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The world's oceans
are full of wonder.
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00:00:05,160 --> 00:00:09,240
An alien world,
waiting to be explored.
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00:00:11,640 --> 00:00:15,200
A place of
extraordinary life forms...
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00:00:15,200 --> 00:00:18,160
..with intriguing social lives...
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00:00:19,600 --> 00:00:22,000
..and incredible intelligence.
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00:00:22,000 --> 00:00:24,160
To reveal their secrets,
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00:00:24,160 --> 00:00:26,240
a hidden team goes undercover.
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00:00:28,480 --> 00:00:30,080
Spy creatures.
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00:00:34,280 --> 00:00:37,680
The most innovative
undersea robots in the world.
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00:00:42,120 --> 00:00:45,160
They not only look like
the animals they film,
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00:00:45,160 --> 00:00:48,920
they interact with
them as no human can.
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00:00:54,080 --> 00:00:56,040
Equipped with hidden cameras...
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00:01:00,280 --> 00:01:03,840
..they reveal their
astonishing lives.
14
00:01:06,200 --> 00:01:09,800
As our spies join
their undersea world...
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00:01:09,800 --> 00:01:15,000
..they shed light on some
of the mysteries of the deep.
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00:01:21,680 --> 00:01:25,640
The ocean is a beautiful
and mysterious place
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00:01:25,640 --> 00:01:28,360
but as our spies discover,
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trouble can lie
just below the surface.
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00:01:36,720 --> 00:01:38,600
For a humpback calf,
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the first few months of life
are the most dangerous.
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And in the seas of French Polynesia,
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a mother with young
has a lot to worry about.
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Spy Humpback and Spy Dolphin
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00:01:55,920 --> 00:01:58,880
are discovering what
she fears the most.
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00:01:58,880 --> 00:02:01,320
WHALES MURMUR
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To avoid drawing attention,
they communicate only in whispers.
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MURMURING CONTINUES
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00:02:14,520 --> 00:02:18,160
Conversations picked
up by hydrophones in our spies.
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RUMBLING AND SQUEAKING
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Above, Spy Frigate is also on duty.
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It's soon clear a calf has
other ways to make a noise!
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Below, his splashes travel far.
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Our spies' hydrophones pick up
another sound...
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RUMBLING
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..a call not far away.
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Spy Dolphin investigates.
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A male humpback.
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WHALE SINGS
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He's what's known as a singer -
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00:03:14,880 --> 00:03:16,520
a male looking for a mate.
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00:03:19,800 --> 00:03:24,680
With the singer so close,
the calf should stay silent.
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00:03:24,680 --> 00:03:27,480
But like any youngster,
he can't keep still
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and certainly can't keep quiet.
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Spy Dolphin is
still with the singer.
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00:03:48,760 --> 00:03:53,320
The whale heard the leaps and sets
course to find where they came from.
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00:04:00,920 --> 00:04:04,480
Aware of the danger,
the mother guides her calf away.
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00:04:07,800 --> 00:04:09,600
But it's already too late.
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00:04:18,560 --> 00:04:21,960
The singer circles the
pair as they try to get away.
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00:04:29,400 --> 00:04:32,480
All the calf can do is
stay close to his mother,
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00:04:32,480 --> 00:04:35,080
but even this won't
keep him from harm.
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00:04:38,880 --> 00:04:41,080
The male wants to mate,
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and that's where the danger lies.
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She slaps him away...
54
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..and keeps herself
between him and her calf.
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He wouldn't knowingly harm her baby,
but courtship can be a rough affair.
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00:05:06,520 --> 00:05:09,760
As things escalate,
the calf stays even closer.
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It's about to get worse.
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00:05:17,120 --> 00:05:18,920
Other males are arriving.
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00:05:20,760 --> 00:05:23,320
They heard the singer's song,
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00:05:23,320 --> 00:05:25,040
now they've heard the commotion.
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The calf is in grave danger and
there's little his mother can do.
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As the whales circle,
there's no escape.
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00:05:45,840 --> 00:05:49,000
But the newcomers are
now the singer's rivals.
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00:05:51,440 --> 00:05:53,400
His warning - a bubble blast.
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But they aren't scared off easily.
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A second warning from the singer.
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A dangerous moment -
things could spiral out of control.
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The mother pushes her
calf to the surface,
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00:06:22,120 --> 00:06:24,240
protecting him as best she can.
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00:06:27,960 --> 00:06:30,760
The singer issues his
third and final warning.
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00:06:32,720 --> 00:06:35,960
He's bigger than any of them,
and ready to fight.
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The threat's enough
to drive the males away.
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The calf is now safe
to return to the water.
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00:07:02,920 --> 00:07:05,560
The singer's behaviour
seems to have changed.
75
00:07:08,880 --> 00:07:13,360
With his rivals gone,
he now keeps a respectful distance.
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00:07:13,360 --> 00:07:15,200
Accepted by the mother,
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he'll stay by their side
and protect them from danger.
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00:07:22,800 --> 00:07:27,560
In return, one day he should
win the mother's affections.
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00:07:34,600 --> 00:07:38,680
Until then, he'll be their escort.
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00:07:46,960 --> 00:07:50,520
On this remote
island in the South Atlantic,
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there's trouble on the beaches.
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00:07:56,360 --> 00:08:00,080
Each year, South Georgia
is invaded by elephant seals.
