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  • Ever wanted to take a dive into the deepest parts of the ocean?

  • Well, today you're gonna have this opportunity!

  • Now, how good are you at holding your breath?

  • Not that good?

  • Well not to worry.

  • Hop on board of my submersible craft and join me in the voyage to the depths!

  • Ready?

  • Let's dive!

  • Right now, just below the surface, you see that life is thriving here.

  • Fish and marine animals abound, andhey there! — swimmers are waving at us.

  • But we won't be staying here for long.

  • Buh-bye!

  • At 65 ft, there's a whole new world opening before your eyes: shallow coral reefs are

  • standing beautifully not far from the shore.

  • And hey, there are people here again!

  • It's scuba divers this time, though.

  • Water pressure isn't kind to divers without special equipment.

  • 130 ft is the depth where we say goodbye even to recreational scuba diversit's the

  • maximum allowed for them.

  • Take care, guys!

  • 200 ftand here's the first orca!

  • These whales inhabit the relatively shallow waters of almost every sea and ocean in the

  • world.

  • Did you know they're the apex predators, by the way?

  • It means they have no natural enemies and no one can take them down.

  • At 230 ft we meet whale sharksthe largest known fish species, weighing up to 60 tons.

  • And they're also quite long-livers: well yeah I guess their livers are long at that,

  • but actually it's about their life expectancy: they can live about 130 years.

  • Now look outside: if you see a scuba diver, it's a real pro, because at 330 ft they'll

  • have to be very cautious not to get decompression sickness.

  • It occurs if you rise too quickly to the surface.

  • And if you're lucky, you can also see a giant Pacific octopusit dwells in cool

  • waters starting this deep and going down as far as 6,600 ft.

  • And now we're entering the dark part of the ocean: at 490 ft, just 1% of the light

  • from the surface reaches us.

  • All the rest is absorbed by water.

  • Everything that's deeper will get darker and darker still.

  • Oh, look!

  • At 660 ft, there's a giant oarfish circling our submersible.

  • These creatures are believed to be the source of all sea serpent sightings, and a lot of

  • alliteration!

  • Sometimes they swim up to the surface and freak out sailors and swimmers.

  • No wonder: these fish can reach 36 ft in lengthenough to scare the heck out of me, for

  • example.

  • Okay, now we're at 980 ft andwait, what's that huge and gangling thing out there?

  • Oh, I get it, it's a Japanese spider crab!

  • Why a spider, you ask?

  • Well, just look at those legs and the answer will come to you without further prompts.

  • By the way, there's almost nothing more to them than legs: the body of such a crab

  • is normally just 1.5 ft across.

  • Going deeper now, and at 1,640 ft you're going to see the last of the blue whalesno,

  • not really the last of them, I mean, that's the deepest they can swim.

  • They don't really need to dive that deep for food, which they have in abundance in

  • shallower waters, but they still can.

  • I guess it's just for the sake of showing how awesome they are.

  • After all, they're the largest creatures in the history of Earthboth in the sea

  • and on land!

  • Shh

  • You hear this?

  • These are the sounds fin whales are making to talk to their friends many miles away.

  • They can do this thanks to the SOFAR channel, or Deep Sea Channel, that generally starts

  • at 1,970 ft, but can vary in depth.

  • It's a layer of water where the speed of sound is at its minimum, and sound waves can

  • go thousands of miles before disappearing.

  • At the depth of 2,723 ft we have reached the point where the Burj Khalifa, the tallest

  • building in the world, would not even show its tip on the surface if it were put underwater.

  • Hey let's try that!

  • Now we're entering the really interesting part of the ocean, where no sunlight reaches

  • us, and strange creatures dwell.

  • One of those is the giant squidyes, that legendary type.

  • It inhabits the depths of 2,950 ft.

  • Just imagine the creature with eyes the size of frisbees!

  • Sperm whales hunt down these beasts, but they certainly can fight back.

  • What a sight it would be to see such an encounter!

  • And that's where pitch darkness finally falls on us.

  • The Midnight Zone.

