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A jagged maze of rock and ice...
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00:00:21,080 --> 00:00:24,200
...where temperatures plunge to 40 below...
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00:00:26,360 --> 00:00:30,520
and brutal blizzards dump 30 feet of snow.
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00:00:33,000 --> 00:00:36,680
Winter in the Rockies
is not for the faint-hearted.
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00:00:40,160 --> 00:00:41,760
But for one creature...
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...it's the challenge he's built for.
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00:00:48,920 --> 00:00:51,080
Where we see treacherous slopes,
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this wolverine sees a playground.
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His thick fur sheds snow
like a winter jacket.
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00:01:08,040 --> 00:01:11,160
His claws dig in like climber's crampons.
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00:01:15,680 --> 00:01:18,560
He plows through
the most punishing winters...
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00:01:23,600 --> 00:01:26,480
with just a carefree shake of his coat.
13
00:01:31,280 --> 00:01:34,920
But mountain solitude has its downsides.
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There are few other animals around.
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00:01:44,360 --> 00:01:47,720
And for a hungry meat eater,
that is a challenge.
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He treks up to 20 miles in a day...
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searching for a meal above...
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00:02:04,280 --> 00:02:05,760
and below the snow.
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00:02:13,640 --> 00:02:16,600
But he needs
to keep an eye on the skies too.
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00:02:20,440 --> 00:02:25,680
Because the peaks above
hold a deadly threat.
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00:02:27,920 --> 00:02:34,000
After months of heavy snowfall,
the mountain is about to unload.
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A deluge of frozen violence.
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00:02:51,240 --> 00:02:54,280
Over three million cubic feet
of snow and ice...
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thundering down its peaks...
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00:03:01,680 --> 00:03:04,000
at up to 100 miles an hour.
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00:03:26,680 --> 00:03:29,920
For pretty much any creature
caught in its path,
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the roaring snow...
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...is the sound of death itself.
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00:03:42,200 --> 00:03:46,440
But for this lucky wolverine,
it's a dinner bell.
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He locks into a scent
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and sets to work.
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00:04:13,360 --> 00:04:17,200
An avalanche may be bad news
for an unlucky mountain goat...
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00:04:19,240 --> 00:04:22,440
but it's just what a hungry wolverine
has been counting on.
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00:04:26,560 --> 00:04:27,960
Disaster for some...
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00:04:31,360 --> 00:04:33,720
is salvation for him.
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00:04:41,200 --> 00:04:44,880
Because life doesn't just need
our planet's soft side.
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It also relies on its rage.
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{\an8}The most destructive forces on Earth
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{\an8}are the same forces
that bring our planet to life.
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00:05:18,800 --> 00:05:21,600
Volcanoes are great destroyers.
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00:05:24,320 --> 00:05:28,000
But they also release
vast amounts of steam.
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00:05:28,840 --> 00:05:33,840
So much so that our oceans
are now filled with water
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once locked in the Earth's interior.
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Their lava cools to create new land.
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None more precious than volcanic islands.
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00:05:56,040 --> 00:06:00,280
These remote archipelagos
churn the ocean's currents,
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00:06:02,120 --> 00:06:05,480
drawing up nutrient-rich waters
from the deep,
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00:06:06,600 --> 00:06:08,920
igniting an explosion of life.
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00:06:13,880 --> 00:06:15,040
Both above...
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00:06:17,240 --> 00:06:18,720
and below the waves.
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Volcanic islands form oases of life
in the Big Blue...
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00:06:34,480 --> 00:06:36,960
...for those who know where to find them.
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00:06:43,720 --> 00:06:47,440
This young hammerhead
is on her maiden voyage,
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traveling hundreds of miles
from her coastal nursery
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out into the vast Pacific.
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00:06:59,760 --> 00:07:02,400
She might not know where she's heading...
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but she has a guide.
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Her strange snout bristles with receptors
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that can detect the magnetic signature
of the volcanic seabed.
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00:07:28,960 --> 00:07:33,800
Cooled lava signposts her way
across the ocean.
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She only has to follow her nose
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and let instinct lead the way.
