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Narrator: One river
dwarfs all others.
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The mightiest of them all.
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00:00:17,366 --> 00:00:21,400
Through it flows one fifth of
all the fresh water
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00:00:21,400 --> 00:00:23,966
on our planet.
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00:00:26,433 --> 00:00:30,833
It sustains the world's
largest rainforest.
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00:00:33,300 --> 00:00:35,533
It nurtures
the greatest diversity
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00:00:35,533 --> 00:00:39,166
of wildlife on earth...
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00:00:40,400 --> 00:00:43,166
And inspires
vibrant cultures.
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It is a river so vast
that it defies belief.
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00:00:54,466 --> 00:00:58,400
It is the Amazon.
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A river of extremes,
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size...
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00:01:08,900 --> 00:01:11,333
Transformation,
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00:01:11,333 --> 00:01:13,333
and color.
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00:01:13,333 --> 00:01:17,433
Together they create
the secret worlds
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00:01:17,433 --> 00:01:20,500
and unexpected
opportunities for those
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00:01:20,500 --> 00:01:25,433
who make their home
in the legendary Amazon.
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00:01:31,833 --> 00:01:36,900
Earth's rivers of life make
extraordinary journeys,
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00:01:36,900 --> 00:01:40,000
carving through continents,
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00:01:40,000 --> 00:01:43,333
nurturing
great civilizations,
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00:01:43,333 --> 00:01:47,366
feeding and connecting
life across our world.
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00:01:48,966 --> 00:01:54,600
These rivers are the life-blood
of planet earth.
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=====================
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00:02:03,633 --> 00:02:04,800
Narrator: The story of
the Amazon starts
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with the single drop...
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00:02:12,100 --> 00:02:16,366
Among the glaciers
of the Peruvian andes.
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00:02:18,633 --> 00:02:23,666
Here, glacial melt water tumbles
down the mountainsides.
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00:02:23,666 --> 00:02:27,500
On lower slopes where
humid air from below
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00:02:27,500 --> 00:02:31,000
meets the cold mountain
atmosphere...
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00:02:34,666 --> 00:02:40,600
Cloud forests grow,
shrouded in mist.
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00:02:47,633 --> 00:02:50,366
Tiny plants create
hanging gardens
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00:02:50,366 --> 00:02:54,566
on the branches
of ancient trees...
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00:02:58,400 --> 00:03:05,133
Transforming water vapor
into sparkling droplets.
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00:03:10,533 --> 00:03:16,866
All around is the sound of
the Amazon coming to life...
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00:03:21,000 --> 00:03:28,000
The start of a 4,000-mile
journey to the sea.
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00:03:31,533 --> 00:03:37,033
The Amazon is made up of more
than a thousand tributaries
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00:03:37,033 --> 00:03:42,800
which gather water from across
tropical south America...
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00:03:44,600 --> 00:03:46,833
Flowing through 9 countries,
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00:03:46,833 --> 00:03:49,333
feeding into
one huge river
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00:03:49,333 --> 00:03:52,666
which runs east
across the Amazon basin
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00:03:52,666 --> 00:03:55,833
into the Atlantic ocean.
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00:03:59,566 --> 00:04:06,133
As it gathers water from such
an extreme and diverse region,
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00:04:06,133 --> 00:04:10,566
the Amazon's headwaters come in
many different shapes,
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00:04:10,566 --> 00:04:11,466
sizes, and colors.
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00:04:22,300 --> 00:04:27,166
Each has its
own distinct character.
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00:04:29,300 --> 00:04:35,066
One shallow and rocky remote
Amazon tributary in Brazil
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provides an enticing opportunity
for a family
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00:04:38,066 --> 00:04:43,133
of one Amazon's largest
and rarest predators...
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Giant river otters.
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00:05:08,533 --> 00:05:12,366
Adults are nearly
6 feet long.
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00:05:12,366 --> 00:05:16,933
This family is
exploring a new territory,
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00:05:16,933 --> 00:05:20,766
a 3-mile stretch of
the cristalino river
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00:05:20,766 --> 00:05:23,633
in the Amazon's far south.
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00:05:23,633 --> 00:05:28,800
Led by dad,
the family follow his calls
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00:05:28,800 --> 00:05:32,700
with a chorus that is unique
to their group.
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This spot looks perfect,
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rich in fish.
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00:05:50,533 --> 00:05:54,866
Now the parents can teach
their young how to hunt.
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It's a testing time for
the most inexperienced cub.
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00:06:06,333 --> 00:06:08,800
Calling out a
stream of orders,
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dad coordinates
the hunting party.
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00:06:19,400 --> 00:06:23,366
Fish can evade otters
in the deep waters.
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00:06:23,366 --> 00:06:26,133
The family's
best chance is to corral
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the fish up
against the bank.
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00:06:55,233 --> 00:06:58,766
The youngster
has missed out.
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00:07:00,300 --> 00:07:06,166
Everyone seems to have a fish
but him.
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00:07:11,700 --> 00:07:14,900
And he's not happy about it.
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00:07:23,633 --> 00:07:27,733
Luckily, the family is generous
enough to share.
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00:07:27,733 --> 00:07:30,800
Not that dad
seems impressed.
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00:07:37,133 --> 00:07:40,066
It takes 3 years
for an otter cub
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00:07:40,066 --> 00:07:43,566
to master the complexities
of these rivers.
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00:07:45,800 --> 00:07:49,300
The remote headwaters
of the Amazon
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have an unpredictable
and dangerous reputation.