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00:08:01,240 --> 00:08:04,240
They are the
heavyweights of the seal world.
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For a pup, it's a
tough place to be born.
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Fighting is all around.
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GRUNTING
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The pup is blissfully
unaware of the risks he's facing.
88
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It takes a battle-hardened
spy to survive here.
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Bouldercam - a souped-up version
of the first spycam ever made.
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00:08:35,560 --> 00:08:37,440
SEALS SNORT
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Its rock-hard exterior
offers some protection
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from these mountains of blubber.
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00:08:56,840 --> 00:09:00,120
The pup's only
defence is his mother.
94
00:09:06,600 --> 00:09:12,040
But despite the current calm, she
can't stop danger coming to them.
95
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The Beachmaster -
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the largest seal in the colony
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and the father of the pups.
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GRUNTING
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00:09:24,000 --> 00:09:25,920
Weighing nearly 4 tonnes,
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he's ten times heavier than the
females...
101
00:09:33,080 --> 00:09:35,280
..and doesn't know his own weight!
102
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He has plenty else to worry about...
103
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..such as a male cavorting
with one of his females.
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Not the wisest move.
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An outrage for the Beachmaster...
106
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..a danger for the pup.
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SQUEALING
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He has nowhere to hide.
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00:10:23,040 --> 00:10:25,040
When 8 tonnes collide,
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the risk is for those
who are in the way.
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00:10:30,240 --> 00:10:33,480
This time, it's an easy
win for the Beachmaster.
112
00:10:37,320 --> 00:10:42,120
But this clash of the titans
separated the pup from his mother.
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If he doesn't find her soon,
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he won't survive.
115
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Approach the wrong mother
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and you learn the hard way.
117
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PUP SQUEALS
118
00:10:58,080 --> 00:11:00,720
But he still tries each in turn.
119
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Just when it seems things
couldn't get any worse,
120
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a skua arrives.
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00:11:13,880 --> 00:11:15,400
PUP BARKS
122
00:11:25,960 --> 00:11:27,760
But this pup is a fighter...
123
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..and won't give up.
124
00:11:36,560 --> 00:11:38,520
Then a familiar figure...
125
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..the Beachmaster fresh from battle.
126
00:11:45,800 --> 00:11:48,120
Approaching him could be
a big mistake.
127
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DRAMATIC MUSIC PLAYS
128
00:12:00,960 --> 00:12:04,120
But the Beachmaster has a more
sensitive side.
129
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TENDER MUSIC PLAYS
130
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BEACHMASTER GRUNTS
131
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A father and son moment.
132
00:12:24,680 --> 00:12:28,880
He may be welcoming, but
beachmasters have other priorities.
133
00:12:31,360 --> 00:12:32,720
Like snoozing.
134
00:12:39,240 --> 00:12:40,880
But could there be hope?
135
00:12:42,000 --> 00:12:46,520
After the fight, the Beachmaster
returned to the mother.
136
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A reunion against the odds.
137
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A tender moment
in an inhospitable land.
138
00:13:08,280 --> 00:13:12,480
In the colony,
harmony briefly restored.
139
00:13:15,560 --> 00:13:18,440
Wherever serenity seems to reign,
140
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trouble is rarely far away.
141
00:13:22,040 --> 00:13:24,840
And finding food is
often at the heart of it.
142
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To find a creature
with a killer solution,
143
00:13:29,680 --> 00:13:33,160
Spy Crab embarks on
a dangerous mission.
144
00:13:36,480 --> 00:13:39,880
It's after a creature
with a fearsome reputation.
145
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Plumes of sand are the giveaway.
146
00:13:53,280 --> 00:13:57,480
Spy Crab risks all by
taking a closer look.
147
00:14:13,840 --> 00:14:15,560
It's wise to be cautious.
148
00:14:23,120 --> 00:14:26,280
For this creature in
hiding has deadly powers.
149
00:14:31,000 --> 00:14:33,440
It's a peacock mantis shrimp.
150
00:14:34,840 --> 00:14:36,960
Despite its size,
151
00:14:36,960 --> 00:14:39,320
it packs a killer punch.
152
00:14:45,760 --> 00:14:47,360
This was just a warning.
153
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Best stay back.
154
00:14:54,760 --> 00:14:57,440
Fortunately,
the mantis has a job to do.
155
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A spot of housekeeping.
156
00:15:10,600 --> 00:15:13,480
His next task is to find food.
157
00:15:15,240 --> 00:15:19,520
While he's away, his lifelong
partner guards the nest.
158
00:15:21,080 --> 00:15:22,960
She's carrying their eggs.
159
00:15:26,200 --> 00:15:28,960
So it's up to her mate
to bring home a meal.
160
00:15:36,960 --> 00:15:40,360
Spy Crab will join him to
find out how he catches it.
161
00:15:43,240 --> 00:15:46,400
The mantis hunts with
cunning and initiative.
162
00:15:52,040 --> 00:15:55,880
He uses the coral as
cover to stage an ambush.
163
00:16:04,240 --> 00:16:08,400
He's helped by the most
complex eyes of any creature.
164
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They see colours
invisible to most other life.
165
00:16:12,600 --> 00:16:16,560
They even move independently,
useful for targeting prey.
166
00:16:21,440 --> 00:16:23,480
He aims to take it by surprise.
167
00:16:26,000 --> 00:16:28,360
Our spy moves in for a closer angle.