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Cocos Island,
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the peaks of an ancient volcano
rising 12,000 feet from the ocean floor.
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00:08:10,520 --> 00:08:11,960
And to her senses,
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it lights up like a magnetic beacon
in the wilderness.
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After a 300-mile journey,
she's earned a pit stop.
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So she sets her sights
on one particular Cocos resident.
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00:08:51,840 --> 00:08:54,240
But the shark isn't browsing the buffet.
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She's serving the snacks.
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00:09:07,520 --> 00:09:12,400
Her first ocean voyage
has left her riddled with parasites.
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Clouds of butterfly fish pick them off
and clean up her infected scars.
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Their nibbles are like a mini massage,
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keeping her calm
while they feed and help her heal.
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00:09:46,120 --> 00:09:47,960
And it's a timely service
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00:09:49,240 --> 00:09:54,400
because this volcanic wonderland
isn't just a shark spa.
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Other travelers have been drawn
to this special meeting place...
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forming a circling school hundreds strong.
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Scientists suspect that this gathering
is like the hammerhead summer ball...
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00:10:37,720 --> 00:10:38,920
where they relax...
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00:10:41,400 --> 00:10:42,480
socialize...
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and if they're lucky, find a mate.
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As this debutante joins the dance...
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it could be the start of a new journey
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towards motherhood.
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00:11:09,920 --> 00:11:15,040
A journey made possible
by underwater volcanic trails
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millions of years in the making.
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00:11:26,080 --> 00:11:28,080
Our oceans are still home
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to some of the planet's
most violent natural phenomena.
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00:11:35,600 --> 00:11:40,320
The sun's energy
burns most fiercely in the tropics
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00:11:41,480 --> 00:11:44,800
where much of its heat
is absorbed by the ocean.
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00:11:49,120 --> 00:11:52,800
But these warming seas
have a release valve.
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00:11:56,040 --> 00:12:01,560
Transferring their energy into the sky,
they vent their excess heat
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by feeding
the most devastating storms on Earth.
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Hurricanes.
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This growing monster
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00:12:21,040 --> 00:12:25,800
will transform the lives
of all those caught in its path.
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00:12:33,480 --> 00:12:35,080
In a Miami park,
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00:12:36,680 --> 00:12:40,400
one of America's
most fiercely territorial creatures...
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00:12:44,840 --> 00:12:46,400
...is marking his turf.
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00:12:55,760 --> 00:12:56,960
Anole lizard.
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Tough guy.
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00:13:02,120 --> 00:13:05,200
His push-ups show off his strength,
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00:13:06,480 --> 00:13:09,640
warning his rivals to keep off his tree.
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00:13:15,240 --> 00:13:19,480
So he gets more food and more females.
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00:13:25,440 --> 00:13:28,120
But not everyone is getting the message.
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00:13:35,080 --> 00:13:35,920
An intruder...
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00:13:38,080 --> 00:13:40,760
with his eye on the tough guy's tree.
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00:13:47,360 --> 00:13:49,640
Has he got the moves to muscle in?
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00:13:55,120 --> 00:13:56,120
Not bad.
111
00:13:59,080 --> 00:14:02,360
The tough guy
needs to show him who's boss.
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Behold.
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The ultimate lizard power move.
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But two can play at that game.
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00:14:26,960 --> 00:14:29,400
There's only one way to settle this.
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00:14:52,680 --> 00:14:54,360
But while they do battle...
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the mega storm is closing in.
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They bolt for the treetops...
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00:15:17,200 --> 00:15:19,680
to escape the inevitable flood.
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00:15:24,800 --> 00:15:26,880
As the storm makes landfall...
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anole lizards cling to high branches.
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Lose their grip,
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and they lose everything.
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00:15:54,120 --> 00:15:59,200
The tough guy's future
hangs by a fingernail.
125
00:16:09,160 --> 00:16:11,320
And his rival is struggling too.
126
00:16:27,760 --> 00:16:32,640
The champ has kept his grip
and his territory.
127
00:16:40,560 --> 00:16:41,840
In this battle...