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00:07:55,066 --> 00:08:00,466
Many call rapids like these
boat breakers.
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00:08:03,000 --> 00:08:05,933
And there are accounts
of intrepid explorers
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00:08:05,933 --> 00:08:09,833
disappearing without
a trace.
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00:08:17,633 --> 00:08:19,733
These upper reaches are home
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00:08:19,733 --> 00:08:23,966
to the Amazon's legendary
river monsters...
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00:08:26,533 --> 00:08:28,233
Like electric eels,
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capable of generating
more than 500 volts...
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00:08:36,566 --> 00:08:38,133
Enormous pacus,
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some weighing
up to 55 pounds...
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And giant anacondas,
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among the largest snakes
in the world.
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00:08:52,600 --> 00:08:57,666
Some of these Amazon headwaters
are so inaccessible,
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00:08:57,666 --> 00:09:03,466
They still hide mysteries which
are only now being discovered.
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00:09:10,066 --> 00:09:14,666
Beyond the bank of
one distant tributary,
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the forest conceals
a rare treasure.
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00:09:23,100 --> 00:09:25,400
Branching off
the main river
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00:09:25,400 --> 00:09:29,900
is a pool of
crystal-clear water...
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00:09:36,366 --> 00:09:40,500
With dancing,
bubbling sand.
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00:09:42,900 --> 00:09:47,800
This is, in fact, a spring.
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00:09:50,900 --> 00:09:53,866
Rising from
deep underground,
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00:09:53,866 --> 00:09:57,966
the water is
filtered by the sand...
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Leaving it as spotless
as an aquarium.
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It's full of life,
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00:10:18,266 --> 00:10:22,600
and with such clean,
clear water,
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it's a perfect nursery.
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00:10:25,833 --> 00:10:30,900
A young couple has come here
to raise a family.
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00:10:32,266 --> 00:10:36,466
A pair of cichlids
so new to science,
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they don't even have a name.
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The female finds a quiet spot
to lay her eggs.
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The male follows her
to fertilize them
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in an elegant
mating dance.
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00:11:10,700 --> 00:11:15,500
They will guard them
until they hatch.
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00:11:24,233 --> 00:11:28,266
When they finally do,
the young are unable to swim,
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00:11:28,266 --> 00:11:31,500
at least not until they
absorb the yolk sacks
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which they're born with.
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00:11:33,500 --> 00:11:36,933
So for now, the parents
keep them safe
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00:11:36,933 --> 00:11:41,466
by hiding them under a leaf
and dutifully warning off
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00:11:41,466 --> 00:11:44,033
any would-be baby snatchers.
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00:11:54,000 --> 00:11:59,166
And like all young parents,
sleep is at a premium.
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A few days later, these
baby fish can finally swim...
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00:12:17,433 --> 00:12:23,100
And like all toddlers,
are eager to explore.
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00:12:26,666 --> 00:12:31,400
Being a parent
is unrelenting,
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especially when you have
a brood of over a hundred.
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Cichlids form strong
bonds with their mates
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and are as loyal
to their babies
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as they are to each other.
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00:13:12,100 --> 00:13:17,033
But out here,
danger is never far away.
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00:13:21,200 --> 00:13:24,533
The different properties
of the clear water spring
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00:13:24,533 --> 00:13:26,300
and the main river channel,
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00:13:26,300 --> 00:13:30,166
which is stained dark
by rotting leaves...
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00:13:32,933 --> 00:13:37,233
Creates a bizarre underwater
phenomenon...
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00:13:42,266 --> 00:13:45,066
A water wall.
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00:13:49,666 --> 00:13:57,466
It's the perfect hiding place
for voracious mouths...
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00:13:57,466 --> 00:14:01,666
Freshwater Amazon barracuda
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00:14:01,666 --> 00:14:05,466
and a large wolf fish.
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00:14:09,366 --> 00:14:15,533
They lurk,
watching and waiting.
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00:14:15,533 --> 00:14:20,633
But the predators seem strangely
reluctant to enter the clear water,
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00:14:20,633 --> 00:14:22,966
for fear, perhaps,
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00:14:22,966 --> 00:14:27,166
of being spotted and
gobbled up themselves.
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00:14:32,833 --> 00:14:37,066
But well-armed stingrays
are braver.
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00:14:49,700 --> 00:14:53,333
Using their
natural camouflage...
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00:14:56,600 --> 00:14:59,466
They can set an ambush...
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From where they
might vacuum up
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00:15:04,666 --> 00:15:08,066
the cichlid family
in one fell swoop.
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00:15:12,600 --> 00:15:17,766
Their fate depends on
the vigilance of their parents.
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00:15:17,766 --> 00:15:20,500
Dad spots something...
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00:15:22,433 --> 00:15:25,533
And defends his brood.
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00:15:34,733 --> 00:15:38,133
The stingray
is sent packing.
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00:15:48,733 --> 00:15:51,900
These dedicated
and brave parents
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00:15:51,900 --> 00:15:55,266
will have to be
ever-watchful...
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00:16:01,800 --> 00:16:04,066
Shepherding their young
until one day
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00:16:04,066 --> 00:16:06,266
they are old enough
and bold enough
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00:16:06,266 --> 00:16:11,633
to face the perils of the main
channel for themselves.