168
00:16:47,440 --> 00:16:48,760
This is the moment.
169
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He strikes!
170
00:16:53,360 --> 00:16:55,320
The most powerful
punch in the world.
171
00:16:58,080 --> 00:17:00,200
Faster than a bullet from a gun.
172
00:17:01,360 --> 00:17:04,360
A force 1,700 times his weight.
173
00:17:06,560 --> 00:17:08,760
Even the locals seem impressed!
174
00:17:13,800 --> 00:17:17,360
With his victim out cold,
he carries it home.
175
00:17:33,080 --> 00:17:36,400
Spy Crab dares to move closer.
176
00:17:39,000 --> 00:17:42,000
It's a meal that will
last them for days.
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00:17:54,280 --> 00:17:56,520
After a bit of dismantling,
178
00:17:56,520 --> 00:17:58,640
shell fragments are discarded.
179
00:18:05,800 --> 00:18:08,800
It's tempting to move closer still.
180
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WHIMSICAL MUSIC PLAYS
181
00:18:11,160 --> 00:18:12,520
But is this wise?
182
00:18:19,560 --> 00:18:21,920
Our spy is a crab, after all!
183
00:18:33,120 --> 00:18:35,120
You can't say it wasn't warned.
184
00:18:48,440 --> 00:18:51,200
For ingenious ways of catching prey,
185
00:18:51,200 --> 00:18:53,160
few can beat a mantis shrimp.
186
00:18:54,760 --> 00:18:58,960
But even the greatest hunters
can find themselves in trouble.
187
00:19:00,840 --> 00:19:04,720
This Galapagos sealion has
the odds stacked against him.
188
00:19:06,800 --> 00:19:10,920
The rest of his hunting team have
been killed by a pod of orcas.
189
00:19:12,680 --> 00:19:16,360
Not only that,
in the fighting, he lost an eye.
190
00:19:19,320 --> 00:19:21,760
But every day,
he still needs to feed.
191
00:19:23,880 --> 00:19:25,960
To see the challenges he faces,
192
00:19:25,960 --> 00:19:28,320
Spy Frigate is deployed once more.
193
00:19:29,520 --> 00:19:32,880
Spy Sealion captures
the view from below.
194
00:19:35,000 --> 00:19:36,920
Despite his problems,
195
00:19:36,920 --> 00:19:38,840
the sealion is fit and healthy.
196
00:19:46,600 --> 00:19:49,840
But he's after one of the
most challenging fish of all.
197
00:19:51,920 --> 00:19:53,440
A tuna.
198
00:19:55,480 --> 00:19:57,800
To hunt it alone
is almost impossible.
199
00:20:00,680 --> 00:20:03,120
Our spies will see how he fares.
200
00:20:08,200 --> 00:20:11,480
Without his team behind him,
it's all down to him,
201
00:20:11,480 --> 00:20:13,800
with our spy just an observer.
202
00:20:16,960 --> 00:20:19,960
His best hope is to trap
it against the rocks.
203
00:20:30,240 --> 00:20:32,160
But as soon as it's cornered,
204
00:20:32,160 --> 00:20:33,400
it finds a way out.
205
00:20:34,680 --> 00:20:35,920
The chase goes on.
206
00:20:38,480 --> 00:20:40,280
Again, he has it trapped...
207
00:20:48,000 --> 00:20:50,200
..again, it breaks free.
208
00:20:55,920 --> 00:20:58,120
The sealion cuts off its escape.
209
00:21:02,880 --> 00:21:05,240
Spy Sealion picks up the chase.
210
00:21:11,720 --> 00:21:13,600
Once more, it's cornered.
211
00:21:19,560 --> 00:21:21,560
Once more, it escapes.
212
00:21:27,640 --> 00:21:32,480
It's now a test of endurance,
and the sealion is tiring.
213
00:21:32,480 --> 00:21:35,400
But it's not his only problem.
214
00:21:35,400 --> 00:21:37,000
A Galapagos shark...
215
00:21:39,360 --> 00:21:40,760
..and not just one!
216
00:21:43,720 --> 00:21:45,600
They aim to steal his catch.
217
00:21:48,680 --> 00:21:50,120
He drives them away...
218
00:21:51,200 --> 00:21:52,560
..and is back in pursuit.
219
00:22:07,640 --> 00:22:09,960
Our spy is in the heart
of the action...
220
00:22:09,960 --> 00:22:11,760
SUSPENSEFUL MUSIC PLAYS
221
00:22:16,360 --> 00:22:18,760
..with the overview captured above.
222
00:22:22,840 --> 00:22:25,360
Close but not close enough.
223
00:22:32,080 --> 00:22:33,480
Then...he has it...
224
00:22:39,760 --> 00:22:41,480
..and drags it to the shallows.
225
00:22:44,840 --> 00:22:46,360
But it's not over.
226
00:22:48,600 --> 00:22:51,200
It's what the sharks
were waiting for.
227
00:22:58,440 --> 00:23:00,400
The sealion is outnumbered.
228
00:23:02,600 --> 00:23:04,320
They steal his tuna away.
229
00:23:08,080 --> 00:23:09,960
But the sealion won't give up.
230
00:23:13,960 --> 00:23:15,160
He steals it back!
231
00:23:19,760 --> 00:23:22,360
And takes what's left to the rocks.
232
00:23:25,440 --> 00:23:28,440
With the tuna out of reach,
the sharks retreat.
