Browse content similar to Fresh Water. Check below for episodes and series from the same categories and more!
Line | From | To | |
---|---|---|---|
Only 3% of the water on our planet is fresh. | 0:00:29 | 0:00:33 | |
Yet these precious waters are rich with surprise. | 0:00:36 | 0:00:40 | |
All life on land is ultimately dependent upon fresh water. | 0:00:53 | 0:00:58 | |
The mysterious tepuis of Venezuela. | 0:01:28 | 0:01:32 | |
Isolated mountain plateaus rising high above the jungle. | 0:01:33 | 0:01:38 | |
This was the inspiration for Arthur Conan Doyle's Lost World, | 0:01:46 | 0:01:52 | |
an imagined prehistoric land. | 0:01:52 | 0:01:55 | |
Here, strange towers of sandstone have been sculptured | 0:02:01 | 0:02:04 | |
over the millennia by battering wind and torrential rain. | 0:02:04 | 0:02:09 | |
Moisture, rising as water vapour from the surface of the sea, is blown inland by wind. | 0:02:21 | 0:02:28 | |
On reaching mountains, the moist air is forced upwards and, as it cools, | 0:02:40 | 0:02:46 | |
it condenses into cloud and finally rain, the source of all fresh water. | 0:02:46 | 0:02:53 | |
There is a tropical downpour here almost every day of the year. | 0:03:03 | 0:03:07 | |
Fresh water's journey starts here, high in the mountains. | 0:03:19 | 0:03:23 | |
Growing from humble streams to mighty rivers, it will travel hundreds of miles to the sea. | 0:03:40 | 0:03:46 | |
Angel Falls, the highest waterfall in the world. | 0:04:23 | 0:04:27 | |
Its waters drop unbroken for almost 1,000 metres. | 0:04:42 | 0:04:47 | |
Such is the height of these falls | 0:04:56 | 0:04:58 | |
that long before the water reaches the base in the Devil's Canyon, | 0:04:58 | 0:05:02 | |
it's blown away as a fine mist. | 0:05:02 | 0:05:05 | |
In their upper reaches, mountain streams are full of energy. | 0:05:36 | 0:05:42 | |
Streams join to form rivers, building in power, creating rapids. | 0:05:44 | 0:05:51 | |
The water here is cold, low in nutrients but high in oxygen. | 0:06:00 | 0:06:06 | |
The few creatures that live in the torrent have to hang on for dear life. | 0:06:09 | 0:06:15 | |
Invertebrates dominate these upper reaches. | 0:06:15 | 0:06:20 | |
The hellgrammite, it's body flattened to reduce drag, | 0:06:20 | 0:06:24 | |
has bushy gills to extract oxygen from the current. | 0:06:24 | 0:06:27 | |
Blackfly larvae anchor themselves with a ring of hooks. | 0:06:32 | 0:06:36 | |
But if these become unstuck, they are still held by a silken safety line. | 0:06:40 | 0:06:45 | |
There are advantages to life in the fast stream. | 0:06:58 | 0:07:02 | |
Bamboo shrimps can just sit and sift out passing particles with their fan-like forearms. | 0:07:02 | 0:07:08 | |
Usually these mountain streams only provide enough food for small animals to survive. | 0:07:27 | 0:07:33 | |
But with the spring melt here in Japan, monsters stir in their dens. | 0:07:33 | 0:07:41 | |
Giant salamanders, the world's largest amphibian, almost two metres long. | 0:07:48 | 0:07:55 | |
They're the only large predator in these icy waters. | 0:07:58 | 0:08:03 | |
They begin their hunt at night. | 0:08:06 | 0:08:08 | |
These salamanders have an exceptionally slow metabolism. | 0:08:24 | 0:08:28 | |
Living up to 80 years, they grow into giants. | 0:08:28 | 0:08:31 | |
The fish they hunt are scarce, and salamanders have poor eyesight. | 0:08:48 | 0:08:54 | |
But sensory nodes on their head and body detect the slightest changes in water pressure. | 0:08:57 | 0:09:04 | |
Free from competition, these giants can dine alone. | 0:09:15 | 0:09:20 | |
Pickings are usually thin for the salamanders. | 0:09:33 | 0:09:36 | |
