Our Planet | High Seas | FULL EPISODE | Netflix

NETFLIX ORIGINAL DOCUMENTARIES Just 50 years ago, we finally ventured to the moon. For the first time ever, we're looking at our planet. Since then, the human population has more than doubled. This series will celebrate the enduring wonders of nature, and reveal what we must conserve to make sure people and nature thrive. Dolphins. You panic. It is chased by false killer whales. Dolphins are faster on short bursts. But the whales that hunt them have endurance. As the killer whales approach them, the dolphins take a sudden turn
to avoid predatory whales. These amazing events happen far from land, where many of us wouldn't venture to go.

This is the ocean far from the borders of any country. Uncensored and unruly and not subject to the law. "The High Seas" Nothing represents our relationship to the high seas better than a blue whale. It weighs more than 200 tons and reaches a length of 30 meters, and it is considered the largest animal in existence. However, a large part of her life remains a
mystery to us.

Blue whales live far from the seas, roaming every ocean from the equator
to the poles. We just recently discovered some special places
where you are close to the beach. The Gulf of California, on the Pacific coast of Mexico. This is a sanctuary for blue whales. Meet the largest baby in the world. Little blue whale. She is only a month old, is already 8 meters long and weighs 6 tons. Her mother protects her with a protective fin. They raised one on the other,
proud of the strong bond between them. This is the most
intimate footage ever captured of a blue whale mother and her baby.

This female gives birth once every 2 or 3 years, so every baby blue whale is very precious. A baby blue whale will grow 3 tons per month. Previously,
there were more than 300,000 blue whales, but in the previous century, they were hunted mercilessly, and only a few thousand survived. Blue whales are now protected, and their numbers are slowly increasing. Soon, this little girl will leave
these sheltered waters to roam the high seas. We once thought the high seas were
too big to destroy, but now we know their
ocean habitat is more threatened than ever.

Here in the great blue ocean,
some pure places remain to remind us of the richness that oceans
can be. Spinning dolphins. In the Pacific Ocean,
off the coast of Costa Rica, in Central America, they begin to gather in huge numbers. Spinner dolphins live in flocks, groups of individuals
with complex social relationships. Dolphins are always touching and talking to each other, using a language of clicks and whistles. It's being tracked by yellowfin tuna. Tuna depends on dolphins to find food. Everyone is looking for the same prey. Lantern fish. The most numerous fish on the planet, no larger than the length of a finger, lantern fish spend most of their time
hiding in the depths.

So, despite their amazing abundance,
we don't hunt them. It is one of the few fish
that still thrives. As it approaches its prey, the
swarm of dolphins increases in number. This swarm may contain more than 10,000 dolphins. For every dolphin that swims to the surface,
there are 20 more at the bottom. Using echolocation,
a type of sonar, dolphins can
spot lantern fish at the bottom and push them to the surface. It guards the underside of the swarm to prevent its prey from escaping back to the bottom. Once the dolphins are saturated, there is still more
for other predatory fish.

Flying rays pounce. To increase their yield, they
attack rays in formation. A wall of mouths scooping prey. Because we don't catch them, lantern fish and predatory fish thrive. All those fishing fish
did not affect the huge flock. Most life in the open ocean is
concentrated in the thin surface layer, where the sun's rays are strongest. This shallow, sunny depth is surprisingly fertile. Dolphins excrete their droppings, which
plays a vital role in recycling nutrients
from the depths to the surface.

This marine dung helps support the basis of all life
in the open ocean. Phytoplankton. They are microscopic plants. It combines nutrients in seawater
with energy from the sun to form the basis of every food chain here. So, all animals, from the smallest fish
to the largest whale, ultimately depend on these tiny plants
for food. In turn, the
phytoplankton benefit from the nutrients that these animals excrete. Most importantly, phytoplankton produce
half the oxygen in the air we breathe. So, wherever you live, you can thank these adorable little plants for every half of the air you breathe. Under ideal conditions, they can flower to such an extent that vast swathes of the ocean
turn green. Phytoplankton
play a very important role in cloud formation. Moisture that evaporates from the ocean condenses around tiny particles
made by phytoplankton. These droplets accumulate to grow into giant clouds. It can rise up to 20 kilometers
into the atmosphere.