233
00:23:31,320 --> 00:23:35,400
His sheer tenacity made
the impossible possible.
234
00:23:37,480 --> 00:23:40,400
Tomorrow, he'll have
to do it all over again.
235
00:23:47,480 --> 00:23:49,560
If you're looking for trouble,
236
00:23:49,560 --> 00:23:52,400
the coast of California
is the place to be.
237
00:23:58,000 --> 00:24:00,920
Here lives
the Sarcastic Fringehead.
238
00:24:02,440 --> 00:24:07,120
Better known for its aggression
rather than its sarcastic nature.
239
00:24:13,080 --> 00:24:15,560
But he does use
his mouth as a weapon.
240
00:24:17,880 --> 00:24:19,840
A way to guard his home.
241
00:24:31,520 --> 00:24:33,640
A new spy is up for the challenge.
242
00:24:39,240 --> 00:24:41,760
Its subject of interest is close by.
243
00:24:49,800 --> 00:24:54,000
As our spy approaches,
it films his threat display.
244
00:24:59,320 --> 00:25:01,520
This is what a rival sees.
245
00:25:06,840 --> 00:25:09,360
Our spy's no match
for the real thing.
246
00:25:15,560 --> 00:25:18,400
Another fringehead
is seeking a new home.
247
00:25:22,600 --> 00:25:25,480
But this one is
considerably smaller than our spy.
248
00:25:27,920 --> 00:25:30,080
He soon has second thoughts.
249
00:25:34,360 --> 00:25:36,560
He tries the neighbour instead.
250
00:25:36,560 --> 00:25:38,520
SUSPENSEFUL MUSIC PLAYS
251
00:25:46,520 --> 00:25:49,560
Again, they use their
mouths as a threat.
252
00:25:53,080 --> 00:25:57,360
The neighbour's gape is
far bigger than his rival.
253
00:25:57,360 --> 00:25:59,800
And he's ready to
fight for his home.
254
00:26:23,920 --> 00:26:25,880
He sees off the competition...
255
00:26:30,760 --> 00:26:32,560
..and returns to his burrow.
256
00:26:34,880 --> 00:26:36,480
Safe once more.
257
00:26:41,400 --> 00:26:43,680
The loser is still searching.
258
00:26:46,080 --> 00:26:48,240
He finds a vacant home...
259
00:26:48,240 --> 00:26:50,040
WHIMSICAL MUSIC PLAYS
260
00:26:54,240 --> 00:26:55,600
..or so he thought.
261
00:26:58,920 --> 00:27:01,400
An octopus was already in residence.
262
00:27:07,480 --> 00:27:10,760
Eviction over, he finally moves in.
263
00:27:14,920 --> 00:27:16,600
Back with the winner,
264
00:27:16,600 --> 00:27:20,080
our spy discovers
why he's so defensive.
265
00:27:22,680 --> 00:27:25,200
He's guarding eggs
his mate has laid.
266
00:27:29,680 --> 00:27:32,520
Fanning them keeps
them well oxygenated.
267
00:27:37,320 --> 00:27:39,760
Spy Fringehead will leave him to it.
268
00:27:45,240 --> 00:27:47,600
But things aren't over for our spy.
269
00:27:49,120 --> 00:27:52,120
A crab is curious
about this new fringehead.
270
00:27:54,600 --> 00:27:55,920
Could it be food?
271
00:28:08,880 --> 00:28:12,000
But our spy can be a big mouth too.
272
00:28:14,880 --> 00:28:17,560
Enough to keep the crab at bay!
273
00:28:32,320 --> 00:28:36,680
Life on the beach isn't always
the paradise it's cracked up to be.
274
00:28:39,840 --> 00:28:42,960
When hermit crabs gather
to swap their shells,
275
00:28:42,960 --> 00:28:46,960
things can go very wrong,
very quickly.
276
00:28:46,960 --> 00:28:50,280
Spy Hermit Crab is back
to find out the trouble
277
00:28:50,280 --> 00:28:51,920
they sometimes get into.
278
00:28:53,760 --> 00:28:55,520
When things go to plan,
279
00:28:55,520 --> 00:28:59,080
they line up in order of
size and the swap begins.
280
00:28:59,080 --> 00:29:03,240
But leaving one shell
and entering the next is tricky.
281
00:29:06,840 --> 00:29:10,000
This crab has missed
the new shell completely!
282
00:29:16,240 --> 00:29:18,720
And someone's taken
the one he was after.
283
00:29:22,120 --> 00:29:24,000
She won't be giving it back!
284
00:29:27,360 --> 00:29:29,560
Left naked and exposed,
285
00:29:29,560 --> 00:29:31,320
he's in serious danger.
286
00:29:37,640 --> 00:29:40,160
At the worst possible time,
287
00:29:40,160 --> 00:29:42,680
a ruddy turnstone arrives.
288
00:29:46,640 --> 00:29:50,680
An unfortunate name, and no
fun for the hermit crabs either!
289
00:29:57,720 --> 00:30:01,680
Their best defence is
to hide in their shells.
290
00:30:01,680 --> 00:30:03,520
TURNSTONE CHIRPS
291
00:30:09,160 --> 00:30:12,000
An option not
available to the naked crab.
292
00:30:16,560 --> 00:30:19,560
For the rest,
it's everyone for themselves.