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00:16:22,300 --> 00:16:27,766
The upper Amazon hides many
strange and secret worlds
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00:16:27,766 --> 00:16:30,666
teeming with life,
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00:16:30,666 --> 00:16:34,666
but there is one remote
river in Peru
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00:16:34,666 --> 00:16:38,166
where the waters are
seemingly barren.
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00:16:42,600 --> 00:16:48,066
As dawn breaks, an ethereal
apparition appears,
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00:16:48,066 --> 00:16:52,966
wisps of steam snaking
across the canopy...
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00:16:56,833 --> 00:17:03,066
Revealing below, a boiling
Amazon tributary.
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00:17:04,900 --> 00:17:07,100
Only recently mapped,
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00:17:07,100 --> 00:17:09,166
it is now known to be one of
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the largest stretches of thermal
river anywhere on the planet.
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00:17:19,466 --> 00:17:23,233
At a temperature of
nearly 200 degrees,
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00:17:23,233 --> 00:17:27,533
any fish unlucky enough
to stray into these waters
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00:17:27,533 --> 00:17:31,100
would be instantly
cooked alive.
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00:17:36,433 --> 00:17:40,833
Hot bedrock from deep
within the earth's crust
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lies unusually close
to the surface here,
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so this water is
heated and purified,
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00:17:51,500 --> 00:17:56,433
which is why this stretch of
river is so special.
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00:18:06,666 --> 00:18:10,900
Narrator: One of 400 tribes
indigenous to the Amazon,
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the ashaninka people
have been visiting
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the boiling river
for generations
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00:18:17,066 --> 00:18:20,500
and revere it for
its healing properties.
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00:18:21,800 --> 00:18:24,766
Juan flores
is their shaman.
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00:18:31,498 --> 00:18:38,346
Shaman: For me the waters hace a power
and a great healing spirit.
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00:18:40,346 --> 00:18:50,836
I came here when I was ill
I became stronger, calmer.
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00:18:51,613 --> 00:18:54,517
The water healed me.
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00:18:55,133 --> 00:18:56,866
Narrator: Juan and his
family have developed
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00:18:56,866 --> 00:19:02,400
a deep connection with
this precious place.
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00:19:02,400 --> 00:19:07,166
They've learned that by taking
plants from the surrounding forests
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00:19:07,166 --> 00:19:12,566
and mixing them with this
ultra-pure and super-heated water,
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00:19:12,566 --> 00:19:14,766
they can make medicine.
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00:19:23,242 --> 00:19:27,054
Well, the steam spirit
works with the plants.
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00:19:29,385 --> 00:19:34,329
Te great water healer is in harmony
with the spirit of the panets.
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00:19:40,633 --> 00:19:44,100
Narrator: Many medicines
used today across the world
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00:19:44,100 --> 00:19:47,533
have their origins
in rainforests,
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00:19:47,533 --> 00:19:50,533
yet less than a tenth
of Amazon's plants
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00:19:50,533 --> 00:19:53,633
have been studied
by modern science.
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00:19:55,500 --> 00:19:57,166
The rest remain a mystery,
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00:19:57,166 --> 00:20:00,300
known only to
the local healers.
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00:20:12,600 --> 00:20:17,533
This extraordinary river simmers
for the next 4 miles
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00:20:17,533 --> 00:20:21,500
before it tumbles away from
the last of the foothills,
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00:20:21,500 --> 00:20:25,800
down to the plains of
the Amazon basin below.
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00:20:31,333 --> 00:20:34,800
Here, the tributaries
join together
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00:20:34,800 --> 00:20:38,866
and the lowland rivers
begin to swell...
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00:20:43,500 --> 00:20:48,900
Surging faster and deeper.
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00:20:48,900 --> 00:20:55,166
The strength of the currents
erodes the soft riverbanks.
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00:21:02,300 --> 00:21:05,066
But even from
destruction like this,
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00:21:05,066 --> 00:21:09,566
the Amazon creates unexpected
opportunity.
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00:21:16,333 --> 00:21:18,833
Hidden treasure...
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00:21:21,133 --> 00:21:24,100
Which attracts
green-winged macaws,
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00:21:24,100 --> 00:21:28,033
who flock together on
the newly-exposed banks.
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00:21:32,333 --> 00:21:37,466
They have come to eat fresh
Clay, which might seem strange,
198
00:21:37,466 --> 00:21:40,733
but there is
a very good reason.
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00:21:47,066 --> 00:21:51,700
This particular Clay is
naturally rich in salt,
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00:21:51,700 --> 00:21:55,100
an essential
dietary supplement.
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00:21:57,566 --> 00:21:59,933
Far from the ocean
and leached away
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00:21:59,933 --> 00:22:02,700
by the Amazon's
high rainfall,
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00:22:02,700 --> 00:22:05,366
salt is hard to find here.
204
00:22:09,900 --> 00:22:14,800
So the macaws bicker
over the best deposits,
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00:22:14,800 --> 00:22:20,700
creating one of the Amazon's loudest
and most colorful spectacles.
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00:22:32,000 --> 00:22:35,900
Leaving the very last
foothills behind them,
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00:22:35,900 --> 00:22:39,033
the lowland rivers
then set off
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00:22:39,033 --> 00:22:45,133
out across the vast plain
of the Amazon basin.
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00:22:47,166 --> 00:22:49,633
Ultimately, they
all join together
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00:22:49,633 --> 00:22:53,966
to create one gigantic
muddy river channel.
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00:22:59,800 --> 00:23:03,133
Close to the Peruvian
city of iquitos
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00:23:03,133 --> 00:23:07,866
is where some say the Amazon
truly begins.