But every year some of the world's high rivers are crowded by millions of visitors. | 0:09:36 | 0:09:43 | |
The salmon have arrived. | 0:09:50 | 0:09:53 | |
This is the world's largest fresh-water fish migration. | 0:10:00 | 0:10:04 | |
Across the northern hemisphere, salmon returning from the ocean to their spawning grounds | 0:10:08 | 0:10:14 | |
battle their way for hundreds of miles upstream. | 0:10:14 | 0:10:17 | |
Up here there are fewer predators to eat their eggs and fry. | 0:10:22 | 0:10:26 | |
A grizzly bear. | 0:10:53 | 0:10:56 | |
From famine to feast, he is spoilt for choice. | 0:10:57 | 0:11:02 | |
This Canadian bear is very special. | 0:11:09 | 0:11:12 | |
He has learnt to dive for his dinner. | 0:11:12 | 0:11:15 | |
But catching salmon in deep water is not that easy, and the cubs have lots to learn. | 0:11:29 | 0:11:36 | |
The annual arrival of spawning salmon | 0:12:12 | 0:12:15 | |
brings huge quantities of food into these high rivers that normally struggle to support much life. | 0:12:15 | 0:12:21 | |
Although relatively lifeless, the power of these upland rivers to shape the landscape | 0:12:34 | 0:12:39 | |
is greater than any other stage in a river's life. | 0:12:39 | 0:12:43 | |
Driven by gravity, they are the most erosive forces on the planet. | 0:12:45 | 0:12:51 | |
For the past five million years, Arizona's Colorado River has eaten away at the desert sandstone | 0:12:54 | 0:13:01 | |
to create a gigantic canyon. | 0:13:01 | 0:13:05 | |
It's over a mile deep and at its widest, it's 17 miles across. | 0:13:15 | 0:13:22 | |
The Grand Canyon. | 0:13:35 | 0:13:37 | |
This river has cut the world's longest canyon system. | 0:13:56 | 0:14:01 | |
A 1,000 mile scar, clearly visible from space. | 0:14:01 | 0:14:06 | |
As rivers leave the mountains behind, they gradually warm and begin to support more life. | 0:14:31 | 0:14:39 | |
Indian rivers are home to the world's most social otter. | 0:14:47 | 0:14:53 | |
Smooth-coated otters form family groups up to 17 strong. | 0:14:53 | 0:14:59 | |
Group rubbing not only refreshes their coats but strengthens social bonds. | 0:15:09 | 0:15:16 | |
When it comes to fishing, there is real strength in numbers. | 0:15:25 | 0:15:30 | |
Fishing practice begins when the cubs are four months old. | 0:15:42 | 0:15:47 | |
Only the adults have the speed and agility needed to make a catch. | 0:16:05 | 0:16:11 | |
Adults share their catches with their squabbling cubs. | 0:16:48 | 0:16:52 | |
Most otters are solitary, | 0:17:03 | 0:17:05 | |
but these rich warm waters can support large family groups, | 0:17:05 | 0:17:11 | |
and even bigger predators. | 0:17:11 | 0:17:13 | |
Mugger crocodiles, four metres long, could easily take a single otter. | 0:17:32 | 0:17:38 | |
But confident in their gangs, | 0:18:03 | 0:18:05 | |
the otters will actively harass these great reptiles. | 0:18:05 | 0:18:10 | |
Team play wins the day. | 0:18:26 | 0:18:29 | |
The Mara River, snaking across the plains of East Africa. | 0:18:40 | 0:18:46 | |
As the land flattens out, rivers slow down and lose their destructive power. | 0:18:47 | 0:18:53 | |
Now they're carrying heavy loads of sediment that stains their waters brown. | 0:18:53 | 0:18:59 | |
Lines of wildebeest are on the march. | 0:19:11 | 0:19:15 | |
Each year, nearly two million animals | 0:19:20 | 0:19:23 | |
migrate across the Serengeti plains in search of fresh green pastures. | 0:19:23 | 0:19:28 | |
For these thirsty herds, the rivers are not only a vitalsource of drinking water | 0:19:28 | 0:19:33 | |
but also dangerous obstacles. | 0:19:33 | 0:19:36 | |
This is one of the largest concentrations of Nile crocodiles in Africa, | 0:19:55 | 0:20:02 | |