293
00:30:19,560 --> 00:30:21,520
CHIRPING
294
00:30:32,600 --> 00:30:34,760
Fortunately for the naked crab,
295
00:30:34,760 --> 00:30:38,240
the turnstones are still
focused on the gathering.
296
00:30:38,240 --> 00:30:39,720
CHIRPING
297
00:30:45,320 --> 00:30:48,720
But these crabs have all
the protection they need.
298
00:30:50,120 --> 00:30:52,880
It's those that don't
who are in trouble.
299
00:31:01,200 --> 00:31:03,720
The naked crab must
think on its feet.
300
00:31:03,720 --> 00:31:05,560
WHIMSICAL MUSIC PLAYS
301
00:31:11,360 --> 00:31:14,040
His solution is certainly
innovative!
302
00:31:18,560 --> 00:31:22,000
He's found the cap
of a sunscreen bottle.
303
00:31:24,520 --> 00:31:26,640
It's not the perfect solution.
304
00:31:28,920 --> 00:31:33,240
It isn't a good fit and will
act like a greenhouse in the sun.
305
00:31:41,120 --> 00:31:44,680
What he really needs
is in short supply.
306
00:31:51,640 --> 00:31:52,920
Could he be in luck?
307
00:31:54,400 --> 00:31:57,600
He's happened on a shell exchange
308
00:31:57,600 --> 00:32:00,080
and takes his place in the queue.
309
00:32:02,440 --> 00:32:04,200
Or rather tries to jump it!
310
00:32:07,960 --> 00:32:09,720
And comes away with nothing.
311
00:32:10,720 --> 00:32:12,760
But what's this?
312
00:32:12,760 --> 00:32:14,880
A shell far from the crowd,
313
00:32:14,880 --> 00:32:17,720
with just Spy Hermit Crab on guard.
314
00:32:23,080 --> 00:32:25,080
Has he found himself a home?
315
00:32:34,200 --> 00:32:35,680
It's an easy fit.
316
00:32:37,440 --> 00:32:40,680
Now he has the protection he needs,
317
00:32:40,680 --> 00:32:44,720
the ruddy turnstones
must look elsewhere.
318
00:32:49,240 --> 00:32:52,280
While hermit crabs must
fend for themselves,
319
00:32:52,280 --> 00:32:54,400
others face trouble together.
320
00:32:55,480 --> 00:32:58,040
Swathes of kelp and sea grass
321
00:32:58,040 --> 00:33:01,280
draw visitors to
America's Pacific Northwest.
322
00:33:05,120 --> 00:33:07,560
Pacific herring come here to spawn.
323
00:33:12,400 --> 00:33:14,920
They arrive in astonishing numbers.
324
00:33:21,080 --> 00:33:24,880
Spy Bald Eagle captures the
true scale of the spectacle.
325
00:33:27,160 --> 00:33:30,520
They are here in their millions.
326
00:33:36,800 --> 00:33:39,280
Joining them is
another spy creature.
327
00:33:40,880 --> 00:33:43,480
With its fish-like
movement and onboard camera,
328
00:33:43,480 --> 00:33:45,560
it homes in on the shoals.
329
00:33:55,520 --> 00:33:57,520
As Spy Herring nears,
330
00:33:57,520 --> 00:33:59,600
it detects a strange sound...
331
00:33:59,600 --> 00:34:01,520
CLICKING
332
00:34:01,520 --> 00:34:04,200
..and slips into
the shoal unnoticed.
333
00:34:11,520 --> 00:34:13,960
The clicking is made by the herring.
334
00:34:19,840 --> 00:34:23,320
As the shoals build, so do
the clicks.
335
00:34:33,240 --> 00:34:36,720
They're from bubbles squeezed
from their swim bladders.
336
00:34:41,720 --> 00:34:47,080
A flatulence thought to guide others
following in their wake.
337
00:34:47,080 --> 00:34:49,840
The most experienced
herring lead the way.
338
00:34:53,760 --> 00:34:56,760
The commotion soon
attracts predators.
339
00:35:03,960 --> 00:35:07,040
Sealions herd the
herring toward the shore.
340
00:35:08,280 --> 00:35:11,520
Spy Bald Eagle shows
their technique in action.
341
00:35:17,160 --> 00:35:20,760
They trap them in the shallows,
where they're easier to pick off.
342
00:35:25,120 --> 00:35:27,320
The survivors head for the kelp.
343
00:35:28,800 --> 00:35:30,840
Here, they'll lay their eggs.
344
00:35:33,920 --> 00:35:36,520
Soon, the kelp
is completely covered.
345
00:35:38,880 --> 00:35:42,760
They race to finish laying
before the sealions take them.
346
00:35:42,760 --> 00:35:44,680
DRAMATIC MUSIC PLAYS
347
00:35:55,600 --> 00:35:57,560
There's more trouble ahead.
348
00:36:05,960 --> 00:36:09,440
Surf scoters time their
arrival to feed on the eggs.
349
00:36:11,680 --> 00:36:15,400
The ducks can dive 20 metres
as they take what they can.
350
00:36:25,520 --> 00:36:28,440
Six million eggs
smother every square metre.
351
00:36:30,000 --> 00:36:34,120
Enough for billions upon billions
to survive the onslaught.
352
00:36:45,080 --> 00:36:47,760
Having also run the gauntlet
of the sealions,
353
00:36:47,760 --> 00:36:49,520
the males take over.