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00:16:43,840 --> 00:16:45,800
only the strongest survive.
129
00:16:48,360 --> 00:16:50,200
But it's a fragile victory.
130
00:17:01,080 --> 00:17:06,000
Today, man-made climate change
is making hurricanes stronger
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00:17:07,920 --> 00:17:09,200
and more frequent.
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00:17:12,960 --> 00:17:18,640
Faced with this growing rage,
these lizards' bodies are changing.
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00:17:20,240 --> 00:17:23,640
Remarkably, over just a few generations,
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00:17:23,640 --> 00:17:28,680
they've evolved larger toe pads
to help them keep a stronger grip.
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00:17:35,240 --> 00:17:39,880
Where a warming climate will leave
these creatures, we don't yet know.
136
00:17:43,520 --> 00:17:49,080
But we do know that it is pushing
our weather to even greater extremes.
137
00:17:53,920 --> 00:17:58,800
While some places drown, others scorch.
138
00:18:00,760 --> 00:18:05,680
Growing deserts are changing the face
of entire continents.
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00:18:06,800 --> 00:18:09,160
All life must adapt
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00:18:10,560 --> 00:18:11,480
or die.
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00:18:16,040 --> 00:18:19,480
West Africa, south of the Sahara Desert.
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The wet season has grown erratic
and unpredictable.
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00:18:31,080 --> 00:18:33,960
Daytime highs of 110 degrees...
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00:18:36,280 --> 00:18:41,480
transform this thorny scrub
into an open-air oven.
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00:18:44,560 --> 00:18:46,960
Wildfires rip through the landscape...
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00:18:53,840 --> 00:18:56,680
leaving blackened skeletons in their wake.
147
00:19:04,760 --> 00:19:08,480
But one group won't give up
on their old home.
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00:19:21,520 --> 00:19:24,200
This baby is growing fast.
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00:19:29,880 --> 00:19:31,760
So she's always hungry.
150
00:19:35,240 --> 00:19:38,160
And if anyone can find food
in this wilderness,
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00:19:39,320 --> 00:19:40,880
it's her clever family.
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00:19:45,240 --> 00:19:49,600
There's a knack to extracting the seeds
from a woolly kapok fruit...
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even if they are a little dry.
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00:20:03,560 --> 00:20:07,680
To survive here,
she must use that big brain of hers.
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00:20:15,440 --> 00:20:18,480
She learns by example.
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00:20:22,880 --> 00:20:24,280
A promising student...
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00:20:26,560 --> 00:20:28,960
but still working on the basics.
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00:20:35,440 --> 00:20:39,280
Knowledge and skills
passed down through generations
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00:20:40,440 --> 00:20:45,880
have helped these survivors cling on
even in this desiccated landscape.
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00:20:49,800 --> 00:20:52,600
But the one thing they can't do without
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is safe drinking water.
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00:20:57,800 --> 00:21:02,000
And the most important lesson
is where to find it.
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00:21:14,920 --> 00:21:17,840
The riverbed is bone dry.
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00:21:30,360 --> 00:21:33,280
They may know
where the best fruit still grows,
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00:21:34,600 --> 00:21:38,440
but even her family
can't magic water out of the ground.
166
00:21:42,440 --> 00:21:46,520
But grandma has roamed
these plains for 40 dry seasons.
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If anyone can lead them
out of this, it's her.
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00:22:01,680 --> 00:22:04,000
And the family falls in behind.
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00:22:11,160 --> 00:22:13,360
Their home is drying out.
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00:22:18,680 --> 00:22:23,160
Habitat loss and poaching
have seen this species decline by 80%
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00:22:23,160 --> 00:22:24,840
in the last 30 years.
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00:22:28,000 --> 00:22:32,680
Today, survivors need to be smarter
and more adaptable than ever.
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00:22:48,560 --> 00:22:53,000
Grandma leads the troop to a water hole
that hasn't failed her yet.
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00:23:06,680 --> 00:23:12,640
But even this reliable oasis
has dried to a stagnant pool.
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00:23:16,800 --> 00:23:19,440
The water is undrinkable.
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Grandma digs a hole
near the edge of the pool.