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00:23:10,633 --> 00:23:17,233
Here, ocean-going ships can sail
nearly 2,500 miles inland.
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00:23:30,033 --> 00:23:33,300
Almost halfway through
its journey to the sea,
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00:23:33,300 --> 00:23:38,533
the Amazon meets its most
distinctive and imposing tributary,
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00:23:38,533 --> 00:23:43,600
the inky black rio
negro in Brazil.
217
00:23:47,300 --> 00:23:50,166
The negro is
stained dark by tannins
218
00:23:50,166 --> 00:23:53,033
from decayed forest leaves,
219
00:23:53,033 --> 00:23:56,433
which also make it acidic.
220
00:23:58,566 --> 00:24:00,900
Where the two
rivers collide,
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00:24:00,900 --> 00:24:04,766
they create one of the most
extraordinary river spectacles
222
00:24:04,766 --> 00:24:07,633
anywhere in the world.
223
00:24:13,066 --> 00:24:15,533
In contrast to the negro,
224
00:24:15,533 --> 00:24:19,433
the Amazon's water looks
like chocolate milk,
225
00:24:19,433 --> 00:24:23,966
heavy with sediments
washed down from the andes.
226
00:24:23,966 --> 00:24:27,500
The properties
of the two are so different,
227
00:24:27,500 --> 00:24:33,400
the line between them can
remain visible for 90 miles.
228
00:24:38,000 --> 00:24:40,500
And it's here
at this great confluence
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00:24:40,500 --> 00:24:44,366
where the Amazon sustains its
greatest city...
230
00:24:46,400 --> 00:24:48,600
Manaus.
231
00:24:55,100 --> 00:24:59,166
With a population of over
two million people,
232
00:24:59,166 --> 00:25:04,433
this city made its fortune
in the 19th century
233
00:25:04,433 --> 00:25:10,633
from the riches of the river
and surrounding rainforest.
234
00:25:14,966 --> 00:25:19,066
Rubber, gold, and minerals.
235
00:25:20,633 --> 00:25:25,333
The thriving markets of manaus
depend on a constant supply
236
00:25:25,333 --> 00:25:27,866
of exotic foods.
237
00:25:30,433 --> 00:25:32,066
For the last century,
238
00:25:32,066 --> 00:25:35,500
this flamboyant city has
built a reputation
239
00:25:35,500 --> 00:25:39,000
as the Paris of
the tropics,
240
00:25:39,000 --> 00:25:44,933
dominated by
an extravagant opera house.
241
00:25:52,600 --> 00:25:56,000
The people of manaus
depend on local farmers
242
00:25:56,000 --> 00:26:00,500
like edmar Fernandez de lira,
243
00:26:00,500 --> 00:26:02,900
who grow crops on
the fertile muddy banks
244
00:26:02,900 --> 00:26:06,400
of the Amazon just
outside the city.
245
00:26:11,180 --> 00:26:13,381
Fernandez: We have
been living for 35 years.
246
00:26:15,570 --> 00:26:20,509
All the families here farm
vegetables and spring greens.
247
00:26:23,165 --> 00:26:25,666
Picking cabbage
leaves and hoeing...
248
00:26:27,007 --> 00:26:29,605
...this is our life.
249
00:26:30,200 --> 00:26:33,266
Narrator: These are
the good times for edmar,
250
00:26:33,266 --> 00:26:36,766
but he must work all
the daylight hours he can.
251
00:26:39,730 --> 00:26:43,612
When it's harvest time we have
to start at 5 am in the fields.
252
00:26:50,600 --> 00:26:54,966
Narrator: Here, the Amazon's
banks are very productive.
253
00:26:54,966 --> 00:26:57,466
Once a week for
8 months of the year,
254
00:26:57,466 --> 00:27:02,666
Edmar carries nearly a ton of
leaves down to the waiting boat.
255
00:27:04,924 --> 00:27:08,110
Edmar: At 5 pm the boat arrives
to pick up the cabbage
256
00:27:11,925 --> 00:27:13,741
to sell it in the market.
257
00:27:15,633 --> 00:27:17,700
Narrator: But time is
running out.
258
00:27:17,700 --> 00:27:20,100
These are some of
the last crops edmar
259
00:27:20,100 --> 00:27:22,866
will be able to
sell for months.
260
00:27:25,566 --> 00:27:30,533
He must prepare himself
for huge change.
261
00:27:35,233 --> 00:27:37,933
Every year in November,
262
00:27:37,933 --> 00:27:43,366
the tropical wet season
sweeps in.
263
00:27:43,366 --> 00:27:47,233
6 months of rainstorms
inject trillions of gallons
264
00:27:47,233 --> 00:27:50,400
of water into the Amazon
river system...
265
00:27:54,033 --> 00:27:56,600
Transforming it.
266
00:27:59,200 --> 00:28:04,266
Whole sections of forest are
washed clean by flash floods.
267
00:28:07,666 --> 00:28:10,033
Small creatures from
the forest floor
268
00:28:10,033 --> 00:28:13,900
have their world turned
upside down.
269
00:28:30,766 --> 00:28:36,700
In the mid Amazon, stretches
of river can quadruple in width
270
00:28:36,700 --> 00:28:39,966
and rise by 30 feet.
271
00:28:49,033 --> 00:28:54,066
The port of manaus is built
with a huge harbor wall
272
00:28:54,066 --> 00:28:57,533
to help withstand
the change.