354
00:36:53,280 --> 00:36:55,000
As they fertilise the eggs,
355
00:36:55,000 --> 00:36:57,080
their milt clouds the bay.
356
00:36:58,880 --> 00:37:02,040
Spy Herring is vanishing from view.
357
00:37:13,480 --> 00:37:16,120
Above, a clear and
beautiful scene...
358
00:37:21,280 --> 00:37:25,320
..the sea turned turquoise
by the spawning males.
359
00:37:31,280 --> 00:37:34,920
While herring confront
danger with sheer numbers,
360
00:37:34,920 --> 00:37:37,720
cuttlefish rely on subterfuge.
361
00:37:39,440 --> 00:37:43,080
They need to. They spend
their lives under fire.
362
00:37:46,600 --> 00:37:48,880
But they are experts at disguise.
363
00:37:55,080 --> 00:37:58,520
For Spy Cuttlefish,
a new investigation.
364
00:38:04,040 --> 00:38:07,080
As well as creating
patterns to communicate,
365
00:38:07,080 --> 00:38:09,360
they use them for camouflage too.
366
00:38:12,040 --> 00:38:14,040
Just as well...
367
00:38:14,040 --> 00:38:17,440
..New Zealand fur seals
are an ever present danger.
368
00:38:22,160 --> 00:38:25,560
As they go on the hunt,
Spy Seal is among them.
369
00:38:33,400 --> 00:38:35,800
To escape their beady eye,
370
00:38:35,800 --> 00:38:37,800
cuttlefish have some tricks to play.
371
00:38:46,840 --> 00:38:51,840
Under the skin, muscles
contract and cause it to rise.
372
00:38:51,840 --> 00:38:54,400
These papillae
break up their outline.
373
00:38:57,360 --> 00:39:01,480
Add some colour changing
and he soon blends in.
374
00:39:04,120 --> 00:39:06,320
Enough to fool the fur seal.
375
00:39:09,440 --> 00:39:12,040
A truly life-saving transformation.
376
00:39:17,000 --> 00:39:19,600
All our spy can do is hide...
377
00:39:21,600 --> 00:39:24,840
..while cuttlefish
vanish before its camera eyes.
378
00:39:29,080 --> 00:39:32,160
But it only works for those
who see the seal coming.
379
00:39:41,560 --> 00:39:42,960
He spots it too late.
380
00:39:46,480 --> 00:39:48,360
The seal doesn't hesitate.
381
00:39:49,920 --> 00:39:53,800
All the cuttlefish can do is
release an inky smokescreen.
382
00:39:55,760 --> 00:39:57,560
The seal tries to stun him.
383
00:39:59,880 --> 00:40:02,720
But he has another secret weapon.
384
00:40:02,720 --> 00:40:04,600
Jet propulsion!
385
00:40:07,920 --> 00:40:10,640
Then hide among the ink clouds.
386
00:40:15,840 --> 00:40:17,360
But it's not over...
387
00:40:18,800 --> 00:40:19,880
..grabbed again.
388
00:40:21,400 --> 00:40:22,680
More ink clouds...
389
00:40:26,360 --> 00:40:27,920
..more battering.
390
00:40:27,920 --> 00:40:29,800
DRAMATIC MUSIC PLAYS
391
00:40:36,560 --> 00:40:39,720
This time, the ink clouds worked.
392
00:40:42,600 --> 00:40:48,080
Then amazingly, he morphs
into the surrounding seaweed.
393
00:40:54,320 --> 00:40:56,760
To the seal, he's totally vanished.
394
00:41:03,320 --> 00:41:07,000
Being attacked by predators
is an occupational hazard
395
00:41:07,000 --> 00:41:08,520
for many of our spies.
396
00:41:12,680 --> 00:41:16,840
In Indonesia, Spy Pufferfish is
a frequent target!
397
00:41:16,840 --> 00:41:18,280
SINISTER MUSIC PLAYS
398
00:41:36,320 --> 00:41:38,600
But it's found an escape route...
399
00:41:42,640 --> 00:41:45,040
..a secret channel
that leads inland.
400
00:41:51,680 --> 00:41:54,320
Only a few jellyfish
find their way through.
401
00:41:58,000 --> 00:42:03,160
They are making a journey that
others made thousands of years ago.
402
00:42:03,160 --> 00:42:08,600
It leads to an inland lake that
now has just one link to the sea.
403
00:42:12,200 --> 00:42:14,480
All who enter are trapped.
404
00:42:22,160 --> 00:42:24,480
But is it a blessing in disguise?
405
00:42:26,600 --> 00:42:30,280
Here, they left
their predators behind.
406
00:42:30,280 --> 00:42:33,320
Over generations,
they even lost their sting.
407
00:42:42,720 --> 00:42:46,640
What was once a prison
is now a paradise.
408
00:42:54,960 --> 00:42:59,560
Under the right conditions,
they appear in huge numbers.
409
00:43:13,600 --> 00:43:16,240
With no predators to take them,
410
00:43:16,240 --> 00:43:18,520
they multiply in their thousands.
411
00:43:28,440 --> 00:43:31,360
Each day, the sun
draws them to the surface
412
00:43:31,360 --> 00:43:33,840
to feed on the
plankton gathering there.
413
00:43:39,640 --> 00:43:42,360
As the sun goes down,
414
00:43:42,360 --> 00:43:43,760
they return to the depths.