These oceanic clouds reflect solar energy
back into space, helping to protect the Earth
from rising temperatures. Oceans not only produce
half of the oxygen we breathe, they control weather and climate, and transport life-giving fresh water
around the world. The high seas are the life support system of our planet. It has this power simply because it is so vast. Oceans cover two-thirds of the planet, and
that's just the surface. It's also very deep. We can only
access this unexplored space in special submarines
that can withstand crushing pressure. The average depth of the oceans is about 4 km, and the depth of the deepest point is more than 10 km. Depth makes up 95 percent
of all space available for life. This strange world
is the home of strange and mysterious creatures. This creature is one of the strangest. For years, we didn't know they existed
until sometimes someone showed up on the beach.

Almost no one saw her alive. Oyster fish. It is 10 meters long. Suspended vertically, using rhythmic waves
along its dorsal fin, oarfish move easily
between the surface and the depths. There is not enough light for plants to grow
at depths of more than 200 metres, so seabed fish depend
on food that sinks from the surface: sea ice. A jellyfish wanders in the depths of the sea and its tentacles are stretched out to trap prey. It lives in all oceans,
up to 7 kilometers deep. The depth is very wide, and these jellyfish may be the most numerous. We used to think that the depths
didn't support much life, but now scientists think the fish that live here
are 10 times more than we thought. So, there must be many types for us to discover. This crustacean of the depths,
'Cystisoma', is transparent as glass. Hiding in plain sight. At the limits of light in the depths, disappearance may be the difference between finding a meal
and becoming a meal. His huge eyes strained to see in the dark. No light reaches deeper than a thousand meters. In this darkness, beings make their own light.

Vital lighting. A shining decoy lures victims
into the teeth of a terrifying dragonfish. In most missions to the depth,
something new surprises us. Anchovy fish in the depths of the sea. Its amazing array of sensors will detect even the slightest movements of prey
drawn into its trap. Here, in the deep central waters, the
predatory fish are patient. Finally, we reach the bottom, about a thousand meters deep. The deep-sea plains cover
more than half of the Earth's surface, yet we know more about the surface of the moon
than we do about it. The Chimera, an ancient relative of the shark, is up to two meters long. Few species of this size
can live on the arid seafloor. Moving slowly to conserve energy, they use electrical sensors around their mouths to search for scarce prey
buried in sediment. The rocky outcrops rising
from the sea floor can be an oasis in this desert. This sand tiger shark came here
for good reason. 500 meters below sea level off
the coast of Florida, a rare place where life thrives. "Lophilia". Deep sea coral reefs. We used to think that coral can only be found in
warm, shallow and sunny waters.

However, deep sea reefs cover an
area of the sea floor that is large than that of shallow water . These underwater forests provide sanctuary and food for a thriving community
of marine life. It is also home to
many deep sea creatures. Coral consists of many organisms
that look like anemones, it is a type of mediocrity that lives in colonies
linked by a solid skeleton. The meadow has stinging cells in its tentacles that lie in the place of passing prey, its only source of food. But it does not always manage to keep its catch. The many thistles have made their home
among the coral. She inspects the Medikh for freshly caught bites, and steals
them from the coral. But this theft is a protection tax. Sea urchins attack and eat coral. It's time for revenge. The hedgehog may have protective thorns,
but the worm has a shocking weapon, and it sets out to attack. The hedgehog was bid farewell, and the worm saved its home.

Like most creatures in the deep sea, this coral grows very slowly. Some reefs may be 40,000 years old. Although it is found at enormous depth,
this coral is still within our reach. Fishing nets from the deep sea
that have been dragged across the sea floor turn fragile reefs into rubble. Half of all deep-sea coral
has already been destroyed. These societies will need centuries to recover. Far from any country's borders, the high seas are untamed and hardly protected. The wildest is the Southern Ocean. The habitat of the albatross. Albatross lives a secluded life far out at sea. They can travel hundreds of kilometers a day, usually for weeks at a time, in search of food. A dead sea lion is a rare opportunity. Giant petrels are the first to arrive. It uses its strong beak to slit a carcass. Known as seabirds of prey, they are the best carrion eaters in Antarctic waters. The black-browed albatross has an amazing sense of smell, and can detect scents from 20 kilometers away. A black forehead albatross should fill his mouth
as soon as he can. They are bullied by the giant
and most aggressive petrels.