273
00:29:05,933 --> 00:29:10,633
But beyond the city,
it's a different story.
274
00:29:14,033 --> 00:29:17,666
Edmar's farm is submerged.
275
00:29:21,733 --> 00:29:23,566
But because he has prepared,
276
00:29:23,566 --> 00:29:27,233
he just shifts his attention
to his stilt garden.
277
00:29:29,833 --> 00:29:32,533
For the next 4 months,
the only vegetables
278
00:29:32,533 --> 00:29:37,366
to grow on his farm will be
those above the flood.
279
00:29:41,633 --> 00:29:44,033
But when the river
does recede,
280
00:29:44,033 --> 00:29:46,433
it will deposit a fresh
layer of sediment
281
00:29:46,433 --> 00:29:51,466
which will fertilize
a new season of planting.
282
00:29:51,466 --> 00:29:53,133
The high waters leave behind
283
00:29:53,133 --> 00:29:56,233
just what the riverside
farmers need.
284
00:30:06,733 --> 00:30:08,500
But the floods
are getting worse,
285
00:30:08,500 --> 00:30:13,733
and living here comes
with huge challenges.
286
00:30:15,067 --> 00:30:18,060
Edmar: Here in our village almost everyone
has already lost a house.
287
00:30:19,923 --> 00:30:21,279
It's a great trouble to us
288
00:30:22,565 --> 00:30:25,548
that our houses are destroyed,
just to rebuild them again.
289
00:30:26,900 --> 00:30:29,166
Narrator: In recent years,
the Amazon has faced
290
00:30:29,166 --> 00:30:31,933
more extreme weather events...
291
00:30:34,900 --> 00:30:38,166
Drier dry seasons...
292
00:30:41,100 --> 00:30:44,733
And even wetter
wet seasons.
293
00:30:46,566 --> 00:30:48,733
Within the last two decades,
294
00:30:48,733 --> 00:30:52,466
rainfall has become so intense
that the floods
295
00:30:52,466 --> 00:30:56,966
have been the highest
since records began.
296
00:30:58,212 --> 00:30:59,652
Edmar: The community wants to move.
297
00:31:02,747 --> 00:31:06,328
People are tired of suffering
our energy is draning away.
298
00:31:08,458 --> 00:31:09,662
It's becoming unbearable.
299
00:31:11,166 --> 00:31:13,733
Narrator: The river
that provided so abundantly
300
00:31:13,733 --> 00:31:16,300
for edmar and his family
301
00:31:16,300 --> 00:31:20,966
is now threatening to destroy
their way of life.
302
00:31:29,100 --> 00:31:31,366
It's hard to say
what the future holds
303
00:31:31,366 --> 00:31:34,266
for many of the Amazon's
river people.
304
00:31:41,533 --> 00:31:43,133
Although for nature,
305
00:31:43,133 --> 00:31:46,100
the extreme scale of
these annual floods
306
00:31:46,100 --> 00:31:49,733
brings incredible
opportunities.
307
00:31:52,566 --> 00:31:58,933
Vast tracts of land become
completely submerged,
308
00:31:58,933 --> 00:32:04,566
creating the Amazon's
legendary flooded forests.
309
00:32:10,866 --> 00:32:18,600
Nearly 200,000 square miles of
rainforest becomes inundated...
310
00:32:22,200 --> 00:32:25,666
A new home for
countless fish that shoal
311
00:32:25,666 --> 00:32:29,400
among the branches where
birds once flew.
312
00:32:31,366 --> 00:32:36,600
The Amazon has
over 3,000 species of fish.
313
00:32:40,600 --> 00:32:45,700
Many breed in the flooded
forests during high water.
314
00:32:48,700 --> 00:32:51,466
And hot on their tails
come the Amazon's
315
00:32:51,466 --> 00:32:56,166
most revered and
mysterious creatures.
316
00:33:17,366 --> 00:33:19,600
Pink river dolphins,
317
00:33:19,600 --> 00:33:22,900
known locally as botos,
318
00:33:22,900 --> 00:33:26,700
the largest river dolphins
in the world.
319
00:33:33,000 --> 00:33:35,633
Thousands of
miles from the ocean,
320
00:33:35,633 --> 00:33:38,900
the Amazon is
their only home.
321
00:33:45,333 --> 00:33:50,766
A flooded forest might seem an
impenetrable world for a dolphin.
322
00:33:54,733 --> 00:33:59,166
Here, the floodwater is stained
reddish brown.
323
00:34:07,966 --> 00:34:11,933
Sunken branches create
an obstacle course,
324
00:34:11,933 --> 00:34:17,733
but botos have the equipment
to navigate this dark maze.
325
00:34:24,766 --> 00:34:26,300
Like their ocean cousins,
326
00:34:26,300 --> 00:34:28,500
their domed forehead,
the melon,
327
00:34:28,500 --> 00:34:32,500
allows botos to scan their
surroundings using sonar.
328
00:34:35,933 --> 00:34:38,533
They can navigate every
drowned treetop
329
00:34:38,533 --> 00:34:42,866
with absolute precision
330
00:34:42,866 --> 00:34:45,900
and have little problem
locating their prey.
331
00:34:47,600 --> 00:34:49,333
And if that's not enough,
332
00:34:49,333 --> 00:34:54,333
botos have another tool
unique to their species.
333
00:34:54,333 --> 00:34:58,666
They are the only adult dolphins
with whiskers.