giants that grow over five metres long. | 0:20:02 | 0:20:05 | |
From memory, the crocodiles know the wildebeest are coming, and gather in anticipation. | 0:20:21 | 0:20:28 | |
The crocodile's jaws snap tight, like a steel trap. | 0:21:30 | 0:21:34 | |
Once they have a hold they never let go. | 0:21:34 | 0:21:37 | |
It took over an hour to drown this full grown bull. | 0:21:49 | 0:21:53 | |
To surprise their prey, the crocodiles must strike with lightning speed. | 0:22:01 | 0:22:07 | |
Here, only the narrowest line | 0:22:31 | 0:22:35 | |
separates life from death. | 0:22:35 | 0:22:38 | |
Most rivers drain into the sea, but some end their journey in vast lakes. | 0:23:13 | 0:23:20 | |
Worldwide, lakes hold 20 times more fresh water than all the rivers. | 0:23:23 | 0:23:29 | |
The East African Rift Valley holds three of the world's largest, | 0:23:31 | 0:23:37 | |
Malawi, Tanganyika and Victoria. | 0:23:37 | 0:23:40 | |
Lake Malawi, the smallest of the three, is still bigger than Wales. | 0:23:42 | 0:23:48 | |
Its tropical waters teem with more fish species than any other lake. | 0:23:59 | 0:24:06 | |
There are 850 different cichlids alone, | 0:24:06 | 0:24:10 | |
all of which evolved from just one single ancestor | 0:24:10 | 0:24:13 | |
isolated here thousands of years ago. | 0:24:13 | 0:24:16 | |
These two-metre wide craters are fish-made. | 0:24:31 | 0:24:35 | |
Fastidiously maintained by the males, these bowers are courtship arenas. | 0:24:45 | 0:24:50 | |
Cichlids are caring parents. | 0:25:03 | 0:25:06 | |
Brooding young in their mouth is a very effective way of protecting them. | 0:25:10 | 0:25:15 | |
This lake can be a dangerous place. | 0:25:16 | 0:25:19 | |
After dark, predatory dolphin fish emerge from their daytime lairs among the rocks. | 0:25:32 | 0:25:37 | |
Like packs of sharks, they are on the prowl for sleeping cichlids. | 0:25:44 | 0:25:49 | |
In the darkness, | 0:25:55 | 0:25:58 | |
these electric fish hunt by detecting distortions in the electric field they create | 0:25:58 | 0:26:03 | |
around their bodies. | 0:26:03 | 0:26:05 | |
Any cichlid that ventures out will be snapped up. | 0:26:22 | 0:26:26 | |
The floor of Lake Malawi drops 700 metres into an abyss. | 0:26:47 | 0:26:53 | |
Here in this dead zone, the larvae of lake fly midges hide out away from predators. | 0:27:01 | 0:27:07 | |
In the rainy season, they balloon up to the surface and undergo a magical transformation. | 0:27:09 | 0:27:16 | |
At dawn, the first adult midges start to break out. | 0:27:25 | 0:27:30 | |
Soon, millions upon millions of newly hatched lake flies are taking to the wing. | 0:27:34 | 0:27:40 | |
Early explorers told tales of lakes that smoked, as if on fire. | 0:27:50 | 0:27:57 | |
But these spiralling columns, hundreds of metres high, are mating flies. | 0:27:57 | 0:28:03 | |
Once the flies have mated, they will all drop to the water surface, release their eggs and die. | 0:28:17 | 0:28:24 | |
Malawi may look like an inland sea, | 0:28:33 | 0:28:37 | |
but it is dwarfed by the world's largest lake, | 0:28:37 | 0:28:42 | |
Baikal in eastern Siberia. | 0:28:42 | 0:28:45 | |
400 miles long and over a mile deep, | 0:28:55 | 0:28:59 | |
Baikal contains one fifth of all the freshwater | 0:28:59 | 0:29:02 | |
found in our planet's lakes and rivers. | 0:29:02 | 0:29:05 | |
For five months of the year, it is sealed by an ice sheet over a metre thick. | 0:29:08 | 0:29:14 | |
Baikal is the oldest lake in the world | 0:29:29 | 0:29:32 | |
and despite the harsh conditions, life flourishes here in isolation. | 0:29:32 | 0:29:38 | |
80% of its species are found nowhere else on Earth, | 0:29:39 | 0:29:43 | |