415
00:44:03,120 --> 00:44:05,280
In this isolated lake,
416
00:44:05,280 --> 00:44:07,800
what once seemed like trouble,
417
00:44:07,800 --> 00:44:10,880
ultimately became
a way to escape it.
418
00:44:24,600 --> 00:44:29,920
Today, on the shores of Mexico,
there's no refuge from predators.
419
00:44:29,920 --> 00:44:33,720
To find out more needs a spy
that fits in with the locals.
420
00:44:42,880 --> 00:44:45,160
The crabs are a pugnacious bunch.
421
00:44:47,720 --> 00:44:51,360
Despite the size difference,
they stand up to our spy.
422
00:44:55,320 --> 00:44:57,440
But it isn't here to film crabs.
423
00:44:59,920 --> 00:45:01,960
It's the highest tide of the month,
424
00:45:01,960 --> 00:45:03,800
and the tide is turning.
425
00:45:06,720 --> 00:45:09,080
Time for the crabs to seek shelter.
426
00:45:10,200 --> 00:45:14,760
Our spy is about to witness
an extraordinary event.
427
00:45:18,840 --> 00:45:21,360
The first arrivals are already here.
428
00:45:27,360 --> 00:45:31,320
They're the frontrunners
of what will become an invasion.
429
00:45:34,160 --> 00:45:36,200
Our crab is not filming alone.
430
00:45:38,960 --> 00:45:42,520
Spy Pelican is already
capturing what's happening.
431
00:45:44,360 --> 00:45:49,200
These are grunion - fish with
an extraordinary way of spawning.
432
00:45:56,240 --> 00:45:58,360
It's a race against the tide...
433
00:46:00,080 --> 00:46:03,320
..for grunion lay their
eggs on the high tide line.
434
00:46:05,880 --> 00:46:08,560
Just once a month
does it reach this far.
435
00:46:11,040 --> 00:46:15,560
By laying in the sand, their eggs
are safe from predators in the sea.
436
00:46:26,280 --> 00:46:28,600
The females use their
tails to drill deep.
437
00:46:32,920 --> 00:46:34,760
The males coil around them,
438
00:46:34,760 --> 00:46:37,360
fertilising
the eggs as they're laid.
439
00:46:40,920 --> 00:46:42,440
By spawning together,
440
00:46:42,440 --> 00:46:45,200
each reduces its
chances of being eaten.
441
00:46:47,520 --> 00:46:51,560
Spy Pelican has already
been joined by a hungry flock.
442
00:46:54,200 --> 00:46:56,560
It's now part of a fishing party...
443
00:46:56,560 --> 00:46:58,160
SQUAWKING
444
00:47:01,280 --> 00:47:03,320
..one that's growing in size...
445
00:47:08,040 --> 00:47:10,400
..just as spawning reaches its peak.
446
00:47:15,080 --> 00:47:18,440
The grunion must lay their
eggs before the tide turns.
447
00:47:19,640 --> 00:47:23,120
But time is running out
and they've nowhere to hide.
448
00:47:29,920 --> 00:47:33,160
For the pelicans,
it's an all-you-can-eat buffet.
449
00:47:34,880 --> 00:47:36,360
At least it should be!
450
00:47:41,200 --> 00:47:43,840
But despite the feast
laid out before them,
451
00:47:43,840 --> 00:47:46,400
their bill is now their handicap.
452
00:47:48,120 --> 00:47:50,080
It wasn't designed for this.
453
00:47:52,960 --> 00:47:55,720
What scoops up shoals in the sea
454
00:47:55,720 --> 00:47:57,640
is useless on the sand.
455
00:47:59,520 --> 00:48:01,400
But as the tide retreats,
456
00:48:01,400 --> 00:48:02,840
so do the grunion.
457
00:48:04,640 --> 00:48:07,560
This is what the
pelicans were waiting for.
458
00:48:13,880 --> 00:48:16,920
In deeper water,
the fish are easy game.
459
00:48:20,800 --> 00:48:22,360
The onslaught begins.
460
00:48:22,360 --> 00:48:24,240
DRAMATIC MUSIC PLAYS
461
00:48:41,040 --> 00:48:43,240
Then, on its own accord,
462
00:48:43,240 --> 00:48:45,240
Spy Pelican takes a dive.
463
00:48:52,120 --> 00:48:54,360
A catastrophic malfunction.
464
00:49:05,720 --> 00:49:08,320
Our crab is now the
last spy standing.
465
00:49:10,000 --> 00:49:13,120
It captures the last
grunion returning to the sea,
466
00:49:13,120 --> 00:49:15,440
having left their
legacy in the sand.
467
00:49:18,120 --> 00:49:21,600
The eggs they leave will
hatch on the next high tide.
468
00:49:25,360 --> 00:49:27,320
As the tide retreats,
469
00:49:27,320 --> 00:49:29,480
it gives back what it's taken.
470
00:49:30,960 --> 00:49:33,360
Our spies' mission is over.
471
00:49:35,800 --> 00:49:39,280
It looks like it's
Spy Pelican's last!
472
00:49:44,600 --> 00:49:47,240
Of all the problems
faced by ocean life,
473
00:49:47,240 --> 00:49:50,720
few are as
unpredictable as the weather.
474
00:49:55,640 --> 00:49:59,200
In the Galapagos,
sealions see it as an opportunity.