334
00:35:05,133 --> 00:35:10,233
These help pinpoint
exactly where their prey is,
335
00:35:10,233 --> 00:35:13,266
no matter how it
twists and turns.
336
00:35:44,933 --> 00:35:48,300
The Amazon's flooded
forests have existed
337
00:35:48,300 --> 00:35:52,200
for at least
8 million years...
338
00:35:55,966 --> 00:36:00,633
Creating an extreme world
so special and unique,
339
00:36:00,633 --> 00:36:05,633
It's the home of some of the
most bizarre birds on earth...
340
00:36:11,633 --> 00:36:14,000
Hoatzins...
341
00:36:20,666 --> 00:36:25,100
Whose unusual lifestyle
sets them apart.
342
00:36:28,500 --> 00:36:32,533
For a start, they feed almost
exclusively on leaves,
343
00:36:32,533 --> 00:36:34,833
a diet which has
an unfortunate
344
00:36:34,833 --> 00:36:39,433
and gassy effect
on their digestion,
345
00:36:39,433 --> 00:36:44,766
leading to their nickname,
stink birds.
346
00:36:46,566 --> 00:36:48,033
During the flood season,
347
00:36:48,033 --> 00:36:52,366
certain riverside plants burst
into a flush of new growth.
348
00:36:54,366 --> 00:36:57,900
It's the time for
hoatzins to breed.
349
00:37:00,066 --> 00:37:04,333
But the new leaves attract
spider monkeys, too.
350
00:37:08,900 --> 00:37:10,900
Some monkeys can be a threat
351
00:37:10,900 --> 00:37:15,133
and often eat eggs
they find.
352
00:37:21,533 --> 00:37:26,066
Hoatzins only safety is in
the most inaccessible branches
353
00:37:26,066 --> 00:37:29,100
close to the surface
of the river...
354
00:37:31,300 --> 00:37:35,333
Safe from the reach
of greedy monkeys,
355
00:37:35,333 --> 00:37:39,833
but now in danger from
the floodwater.
356
00:37:50,966 --> 00:37:55,533
Even near the end of the
Amazon's wet season in may,
357
00:37:55,533 --> 00:37:57,300
sudden, intense storms
358
00:37:57,300 --> 00:38:01,233
can bring over 3 inches
of rain in a day...
359
00:38:04,733 --> 00:38:08,200
Drowning any
nests built too low
360
00:38:08,200 --> 00:38:13,300
and bringing others in reach
of river predators...
361
00:38:15,200 --> 00:38:18,200
Like the black caiman.
362
00:38:24,433 --> 00:38:27,433
To make the situation
even worse,
363
00:38:27,433 --> 00:38:33,066
hoatzin chicks are
curious and a little clumsy.
364
00:38:45,633 --> 00:38:50,433
Fortunately, they're
not totally helpless...
365
00:38:52,766 --> 00:38:56,500
Because they're born with
a piece of climbing equipment
366
00:38:56,500 --> 00:38:59,200
very few birds possess...
367
00:39:02,900 --> 00:39:05,533
Claws on their wings.
368
00:39:14,533 --> 00:39:17,300
So even this
little infant can climb
369
00:39:17,300 --> 00:39:19,966
back up to safety.
370
00:39:33,633 --> 00:39:38,400
At the rainy season's peak,
nearly 300,000 square miles
371
00:39:38,400 --> 00:39:43,100
of the Amazon's flood plain
are submerged.
372
00:39:46,333 --> 00:39:49,366
Under this colossal
weight of water,
373
00:39:49,366 --> 00:39:53,833
the earth's crust can
sink by 3 inches.
374
00:40:01,466 --> 00:40:06,000
The floodwaters can remain high
for 3 months,
375
00:40:06,000 --> 00:40:11,500
before they finally drain away
down into the lower Amazon
376
00:40:11,500 --> 00:40:14,566
in northeastern Brazil.
377
00:40:17,900 --> 00:40:20,566
Here in alter do chao,
378
00:40:20,566 --> 00:40:25,100
riverbanks can be
nearly 15 miles apart,
379
00:40:25,100 --> 00:40:28,600
literally over the horizon.
380
00:40:32,233 --> 00:40:37,466
Stretches of the lower Amazon
look more like a sea,
381
00:40:37,466 --> 00:40:43,400
and on its shore there
are some spectacular beaches.
382
00:40:48,633 --> 00:40:54,033
This region is often called
the Caribbean of the Amazon...
383
00:40:57,666 --> 00:41:02,466
Even though it's still over
300 miles from the ocean.
384
00:41:06,300 --> 00:41:09,066
Every year,
crowds of river people,
385
00:41:09,066 --> 00:41:11,533
the ribeirinhos,
gather here
386
00:41:11,533 --> 00:41:14,500
for a seasonal celebration
of the river.
387
00:41:36,933 --> 00:41:39,933
As the party preparations
begin in the town,
388
00:41:39,933 --> 00:41:42,400
sandro branco
and his grandfather
389
00:41:42,400 --> 00:41:46,733
enjoy a moment of quiet
before the fiesta.
390
00:41:49,111 --> 00:41:50,216
Sandro Father: So my son...
391
00:41:50,701 --> 00:41:54,916
how are you feeling
today about the competition?
392
00:41:55,292 --> 00:41:57,173
I'm feeling very anxious because...
393
00:41:57,495 --> 00:42:02,091
we have been rehearsing a lot and I really
want to take this weight off my shoulder.