including the world's only fresh water seal. | 0:29:43 | 0:29:47 | |
With this seal and its marine-like forests of sponges, | 0:29:53 | 0:29:58 | |
Baikal seems more like an ocean than a lake. | 0:29:58 | 0:30:01 | |
There are shrimp-like crustaceans, giant amphipods as large as mice. | 0:30:20 | 0:30:26 | |
They are the key scavengers in this lake. | 0:30:31 | 0:30:35 | |
The water here is just too cold for the bacteria that normally decompose the dead. | 0:30:35 | 0:30:40 | |
Most rivers do not end in lakes but continue their journey to the sea. | 0:30:54 | 0:31:00 | |
The planet's indisputable super-river is the Amazon. | 0:31:05 | 0:31:10 | |
It carries as much water as the next top-ten biggest rivers combined. | 0:31:12 | 0:31:18 | |
Rising in the Peruvian Andes, its main trunk flows eastwards across Brazil. | 0:31:21 | 0:31:27 | |
On its way, the system drains a third of South America. | 0:31:27 | 0:31:33 | |
Eventually over 4,000 miles from its source it empties into the Atlantic Ocean. | 0:31:33 | 0:31:40 | |
The Amazon transports a billion tons of sediment a year, sediment clearly visible | 0:31:47 | 0:31:54 | |
at the "mixing of the waters" - where one massive tributary, the Rio Negro, flows into the main river. | 0:31:54 | 0:32:01 | |
Its waters are wonderfully rich. | 0:32:07 | 0:32:10 | |
To date, over 3,000 species of their fish have been described, | 0:32:10 | 0:32:14 | |
more than in the whole of the Atlantic Ocean. | 0:32:14 | 0:32:18 | |
The Amazon is so large and rich in fish that it can support freshwater dolphins. | 0:32:45 | 0:32:51 | |
These botos are huge, two-and-a-half metres long. | 0:32:51 | 0:32:55 | |
In these murky waters, they rely on sonar to navigate and hunt. | 0:32:58 | 0:33:03 | |
They work together to drive shoals of fish into the shallows. | 0:33:21 | 0:33:26 | |
Botos are highly social, and in the breeding season there is stiff competition for mates. | 0:34:27 | 0:34:34 | |
The males hold court in an unique way. | 0:34:34 | 0:34:38 | |
They pick up rocks in their jaws and flaunt them to their attending females. | 0:34:48 | 0:34:53 | |
Maybe each male is trying to show how strong and dextrous he is | 0:34:59 | 0:35:03 | |
and that he therefore is the best father a female could have for her young. | 0:35:03 | 0:35:08 | |
Successful displays lead to mating. | 0:35:18 | 0:35:22 | |
Even for giant rivers like the Amazon | 0:35:36 | 0:35:39 | |
the journey to the sea is not always smooth or uninterrupted. | 0:35:39 | 0:35:44 | |
Iguassu Falls, on the border of Brazil and Argentina, | 0:36:12 | 0:36:17 | |
is one of the widest waterfalls in the world, one-and-a-half miles across. | 0:36:17 | 0:36:22 | |
In flood, 13 million litres of water spill over every second. | 0:36:28 | 0:36:33 | |
All the world's great broad waterfalls - | 0:37:19 | 0:37:23 | |
Victoria, Niagara and here Iguassu, | 0:37:23 | 0:37:26 | |
are only found in the lower courses of their rivers. | 0:37:26 | 0:37:30 | |
In their final stages, rivers broaden and flow wearily across their flat flood plains. | 0:37:38 | 0:37:46 | |
Each wet season here in Brazil, | 0:37:46 | 0:37:48 | |
the Parana river overflows its banks and floods an area the size of England. | 0:37:48 | 0:37:54 | |
The Pantanal, the world's largest wetland. | 0:37:57 | 0:38:02 | |
In these slow-flowing waters, aquatic plants flourish, | 0:38:08 | 0:38:13 | |
like the Victorian giant water lily, with leaves two metres across. | 0:38:13 | 0:38:18 | |
These underwater forests are nursery grounds for fish. | 0:38:40 | 0:38:45 | |
Over 300 species breed here, including red-bellied piranha. | 0:38:47 | 0:38:53 | |