475
00:50:02,440 --> 00:50:04,880
Like dolphins, they surf the waves.
476
00:50:10,000 --> 00:50:13,000
For marine iguanas,
it's a test of survival.
477
00:50:16,040 --> 00:50:19,760
Whatever the weather,
they must face the waves to feed.
478
00:50:28,880 --> 00:50:31,360
Spy Iguana will
attempt to join them,
479
00:50:31,360 --> 00:50:33,720
despite the worsening condition.
480
00:50:47,520 --> 00:50:50,600
It won't be easy,
even the fish are in trouble.
481
00:50:58,760 --> 00:51:01,040
It's even harder for the iguanas.
482
00:51:04,080 --> 00:51:08,080
They must somehow feed,
without being washed away.
483
00:51:08,080 --> 00:51:10,880
Our spy also needs a foothold, fast.
484
00:51:16,520 --> 00:51:18,200
A little too fast!
485
00:51:27,800 --> 00:51:29,480
Secure for a moment,
486
00:51:29,480 --> 00:51:31,640
it can see how the
iguanas are coping.
487
00:51:36,600 --> 00:51:39,320
Their claws act like crampons,
488
00:51:39,320 --> 00:51:42,080
but they can only do so much.
489
00:51:42,080 --> 00:51:45,320
They must eat as fast as
they can, while they can.
490
00:51:59,040 --> 00:52:00,880
Even a turtle is struggling.
491
00:52:07,080 --> 00:52:10,400
One by one, the iguanas yield
to the swell.
492
00:52:36,840 --> 00:52:40,160
Those that give up the fight
head to the surface.
493
00:52:45,600 --> 00:52:48,440
Our spy hangs on with
the still undaunted.
494
00:52:54,000 --> 00:52:56,440
In the end, it's not up to our spy.
495
00:52:57,800 --> 00:53:00,000
The swell has the last say.
496
00:53:02,760 --> 00:53:06,160
As with all our spies,
it keeps filming till the end.
497
00:53:07,920 --> 00:53:09,080
THUD!
498
00:53:09,080 --> 00:53:10,120
CRACKLING
499
00:53:15,320 --> 00:53:19,840
In Indonesia, others too will
soon be weathering the storms.
500
00:53:23,720 --> 00:53:28,480
Spy Octopus discovers what happens
when it takes a turn for the worse.
501
00:53:34,680 --> 00:53:39,240
In calm conditions, the reef
is a place for relaxation...
502
00:53:39,240 --> 00:53:43,240
..and green turtles
certainly know how to chill out.
503
00:53:45,480 --> 00:53:48,760
Even Spy Octopus
hardly creates a stir.
504
00:53:49,960 --> 00:53:52,120
But conditions are changing...
505
00:53:55,160 --> 00:53:57,320
..and the swell is building.
506
00:54:02,920 --> 00:54:05,080
Our spy braves the growing storm
507
00:54:05,080 --> 00:54:07,840
to track down the
coconut octopus again.
508
00:54:10,240 --> 00:54:12,440
He's already in a spot of bother.
509
00:54:16,040 --> 00:54:18,800
Being small,
he can easily be swept away.
510
00:54:20,920 --> 00:54:23,400
He must find refuge - fast.
511
00:54:26,800 --> 00:54:29,320
Already, our spy is
feeling the swell.
512
00:54:32,600 --> 00:54:34,960
So, too, is a passing lionfish.
513
00:54:42,520 --> 00:54:44,800
The octopus finds cover of sorts.
514
00:54:47,720 --> 00:54:51,200
He can't be choosy.
A discarded sack will have to do.
515
00:54:56,200 --> 00:54:58,360
But was this the right decision?
516
00:55:08,160 --> 00:55:09,680
It seems not.
517
00:55:24,480 --> 00:55:26,280
He tries to hold it down...
518
00:55:34,160 --> 00:55:35,880
..but it's a losing battle.
519
00:55:42,080 --> 00:55:44,360
Spy Octopus is faring even worse.
520
00:55:49,000 --> 00:55:51,360
The octopus needs an alternative.
521
00:55:57,560 --> 00:56:00,880
What better than the
shelter that gives it its name?
522
00:56:04,160 --> 00:56:06,880
A coconut shell for
a coconut octopus.
523
00:56:07,960 --> 00:56:10,320
Something that will weigh it down.
524
00:56:13,720 --> 00:56:15,840
But our spy is still in trouble.
525
00:56:19,560 --> 00:56:21,680
What it needs is a helping hand.
526
00:56:31,160 --> 00:56:34,000
Or an arm, to be precise.
527
00:56:34,000 --> 00:56:35,560
WHIMSICAL MUSIC PLAYS
528
00:56:47,080 --> 00:56:50,520
A perfect way to
end their partnership.
529
00:57:00,640 --> 00:57:06,120
On their journeys,
our spies found many ocean wonders.
530
00:57:06,120 --> 00:57:08,600
They revealed their
emotional lives...
531
00:57:13,320 --> 00:57:17,080
..and their
extraordinary intelligence too.
532
00:57:17,080 --> 00:57:21,000
They also discovered
their social nature...
533
00:57:21,000 --> 00:57:23,600
..and even got into
trouble themselves.
534
00:57:24,520 --> 00:57:26,240
Wherever they went,
535
00:57:26,240 --> 00:57:29,360
they shed light on some
of the mysteries of the deep.
60695
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