394
00:42:02,900 --> 00:42:06,033
Narrator: Sandro is
right to be nervous,
395
00:42:06,033 --> 00:42:08,866
as alter de chao stages
one of the most colorful
396
00:42:08,866 --> 00:42:13,766
and surprising river
carnivals in all Brazil,
397
00:42:13,766 --> 00:42:17,733
and this year sandro
is the leading man.
398
00:42:19,187 --> 00:42:22,119
Sandro: The seduction
scene is much more difficult,
399
00:42:22,384 --> 00:42:24,671
for I have to lift
the girl and carry her
400
00:42:25,257 --> 00:42:29,481
letting her fall or messing up the
choreography not being synchronized.
401
00:42:29,903 --> 00:42:33,588
So that scene is the scene
I'm most worried about.
402
00:42:50,700 --> 00:42:54,066
Narrator: Sandro is
the star of the show,
403
00:42:54,066 --> 00:42:58,833
playing the pink boto,
404
00:42:58,833 --> 00:43:04,500
a legendary creature
for these river people.
405
00:43:04,500 --> 00:43:08,333
The local legend is that on
the night of the full moon,
406
00:43:08,333 --> 00:43:13,866
the boto dolphin turns into
a handsome and seductive man
407
00:43:13,866 --> 00:43:17,400
with a hat and a white suit.
408
00:43:17,400 --> 00:43:25,366
Once on land, his challenge is
to seduce young women.
409
00:43:38,166 --> 00:43:40,700
Despite the pressure...
410
00:43:42,833 --> 00:43:46,833
The dance has been a success.
411
00:43:49,908 --> 00:43:52,191
Sandro: Being a boto is not easy,
412
00:43:52,985 --> 00:43:59,243
you have to be the dancer,
the seducer it's a lot of preparation.
413
00:43:58,866 --> 00:44:01,933
Narrator: Sandro is
the third generation
414
00:44:01,933 --> 00:44:04,866
of boto dancers
in his family,
415
00:44:04,866 --> 00:44:07,933
but he's facing stiff
competition.
416
00:44:07,933 --> 00:44:13,533
The next wave of talent
is hot on his heels.
417
00:44:16,064 --> 00:44:19,247
I am really excited,
I just loved it. A lot!
418
00:44:25,600 --> 00:44:27,900
Narrator: This is a celebration
that has been
419
00:44:27,900 --> 00:44:31,400
going on for
hundreds of years...
420
00:44:36,766 --> 00:44:41,300
Revealing how the life
of this great river
421
00:44:41,300 --> 00:44:44,500
and the lives of millions
that live along its banks
422
00:44:44,500 --> 00:44:48,600
are inextricably intertwined.
423
00:45:04,800 --> 00:45:06,533
On the coast of Brazil,
424
00:45:06,533 --> 00:45:09,866
more than 4,000 miles
from its source,
425
00:45:09,866 --> 00:45:14,200
the Amazon river
finally reaches its mouth.
426
00:45:17,033 --> 00:45:20,033
It's here that just
a few times a year
427
00:45:20,033 --> 00:45:23,700
the largest and perhaps
most dangerous
428
00:45:23,700 --> 00:45:29,233
monster of the Amazon
shows its face.
429
00:45:30,968 --> 00:45:34,473
Local people: There was a guy
who had a boat on a beach
430
00:45:37,436 --> 00:45:40,530
near to where the Pororoca would come past
431
00:45:41,827 --> 00:45:45,527
but the Pororoca swept
the boat over the man.
432
00:45:46,216 --> 00:45:47,862
He was killed
433
00:45:51,600 --> 00:45:54,566
Narrator: The pororoca
is so large,
434
00:45:54,566 --> 00:45:58,600
it is heard before
it is seen.
435
00:46:00,200 --> 00:46:05,233
The very name itself means
giant roar.
436
00:46:12,566 --> 00:46:14,600
Pororoca!
437
00:46:18,084 --> 00:46:19,349
We move inside.
438
00:46:19,931 --> 00:46:22,149
We make sure we're
nowhere near the water.
439
00:46:38,500 --> 00:46:40,400
Narrator: On a full moon,
440
00:46:40,400 --> 00:46:43,266
the tide from the
Atlantic is so strong
441
00:46:43,266 --> 00:46:47,500
that its water surges into
the Amazon river channel,
442
00:46:47,500 --> 00:46:53,333
temporarily reversing the flow
of the greatest river on earth...
443
00:46:56,400 --> 00:47:01,800
Creating one of the most
impressive tidal bores in the world.
444
00:47:02,916 --> 00:47:04,615
Local People: The Pororoca is a living force.
445
00:47:05,426 --> 00:47:07,877
The water is alive.
446
00:47:20,633 --> 00:47:26,266
Narrator: But the beast
is not feared by everyone.
447
00:47:31,251 --> 00:47:32,930
Local People: The Pororoca changed my life.
448
00:47:35,134 --> 00:47:37,776
The perfect wave in
totally unexpected place
449
00:47:41,268 --> 00:47:46,019
with a very great
power and force thas is monstrous.
450
00:47:49,600 --> 00:47:51,266
Narrator: For sergenio Laos,
451
00:47:51,266 --> 00:47:55,633
the pororoca brings a truly
unique opportunity
452
00:47:55,633 --> 00:47:58,500
to surf the Amazon.