And other predators, like the spectacled caiman. | 0:38:57 | 0:39:01 | |
Ripening fig trees, overhanging the water's edge, | 0:39:26 | 0:39:30 | |
provide welcome food for shoals of hungry fish. | 0:39:30 | 0:39:34 | |
The commotion attracts dorado, known locally as the river tiger. | 0:39:40 | 0:39:46 | |
They patrol the feeding shoals, looking for a chance to strike. | 0:39:54 | 0:40:00 | |
And waiting in the wings, ready to pick off any injured fish, are the piranhas. | 0:40:36 | 0:40:42 | |
A feeding frenzy quickly develops. | 0:40:54 | 0:40:57 | |
Piranha can strip a fish to the bone in minutes. | 0:41:15 | 0:41:20 | |
Great numbers of fish sustain vast flocks of water birds. | 0:41:25 | 0:41:31 | |
The roseate spoonbill is just one of the 650 bird species found in the Pantanal. | 0:41:34 | 0:41:41 | |
They nest alongside wood storks, in colonies thousands strong. | 0:41:48 | 0:41:54 | |
Spectacled caiman linger below, waiting for a meal to fall out of the sky. | 0:42:21 | 0:42:28 | |
When rivers finally reach the sea, they slow down, release their sediment and build deltas. | 0:43:23 | 0:43:29 | |
In Bangladesh, the Ganges and Brahmaputra rivers join to form the world's biggest. | 0:43:31 | 0:43:37 | |
Every year, almost 2,000 million tonnes of sediment, | 0:43:39 | 0:43:44 | |
eroded from the Himalayas is delivered to the ocean. | 0:43:44 | 0:43:48 | |
At the delta's mouth, the largest mangrove forest in the world, the Sunderbans. | 0:43:53 | 0:43:59 | |
These extraordinary forests spring up throughout the tropics | 0:44:05 | 0:44:10 | |
in these tidal zones where rivers meet the sea. | 0:44:10 | 0:44:13 | |
Crab-eating macaques are mangrove specialists. | 0:44:23 | 0:44:27 | |
In Indonesia, | 0:44:31 | 0:44:33 | |
these monkeys have adopted a unique amphibious lifestyle. | 0:44:33 | 0:44:36 | |
They fish out fallen food. | 0:44:44 | 0:44:48 | |
The troop also uses the waters to cool off during the heat of the day. | 0:45:10 | 0:45:15 | |
But the channels are also the playground for restless young macaques. | 0:45:21 | 0:45:25 | |
Some of the young have even taken to underwater swimming. | 0:45:31 | 0:45:36 | |
They can stay down for more than 30 seconds | 0:45:41 | 0:45:44 | |
and appear to do this just for fun. | 0:45:44 | 0:45:47 | |
Yet these swimming skills, acquired during play, | 0:45:59 | 0:46:03 | |
will certainly be useful later in life in these flooded mangrove forests. | 0:46:03 | 0:46:08 | |
In cooler climes, mud laid down in estuaries | 0:46:17 | 0:46:20 | |
is colonised by salt-marsh grasses | 0:46:20 | 0:46:23 | |
and form one of the most productive habitats on the planet. | 0:46:23 | 0:46:27 | |
400,000 greater snow geese flock to the estuaries along the Atlantic coast of the United States | 0:46:56 | 0:47:04 | |
to rest and refuel on their long migratory journeys. | 0:47:04 | 0:47:08 | |
This is the end of the rivers' journey. | 0:47:43 | 0:47:47 | |
Collectively they've worn down mountains and carried them to the sea. | 0:47:47 | 0:47:52 | |
And all along the way, their fresh water has brought life in abundance | 0:47:52 | 0:47:57 | |
to planet Earth. | 0:47:57 | 0:47:59 | |
Filming piranhas in a feeding frenzy in the wild | 0:48:32 | 0:48:36 | |
has rarely, if ever, been attempted | 0:48:36 | 0:48:38 | |
and it was to prove the freshwater team's greatest challenge. | 0:48:38 | 0:48:41 | |
Welcome to the piranhas' country. | 0:48:41 | 0:48:44 | |
Arriving in the Pantanal | 0:48:44 | 0:48:46 | |
with over a tonne of dive and camera equipment, | 0:48:46 | 0:48:51 | |
producer Mark Brownlow and his team were heading into uncharted waters which had never been dived before. | 0:48:51 | 0:48:58 | |