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It starts to fill.
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Water filtered clean by the sand.
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The family joins in.
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00:24:18,880 --> 00:24:21,920
Grandma's wisdom has saved them.
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00:24:23,840 --> 00:24:27,600
And baby has learned
another crucial lesson for her future.
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As this part of Africa dries out...
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it has consequences for life far beyond.
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00:24:55,760 --> 00:24:58,360
Even on the other side of the planet.
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00:25:00,520 --> 00:25:01,880
As deserts grow,
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00:25:03,680 --> 00:25:07,880
they can pump ever more dust and sand
into the atmosphere...
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00:25:10,080 --> 00:25:14,560
where high-altitude winds
carry it into weather systems
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that spread across the globe.
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Towards the poles,
it settles on glaciers and ice caps.
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Dulling their sheen,
191
00:25:29,960 --> 00:25:32,600
absorbing more solar radiation...
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00:25:34,920 --> 00:25:37,640
and warming up their icy surroundings.
193
00:25:48,040 --> 00:25:50,080
The world's largest land predator
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has spent a hungry summer foraging
along the shoreline.
195
00:26:03,080 --> 00:26:04,920
Now the season is changing.
196
00:26:06,480 --> 00:26:08,320
He checks out the sea ice.
197
00:26:12,200 --> 00:26:15,560
He can only reach
the seals he'd rather prey on
198
00:26:15,560 --> 00:26:18,480
when it freezes hard enough
to support him.
199
00:26:22,120 --> 00:26:23,960
But this autumn is warm.
200
00:26:25,320 --> 00:26:27,520
And the sea ice is late.
201
00:26:33,120 --> 00:26:36,600
And he's not the only one hungry
for the chance to hunt.
202
00:26:41,080 --> 00:26:45,040
Hundreds of polar bears
gather on Canada's northern shores
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00:26:46,520 --> 00:26:48,160
to wait for the freeze-up.
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00:26:51,840 --> 00:26:53,640
For a curious adolescent,
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it's an irresistible chance
to test his strength.
206
00:27:07,840 --> 00:27:10,640
Either of these
thousand-pound heavyweights
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00:27:10,640 --> 00:27:12,560
could land a fatal blow...
208
00:27:14,880 --> 00:27:17,080
...if they were fighting for real.
209
00:27:25,960 --> 00:27:28,080
Sparring kills some time,
210
00:27:29,880 --> 00:27:31,400
but he's still hungry.
211
00:27:35,560 --> 00:27:39,880
There's only one place left
where he might find something to eat.
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He turns his back on the sea
and heads the other way.
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00:27:52,440 --> 00:27:53,280
Inland.
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00:27:54,840 --> 00:27:56,320
Towards the forest.
215
00:28:02,920 --> 00:28:05,200
Who knows what he might find here?
216
00:28:22,080 --> 00:28:22,920
Wolves.
217
00:28:25,440 --> 00:28:26,560
Pack hunters.
218
00:28:28,800 --> 00:28:31,280
They rule the northern forests.
219
00:28:36,240 --> 00:28:40,760
Patrolling their
thousand-square mile territory every day...
220
00:28:43,080 --> 00:28:47,440
in search of food and intruders.
221
00:29:05,560 --> 00:29:08,680
Wolves and polar bears
do not usually cross paths.
222
00:29:11,880 --> 00:29:15,160
But today, encounters are on the rise.
223
00:29:19,360 --> 00:29:22,440
A lone wolf is no match for a bear.
224
00:29:24,960 --> 00:29:27,480
But the pack is closing in.
225
00:29:33,960 --> 00:29:35,520
Who's top dog now?
226
00:29:38,080 --> 00:29:39,520
Are you a meal...
227
00:29:41,440 --> 00:29:42,880
...or a mortal threat?
228
00:30:08,440 --> 00:30:11,720
There's easier pickings
to be had elsewhere.
229
00:30:13,960 --> 00:30:18,560
By standing his ground,
this intrepid bear wins the day.