453
00:48:17,497 --> 00:48:19,059
Local People: People say that I'm crazy
454
00:48:20,410 --> 00:48:22,952
surfing the Amazon in the jungle
455
00:48:23,471 --> 00:48:27,862
with such powerful water
but I'm love with it all here.
456
00:48:46,633 --> 00:48:50,500
Narrator: When the pororoca
eventually subsides,
457
00:48:50,500 --> 00:48:55,333
the Amazon completes the final
leg of its journey...
458
00:49:02,066 --> 00:49:04,533
In the Atlantic ocean.
459
00:49:14,866 --> 00:49:20,500
Here the Amazon spreads out
as a vast cloud of muddy water,
460
00:49:20,500 --> 00:49:26,600
which can cover an area of
seabed the size of Texas.
461
00:49:29,733 --> 00:49:33,933
Until recently, it's been
very difficult to find exactly
462
00:49:33,933 --> 00:49:36,766
what lies and lives beneath.
463
00:49:37,900 --> 00:49:41,300
But today, the very
latest technology
464
00:49:41,300 --> 00:49:43,466
and the most advanced
submarines are allowing
465
00:49:43,466 --> 00:49:49,733
scientists to explore
this hidden world.
466
00:50:06,600 --> 00:50:11,533
On a dive 300 miles
from the Amazon's mouth,
467
00:50:11,533 --> 00:50:14,433
the expedition is revealing
that the river's nutrients
468
00:50:14,433 --> 00:50:17,033
are fertilizing
the ocean's waters,
469
00:50:17,033 --> 00:50:20,500
creating a bloom of plankton.
470
00:50:28,833 --> 00:50:34,566
It's hard to imagine that there
would be life under this murk.
471
00:50:42,866 --> 00:50:46,133
As the dive continues
below the plume,
472
00:50:46,133 --> 00:50:50,266
chief scientist Rodrigo
moura and pilot Alan Scott
473
00:50:50,266 --> 00:50:53,633
discover something
extraordinary.
474
00:50:53,633 --> 00:50:56,933
Scott: Wow, I've ever
seen anything like this before.
475
00:50:56,933 --> 00:50:57,653
Never.
476
00:51:00,033 --> 00:51:05,300
Narrator: A massive reef of
strange, rock-like algae...
477
00:51:12,433 --> 00:51:13,533
Oh, look.
478
00:51:13,533 --> 00:51:15,000
Jacks.
479
00:51:15,000 --> 00:51:17,566
Look at the size
of these guys.
480
00:51:22,066 --> 00:51:27,066
Narrator: Exploding with
rich and varied marine life.
481
00:51:28,600 --> 00:51:32,333
Moura: Angelfish heaven.
482
00:51:32,333 --> 00:51:37,266
Narrator: Under the dense plume
of the fertile river water,
483
00:51:37,266 --> 00:51:41,166
it turns out there's
a hidden world...
484
00:51:43,133 --> 00:51:48,900
An enormous reef more than
600 miles long.
485
00:51:54,700 --> 00:51:58,433
Instead of coral,
the unique properties
486
00:51:58,433 --> 00:52:03,533
of the Amazon have created
a garden of giant sponges.
487
00:52:13,600 --> 00:52:17,700
Some of the sponges are
more than 3 feet across
488
00:52:17,700 --> 00:52:21,533
and a thousand years old,
489
00:52:21,533 --> 00:52:24,866
all feeding on nutrients
which the Amazon has collected
490
00:52:24,866 --> 00:52:27,533
on its incredible journey.
491
00:52:46,300 --> 00:52:51,366
For the scientific world,
this is totally unexpected.
492
00:52:55,166 --> 00:52:56,500
Moura: You don't
see this every day, huh?
493
00:52:56,500 --> 00:53:00,700
No, not every day.
This is special.
494
00:53:00,700 --> 00:53:02,533
Narrator: No other river
on earth is known
495
00:53:02,533 --> 00:53:07,533
to have the power to shape
such an extraordinary ecosystem
496
00:53:07,533 --> 00:53:10,233
out in the ocean.
497
00:53:15,833 --> 00:53:20,766
Every dive is now
rewriting textbooks.
498
00:53:28,000 --> 00:53:35,166
A river of this scale
has great extremes,
499
00:53:35,166 --> 00:53:39,933
from tiny drops
in icy mountains
500
00:53:39,933 --> 00:53:44,966
to the greatest annual
flood on earth.
501
00:53:44,966 --> 00:53:47,733
From crystal clear pools
502
00:53:47,733 --> 00:53:52,366
to gigantic plankton blooms,
503
00:53:52,366 --> 00:53:56,466
the extraordinary power and
strength of the mighty Amazon
504
00:53:56,466 --> 00:53:59,466
creates incredible
challenges
505
00:53:59,466 --> 00:54:03,533
and fantastic opportunities
for all who call
506
00:54:03,533 --> 00:54:07,800
this great river their home.
507
00:54:12,433 --> 00:54:15,500
On the next rivers
of life, the Mississippi,
508
00:54:15,500 --> 00:54:18,133
a vast river system
509
00:54:18,133 --> 00:54:22,233
that gathers water
for nearly half of the us,
510
00:54:22,733 --> 00:54:26,066
from icy beginnings in
remote mountain streams,
511
00:54:28,066 --> 00:54:30,666
to the steaming swamps
of the deep south,
512
00:54:31,833 --> 00:54:34,000
nothing connects
and unites America
513
00:54:35,333 --> 00:54:37,566
like the Mississippi river.
514
00:54:39,834 --> 00:54:43,205
===============
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