The piranha lives everywhere. It is the most common fish here. | 0:48:58 | 0:49:02 | |
I have a gift for Peter. This will give a good idea about the size. | 0:49:02 | 0:49:07 | |
Oh, wow! It's got teeth! | 0:49:07 | 0:49:10 | |
It does look like a white shark in miniature! | 0:49:11 | 0:49:14 | |
They are very dangerous when they are... | 0:49:14 | 0:49:17 | |
trapped in small groups. At those moments, I would not dive with them. | 0:49:17 | 0:49:22 | |
There are many opinions and myths associated with the dangers of piranhas, | 0:49:22 | 0:49:28 | |
but the team were confident that they should be able to film the feeding frenzy safely. | 0:49:28 | 0:49:33 | |
Haroldo had recced this never-ending maze of river channels | 0:49:33 | 0:49:37 | |
a month previously, and thought he knew where to find the piranhas. | 0:49:37 | 0:49:41 | |
Peter it is highly experienced and has filmed many so-called dangers fish. | 0:49:44 | 0:49:50 | |
He at least remained sceptical about the risks of diving with piranhas. | 0:49:50 | 0:49:54 | |
-How was that Pete? -Well, interesting, different, no piranhas. | 0:49:56 | 0:50:00 | |
In fact, the main problems seem to be finding any piranhas in the first place | 0:50:01 | 0:50:05 | |
and the murky conditions underwater. | 0:50:05 | 0:50:08 | |
What's the vis like, Pete? | 0:50:12 | 0:50:15 | |
About three bad feet. | 0:50:15 | 0:50:17 | |
OK. | 0:50:17 | 0:50:19 | |
Three bad feet. Dusty, dirty, brown, dark. | 0:50:19 | 0:50:24 | |
-Forget it. -No. -Forget it. | 0:50:27 | 0:50:31 | |
After two days of fruitless searching, tempers were beginning to fray. | 0:50:31 | 0:50:37 | |
This is so frustrating. | 0:50:37 | 0:50:40 | |
Stop it. | 0:50:40 | 0:50:42 | |
It's just... | 0:50:42 | 0:50:45 | |
a complete waste of time. | 0:50:45 | 0:50:47 | |
Well, these voracious monsters haven't turned up yet. | 0:50:48 | 0:50:52 | |
I don't believe the Hollywood stories. | 0:50:52 | 0:50:54 | |
We just haven't seen any piranhas and we're in hot piranha territory, so we're told. | 0:50:54 | 0:51:00 | |
I don't believe they exist. | 0:51:00 | 0:51:02 | |
MEN SPEAKING | 0:51:02 | 0:51:04 | |
Unfortunately, we have arrived at the wrong moment. There is too much water around here. | 0:51:08 | 0:51:13 | |
Piranhas are far away from the main stream, where the water is clear. | 0:51:13 | 0:51:17 | |
We must find another place. | 0:51:17 | 0:51:19 | |
Resorting to a spotter plane, they surveyed vast tracts of wetland | 0:51:24 | 0:51:29 | |
looking for pools of clean water and potential piranha habitat. | 0:51:29 | 0:51:34 | |
Back on the river and it was beginning to feel more like piranha country. | 0:51:38 | 0:51:43 | |
These fish are part of the staple diet here. | 0:51:43 | 0:51:46 | |
But sometimes dinner bites back. | 0:51:46 | 0:51:50 | |
After several minutes, she thought the piranha was dead | 0:51:50 | 0:51:54 | |
and she was removing the fish from the boat and the fish got her. | 0:51:54 | 0:51:59 | |
The big bite here. | 0:51:59 | 0:52:02 | |
He was just removing the hook from another piranha and approach the second one | 0:52:02 | 0:52:07 | |
that was supposed to be dead on the boat, and this one took a bite here. | 0:52:07 | 0:52:13 | |
They are very fast. | 0:52:13 | 0:52:15 | |
Like biting machines. | 0:52:17 | 0:52:19 | |
A single piranha bite is one thing, but what about a hungry shoal underwater? | 0:52:19 | 0:52:26 | |
I would advise you to not go further away under the vegetation, where it is very dark, | 0:52:26 | 0:52:31 | |
far from the mainstream. | 0:52:31 | 0:52:33 | |
Not...for a long time because they are approaching you, | 0:52:35 | 0:52:39 | |