Wilson's petrels are too small to compete, picking up crumbs from the edges of the feast. These weak petrels
are the most numerous of all seabirds because they are found in all the oceans. When these usually solitary birds congregate
in this way, we appreciate the richness of life that the high seas sustain. Mobile albatross finally arrives. It shields other birds with its size and
uses its gigantic size and 3 meter
wingspan to dominate the space. Even giant petrels are retreating. The roving albatross finally gets its share. In recent years,
albatross and other seabirds are constantly declining in numbers. Her need to travel great distances exposes her to the dangers of the ocean, which suffers from poor organization
and overexploitation. It's a problem for all high seas fishermen. These giants cross oceans in search of food. It can be more than 3 meters long and
weigh half a ton. Bluefin tuna. It's perfectly streamlined and
body primed for speed.

They hunt in large flocks,
containing hundreds of them. The target is a swarm of anchovies. Gently collect the anchovies into a small ball at the surface, being careful not to panic. Then attack. This is a carefully curated hunt. The tuna fish take turns, attacking from the same direction
to keep the anchovies on the run. After filling its mouth with food, each tuna separates
to take a turn in the rear. You continue to attack wave after wave. For their destructive power and speed, bluefin tuna are
among the ocean's most impressive fishermen.

It is also one of the most valuable fish in the sea. So valuable that a single bluefin tuna
could be sold in Japan for over a million dollars. So, perhaps it was inevitable that they were hunted to near extinction. It is not only bluefin tuna that is in danger. Decades of overfishing have left many fish stocks in sharp decline. We lost a third of the fish altogether. Plastic pollution is a huge problem for our oceans, but industrial overfishing is even more dangerous.

If we continue to harvest the seas in this way, not only will the fisheries collapse. The entire ocean system may follow. 100 million sharks are killed every year, just to make shark fin soup. 90% of the ocean's giant fishermen are gone. Without them at the top of the food chain,
the entire marine community would diminish and change beyond recognition. Squid is increasingly replacing fish. We have exhausted the fish that prey on them and their competition, and squid dominate and dominate, a sign of a serious imbalance in the oceans. Squids multiply quickly,
and have many young ones that grow quickly, so they can quickly take advantage of the gaps
left by the fish we have caught. They lay their eggs in bags on the sea floor. Youngsters grow more quickly
in these warm, shallow waters. With these drastic changes in marine food , predators have to adapt. Sea lions prefer to devour energy-rich prey, such as anchovies and sardines, but due to their small numbers, they are forced to rely more
on food than squid.

We will also be forced to change the seafood
we eat if we continue to fish as we do. But if we fish in the oceans
in a sustainable way, they can be incredibly productive, and provide us with plenty of food. There are already indications that the oceans have the power to recover incredibly quickly. Humpback whales. They live in all oceans, migrating across the high seas,
from their polar feeding zones to the equatorial tropics, where they breed. However, whales did not
always enjoy this freedom. In the past,
there were more than 100,000 humpback whales in the oceans, but in the last century, they
were hunted to the point of extinction. Only a few thousand survived the massacre. Huge popular protests led to the ban on commercial whaling finally
in 1986. Since then,
the humpback whale population has been constantly increasing. It goes back to its ancestral food area, like that off the coast of South Africa.

They congregate to take
advantage of the seasonal abundance of krill, which are crustaceans similar to crustaceans. Whales take their mouthfuls of water,
trapping krill with sieves of tiny spicules along their jaws. Each whale can eat more than a ton per day. With food plentiful, fur seals come to get their share. We would not have imagined seeing these amazing scenes
a few years ago. They form huge groups, made up of hundreds. This is the largest whale population in a century. The whales recycle nutrients
that fertilize the surface of the water, which supports the growth of phytoplankton that in turn feed the krill
in a perfect self-sustaining cycle.

We now know that a healthy community
of large predators, such as whales, dolphins, tuna and sharks, is essential to an efficient ocean. An effective ocean is essential to the health of our planet and humanity. In an astonishing recovery, humpback whales are almost
back to their original numbers. But during that time, we've done more damage to the ocean than at any time in human history. Only with global cooperation will our oceans recover and thrive again. We saved the whales with an international agreement. Now, it's time to save our oceans. Please visit the onscreen website to find out what we need to do now
to protect the high seas. Translation of "Naji Behnan".

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