230
00:30:25,480 --> 00:30:28,760
Forced to spend more time
away from the sea ice,
231
00:30:29,280 --> 00:30:34,200
polar bears must figure out
their place in a strange new world.
232
00:30:41,560 --> 00:30:45,720
His gamble in wolf territory
has paid off this time.
233
00:30:49,080 --> 00:30:50,880
An abandoned moose carcass.
234
00:30:53,280 --> 00:30:57,280
Enough food to keep him going
until the sea freezes again.
235
00:31:03,080 --> 00:31:08,880
But not all creatures have the skills
to keep up with their fast-changing world.
236
00:31:14,440 --> 00:31:18,960
Climate change is creating
ever more extreme conditions,
237
00:31:20,680 --> 00:31:24,880
breaking fundamental connections
in the webs of life.
238
00:31:27,960 --> 00:31:29,920
And it's causing havoc...
239
00:31:32,240 --> 00:31:35,280
in ways that you'd least expect.
240
00:31:43,000 --> 00:31:46,800
Deep in the heart
of the Sierra Nevada Forest...
241
00:31:48,960 --> 00:31:52,600
this pine tree is under siege.
242
00:31:57,560 --> 00:31:58,560
Its foe,
243
00:31:59,680 --> 00:32:01,600
a western pine beetle.
244
00:32:07,240 --> 00:32:11,320
This tiny assassin searches
for a weakness...
245
00:32:14,800 --> 00:32:17,760
to drill in and lay her eggs.
246
00:32:24,680 --> 00:32:31,560
If she succeeds, her hungry larvae
will destroy the tree from the inside.
247
00:32:34,360 --> 00:32:36,480
But this isn't just a tree.
248
00:32:38,560 --> 00:32:40,600
It's a battle-ready fortress.
249
00:32:42,400 --> 00:32:46,560
Behind its barricades
flow hidden supply lines.
250
00:32:48,880 --> 00:32:53,960
A hundred gallons of rain water pump
from its roots to its crown every day.
251
00:32:58,640 --> 00:33:01,720
And this water powers
another line of defense.
252
00:33:05,240 --> 00:33:06,240
Resin.
253
00:33:07,720 --> 00:33:09,440
It flows to the breach.
254
00:33:11,200 --> 00:33:12,760
And repels the invader.
255
00:33:15,240 --> 00:33:20,480
She's programmed to keep drilling,
and a bit of liquid won't stop her.
256
00:33:23,680 --> 00:33:25,200
But the tree's resin...
257
00:33:27,080 --> 00:33:28,280
has another trick.
258
00:33:30,720 --> 00:33:31,920
As it dries,
259
00:33:33,200 --> 00:33:34,120
it hardens.
260
00:33:41,400 --> 00:33:44,360
Stopping even the most determined beetles...
261
00:33:49,160 --> 00:33:50,040
in their tracks.
262
00:33:54,400 --> 00:33:58,240
But the pines can't always mount
such a powerful defense.
263
00:34:00,160 --> 00:34:04,120
A changing climate
is seeing Pacific weather patterns
264
00:34:04,120 --> 00:34:05,560
shift to the north.
265
00:34:06,960 --> 00:34:10,480
Storms that once rained
on these Californian forests
266
00:34:11,000 --> 00:34:13,600
now hit the Canadian coast.
267
00:34:16,480 --> 00:34:22,160
In recent years, these trees received
just two-thirds of the usual rainfall.
268
00:34:25,720 --> 00:34:28,800
And without enough water
to keep their resin flowing...
269
00:34:33,000 --> 00:34:37,440
...the balance of power
has tipped in the beetles' favor.
270
00:34:39,440 --> 00:34:41,480
They breach the defenses...
271
00:34:43,880 --> 00:34:47,560
and their larvae
tunnel through the trees' supply lines...
272
00:34:51,960 --> 00:34:54,880
cutting off the water it needs to survive.
273
00:34:59,000 --> 00:35:01,400
It's the tree's last stand.
274
00:35:05,640 --> 00:35:07,200
In a silent scream...
275
00:35:09,240 --> 00:35:11,240
the forest is dying.
276
00:35:13,360 --> 00:35:15,960
All it takes is a single spark.