circling, | 0:52:39 | 0:52:41 | |
and they come, curiously... and even try to bite. | 0:52:41 | 0:52:43 | |
At last, Peter was diving with piranhas, | 0:52:52 | 0:52:55 | |
but far from being any danger, they appeared to shy away from him. | 0:52:55 | 0:52:59 | |
They just go further and further and further into the dark, and... Very difficult. | 0:53:06 | 0:53:13 | |
-Are they are avoiding you? -They seem to be. I don't think they're used to divers. | 0:53:13 | 0:53:17 | |
Without a single shot in ten days, the pressure was building for Mark. | 0:53:18 | 0:53:22 | |
A change in tactic was called for and the team decided to try diving at night. | 0:53:22 | 0:53:29 | |
In this eerie underworld, they discovered shoals of fish | 0:53:56 | 0:54:01 | |
under the thick mats of weed, but the piranhas remained as elusive as ever. | 0:54:01 | 0:54:07 | |
Instead they found another predator, the spectacled caiman, | 0:54:10 | 0:54:14 | |
and decided to try to film these crocodilians the following morning. | 0:54:14 | 0:54:19 | |
Above three metres, crocodiles are considered too dangerous to dive with | 0:54:32 | 0:54:37 | |
but at just two metres, these caiman were the perfect subject. | 0:54:37 | 0:54:41 | |
Big enough to impress but too small to be a threat. | 0:54:41 | 0:54:45 | |
One came quite close, crawled over the top of the camera and chewed my hood. | 0:54:55 | 0:54:59 | |
Must have thought it was a purple fish or something! | 0:54:59 | 0:55:03 | |
Filming the caiman was a great morale booster for the team. | 0:55:03 | 0:55:08 | |
They returned to civilisation in high spirits, where piranhas still remain top of the menu. | 0:55:08 | 0:55:14 | |
-Piranha soup. -OK. | 0:55:14 | 0:55:17 | |
This is made especially from the head of the piranha, and it makes you strong. | 0:55:18 | 0:55:24 | |
You are going to become a macho Brazilian. | 0:55:24 | 0:55:27 | |
Macho man. Very strong. | 0:55:27 | 0:55:30 | |
Haroldo had received a tip-off from local fishermen the night before | 0:55:36 | 0:55:41 | |
of a promising piranha hot spot. | 0:55:41 | 0:55:44 | |
But time was running out. | 0:55:44 | 0:55:46 | |
-Can you see any piranha? -No, not yet. | 0:55:51 | 0:55:57 | |
At first it appeared to be another fisherman's tale, but suddenly their luck was about to change. | 0:55:57 | 0:56:02 | |
I can see the piranhas from here. | 0:56:04 | 0:56:07 | |
OK, good luck, Pete. | 0:56:07 | 0:56:09 | |
Fish activity had attracted good numbers of piranhas | 0:56:14 | 0:56:17 | |
out of the shadows, and they were starting to feed. | 0:56:17 | 0:56:21 | |
Yes! | 0:56:24 | 0:56:26 | |
Clear water, | 0:56:27 | 0:56:29 | |
good visibility and the piranhas in frenzy. This is what we want. | 0:56:29 | 0:56:34 | |
At last, Peter was in position to film unique wild piranha behaviour. | 0:56:34 | 0:56:41 | |
When they are in group...attacking, you must consider them dangerous. | 0:56:51 | 0:56:55 | |
Despite Haroldo's concerns, the piranhas were only interested in their fish prey. | 0:57:04 | 0:57:10 | |
As Peter expected, they never lived up to their frightening reputation | 0:57:15 | 0:57:20 | |
but he did develop a new respect for piranhas as highly effective group predators. | 0:57:20 | 0:57:26 | |
-How was that? -That went in about 20 seconds. | 0:57:32 | 0:57:36 | |
So you got a bit of respect for these guys now? | 0:57:36 | 0:57:39 | |
A number of those attacking en masse, | 0:57:39 | 0:57:41 | |
I believe they will strip a horse's head down in three minutes, yes. No problem. | 0:57:41 | 0:57:46 | |
-You still got all your fingers? -Yep. | 0:57:46 | 0:57:49 | |
Yep. | 0:57:50 | 0:57:51 |