken bow.

They're not the only ones.

In every crevice,
more can be found.

With no claws to protect them

wrecks like this keep them safe.

For them,
the journey has been worth it.

Here, they'll spend the winter

until the shallows warm once more.

There is one place
our spies have yet to visit.

The islands of the Galapagos

are home to a rich community
of sea creatures.

On the volcanic rocks
that hug the coastline

marine iguanas bask in the morning sun.

It's a time to socialise

as they warm up for the day ahead.

Among the masses
is a visitor from outside...

a spy adapted to both land and sea.

It needs both talents

for iguanas feed on vegetation

and the land has little to offer.

Once they're up to temperature

they take the plunge.

Where they go...

our spy must follow.

Iguanas are coldblooded

so their time in the cold sea
is limited to just half an hour.

That includes battling the surf.

Spy Iguana swims
just like the real thing

propelled by its articulated tail.

When an iguana dives,
our spy dives too.

The best feeding grounds
lie deep beneath the waves.

Our spy will join them there.

Unlike the barren land

the sea is rich in nutrients.

It nourishes the algae
the iguanas depend on.

They eat little else.

Each has chosen a spot to graze.

Spy Iguana hardly causes a stir.

There's no rivalry here.

But the real iguanas
are on borrowed time.

He must eat what he can,
while he can.

Leave it too late,
and he'll be too cold to make it back.

But he knows when his time is up.

He heads to the surface
and returns to land.

Our spy has many other
inhabitants to meet.

The most playful of all
are Galapagos sealions.

And who better to play with
than our spy creature?

But playing games is not
in our spy's repertoire...

no matter the encouragement
it receives.

The sealion seeks
a more playful partner.

But he leaves Spy Iguana
in the best possible spot...

just in time to meet
a true wonder of the deep.

Mola mola...

a type of sunfish.

Its only means of propulsion
are its elongated fins.

One of the largest bony fish
in the ocean

it reaches three metres in length.

They visit for one reason only...

to be cleaned by angelfish and hogfish.

As our spies have found

almost all undersea communities

have their own grooming specialists.

Job done,
they return to the deep blue yonder.

Our spy has one last inhabitant to find.

The shallows are home
to a colony of damselfish.

They are suspicious of outsiders.

They're keen gardeners

so trespassers aren't welcome here.

They spend their time
tending their lawns of algae.

Like an allotment,
it's divided into plots.

To attract a mate

each male has his own patch
to care for.

They must beware of intruders.

A sea urchin

looking uncannily like a naval mine.

It creates its own kind of devastation.

It will graze their precious algae
down to the rock.

To remove it,
they must work together...

and use a bit of extra oomph.

It's now out of his patch...

and onto his neighbour's.

Each damselfish
passes it to the next fish along.

They'll persevere
until it's finally gone.

Nearly there...

Done it!

But our spies' adventures aren't over.

Spy Hammerhead has arrived
in the Galapagos

along with the hammerheads
last seen off Colombia.

The sharks are completing a round trip

that began in the seas
around these islands.

Hammerheads,
like other long—distance travellers

connect distant communities.

A network of partnerships
that reach across the globe.

As our spies have found

ocean life is interconnected

in ways we could hardly imagine.

An undersea world built
on extraordinary relationships.

Next time,
we discover some of the trouble

sea creatures face.

And what happens
when things go horribly wrong.

SEAL PUP CRIES

WHALES SING