277
00:35:31,040 --> 00:35:36,000
A million acres burning at 2,000 degrees
for months on end.
278
00:35:39,960 --> 00:35:45,640
In some places more than 80%
of the dead trees fueling these fires
279
00:35:46,360 --> 00:35:50,080
is ponderosa pine killed by beetles.
280
00:35:56,120 --> 00:36:00,600
But even as burning forests paint
the San Francisco skies orange...
281
00:36:05,480 --> 00:36:08,760
...the trees have a glimmer of hope.
282
00:36:14,280 --> 00:36:18,080
They're starting a slow exodus
northwards to safety.
283
00:36:20,920 --> 00:36:24,000
Some at a rate of a mile
every three years.
284
00:36:27,080 --> 00:36:32,120
Pine trees now grow in latitudes
once too cold for them to survive.
285
00:36:36,000 --> 00:36:37,960
As the tree line moves north
286
00:36:39,800 --> 00:36:42,880
it opens up opportunities
for others to follow...
287
00:36:45,600 --> 00:36:48,840
which could have
surprising consequences for us all.
288
00:36:58,960 --> 00:37:03,720
{\an8}This pair of intrepid beavers
are following the march of the trees,
289
00:37:05,320 --> 00:37:09,760
{\an8}pioneering further north
than any other beaver before them.
290
00:37:17,840 --> 00:37:20,400
As far as the Alaskan tundra.
291
00:37:24,360 --> 00:37:30,600
And this new neighborhood now provides
everything they need to get busy.
292
00:37:39,960 --> 00:37:44,080
They must build
their brand-new lodge and dam.
293
00:37:47,240 --> 00:37:48,280
By tooth...
294
00:37:51,560 --> 00:37:52,920
and by paw.
295
00:38:00,160 --> 00:38:02,360
In just a few short months,
296
00:38:02,360 --> 00:38:07,400
these meadows will be locked
in the frozen grip of an Arctic winter.
297
00:38:13,920 --> 00:38:19,080
To survive this far north,
their dam needs careful construction.
298
00:38:21,360 --> 00:38:25,600
Hold back too much water,
and it could drown their lodge.
299
00:38:28,200 --> 00:38:33,760
Too little, and their pond
will freeze solid, trapping them inside.
300
00:38:36,200 --> 00:38:39,000
It's a delicate balance
of precision engineering
301
00:38:39,680 --> 00:38:41,400
and furious gnawing.
302
00:38:45,200 --> 00:38:49,000
And only the elements
will decide if they've got it right.
303
00:38:56,760 --> 00:38:57,600
Winter.
304
00:39:00,680 --> 00:39:02,520
Has their lodge prevailed?
305
00:39:06,000 --> 00:39:09,880
Or have they built their own icy tomb?
306
00:39:38,560 --> 00:39:40,040
They've pulled it off.
307
00:39:41,680 --> 00:39:43,480
A perfectly crafted home.
308
00:39:45,200 --> 00:39:48,080
Fit for a new frontier.
309
00:40:01,400 --> 00:40:08,080
Only when spring arrives do we see
that their dam has had another effect.
310
00:40:13,160 --> 00:40:18,160
Our beavers have
turned their pond into a lake.
311
00:40:22,200 --> 00:40:27,840
It absorbs the spring sun,
heating up the frozen ground beneath.
312
00:40:30,400 --> 00:40:37,320
As the soil thaws, more streams flow
and more trees can take root.
313
00:40:39,440 --> 00:40:42,280
A gold rush of building material
314
00:40:43,320 --> 00:40:46,440
for more beavers moving up from the south.
315
00:40:49,760 --> 00:40:55,280
Turning this virgin land
into a bustling frontier community.
316
00:41:32,240 --> 00:41:36,400
But this budding utopia
isn't everything it seems.
317
00:41:41,800 --> 00:41:46,600
Alaska's frozen bog land
holds a dark secret.
318
00:41:49,120 --> 00:41:50,080
As it thaws...
319
00:41:53,120 --> 00:41:55,400
...it releases methane.
320
00:41:58,640 --> 00:42:03,320
A greenhouse gas with the power
to tip our climate out of balance.
321
00:42:10,280 --> 00:42:15,640
It traps up to 80 times more heat
in our atmosphere than carbon dioxide,
322
00:42:16,880 --> 00:42:19,520
speeding up the thawing
of underground ice.
323
00:42:22,560 --> 00:42:25,640
Which can release still more methane
324
00:42:27,200 --> 00:42:31,280
in a vicious cycle
of ever-increasing temperatures.
325
00:42:34,480 --> 00:42:36,760
Ninety percent of this excess heat
326
00:42:38,240 --> 00:42:41,000
feeds back into our oceans...
327
00:42:43,280 --> 00:42:45,800
...fueling more hurricanes,
328
00:42:46,680 --> 00:42:52,040
and in some places,
something far more insidious.
329
00:42:54,640 --> 00:42:56,800
The legs of an abandoned oil rig
330
00:42:57,320 --> 00:43:00,840
provide the perfect anchor point
for this tiny polyp.
331
00:43:03,280 --> 00:43:05,000
From its prime location...
332
00:43:07,160 --> 00:43:09,440
it scopes out new spots
333
00:43:10,960 --> 00:43:13,880
to deposit a clone.
334
00:43:24,400 --> 00:43:25,600
In a warming ocean,
335
00:43:26,720 --> 00:43:31,840
it doesn't take long for a single polyp
to create a clone army.
336
00:43:41,080 --> 00:43:45,920
But that is just the first step
in their relentless expansion.
337
00:43:51,000 --> 00:43:55,640
After a few short weeks,
the clones start to transform.
338
00:44:01,240 --> 00:44:06,880
Losing their tentacles and remodeling
their bodies into tiny towers.
339
00:44:31,400 --> 00:44:34,120
Each clone becomes a production line.
340
00:44:49,160 --> 00:44:51,320
A conveyor belt of babies.
341
00:44:59,320 --> 00:45:02,840
A warm and overfished ocean
has fewer predators.
342
00:45:03,640 --> 00:45:07,000
So these babies
can survive in record numbers.
343
00:45:14,600 --> 00:45:17,680
They grow to adulthood
in just a few weeks.
344
00:45:26,800 --> 00:45:29,200
Becoming jellyfish.
345
00:45:33,440 --> 00:45:37,040
Without a shell or a skeleton,
they can endure
346
00:45:37,960 --> 00:45:42,480
even as a changing climate
makes our oceans ever more acidic.
347
00:45:48,440 --> 00:45:51,040
The planet's ultimate survivors.
348
00:45:59,520 --> 00:46:05,040
And these simple gelatinous creatures
will eventually produce more polyps,
349
00:46:05,880 --> 00:46:12,480
each with the power to create
its own army of clones, millions strong.
350
00:46:22,360 --> 00:46:25,440
Our changing oceans
are now bearing witness
351
00:46:25,960 --> 00:46:32,320
to what some scientists call
"the rise of slime."
352
00:46:36,000 --> 00:46:37,240
Oceans of jelly.
353
00:46:38,760 --> 00:46:40,480
Legions of rodents.
354
00:46:41,520 --> 00:46:43,280
Swarms of insects.
355
00:46:45,840 --> 00:46:51,160
All warnings that nature's network
is at breaking point.
356
00:46:55,960 --> 00:47:00,280
We are all starting
to feel the knock-on effects.
357
00:47:06,400 --> 00:47:11,880
But there are still ways to nurse
our sick planet back to health.
358
00:47:16,480 --> 00:47:21,000
We share our home
with extraordinary species
359
00:47:22,800 --> 00:47:25,560
whose struggles to feed their families...
360
00:47:27,920 --> 00:47:29,680
save their children,
361
00:47:31,240 --> 00:47:32,920
and protect their homes
362
00:47:34,160 --> 00:47:37,120
can help nature's network to recover.
363
00:47:39,440 --> 00:47:42,600
Our living world's most powerful healers.
364
00:47:44,600 --> 00:47:47,440
They hold our future in their hands.
30010
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