  • The pressure here is so huge that, if you somehow end up being here without a submersible,

  • you'll simply be crushed in a couple of seconds.

  • And that without seeing a thing too.

  • Not the best of prospects.

  • Anyway, at 3,600 ft, there's West Mataone of the deepest ocean volcanoes in the world.

  • Its last eruption was in 2009, and it was even filmed by a remotely operated vehicle!

  • 4,200 ft down below, and we see the ferocious great white sharksthese ultimate predators

  • feel great at such a depth.

  • Their eyesight is rather poor, and they navigate by scent, so they don't really need sunlight

  • to hunt down their prey.

  • “I don't see you, but I'll still eat you.”

  • Brr.

  • Also, the leatherback turtles, the largest turtles in the world, dive at the same depth.

  • I wonder if they do it to tease the great whites?

  • See those huge nets?

  • That's because we're now at the depth of 4,900 ft where thecatch-allfishing

  • method is used.

  • The nets are here to be dragged along the ocean floor, catching everything unfortunate

  • enough to be caught.

  • I'll let you decide how detrimental this is to the ocean life here.

  • At 6,000 ft, if we were in the Grand Canyon, we'd be sitting at its lowest and deepest

  • point.

  • Imagine that all of its crevasses have been thoroughly filled with water, and you'll

  • get the perfect picture.

  • Now, if we're really careful, then at the depth of 6,600 ft, we'll be able to see

  • the black dragonfish — a nightmarish creature that dwells in the deep and dark parts of

  • the ocean.

  • And trust me, it's better off staying right there!

  • It looks like something from a horror movie, and I'd rather it never crossed my path.

  • At 7,400 ft we'll be saying goodbye to sperm whalesthis is the deepest point they

  • can dive, and frankly, they have no real business at such a depth.

  • Maybe they hunt the black dragonfish, of course, orit hunts them?

  • Nah, the difference in size is too big: sperm whales can reach 62 ft in length, which makes

  • them the largest toothed whales in the world.

  • Not many creatures can counter that.

  • It's good that our submersible has a powerful floodlightwithout it, we wouldn't have

  • been able to see the astonishing beauty of the deep-sea coral reefs located at the depth

  • of 9,900 ft.

  • They can be found in every ocean, and it's a pity they can't be seen without special

  • deep-sea diving equipment.

  • Okay, going deeper still, and at 12,100 ft we reach the average depth of the World Ocean.

  • From now on, the journey into the real depths beginsthe general ocean floor has been

  • passed, so now it's time to delve into the Abyss.

  • I won't tell you not to be afraid because the scariest creatures of the deep dwell here,

  • below the Midnight Zone.

  • And it doesn't end there: the pressure on the upper limit of the Abyss, at 13,100 ft,

  • is like a whole regiment of elephants stomping on you.

  • Not that you'd have the time to feel it, though.

  • At 15,000 ft, the monsters out of your worst nightmares pop up.

  • Anglerfish, for example, will scare the heck out of anyoneits long and crooked teeth

  • along with a growth on its head that lures the prey are enough to instill fear even in

  • the bravest.

  • But perhaps even more terrible is the creature called the black swallower.

  • It's an eel-like beast that has a very stretchy stomach, and it can swallow prey that's

  • twice its size!

  • I don't know about you, but I'd rather switch off the lights not to see anything

  • this deep in the ocean.

  • What?

  • You want to see it all?

  • ….Alright, if you insist

  • Look down below and you're gonna see the deepest shipwreck ever found: SS Rio Grande

  • in the South Atlantic sunk in 1941 and went as low as 18,900 ft.

  • No wonder it was only found 55 years later!

  • And now the deepest and darkest part of the ocean begins: we're diving into the Mariana

  • trench.

  • Officially, it begins at about 19,700 ft deep.

  • It's both the least explored and the most fascinating area for the scientists and adventurers

  • alike.

  • What lies at the bottom of it?

  • Well, we're about to see, but while we're not yet there, I'll show you something else.

  • For example, here's the deepest fish ever found: it's called a snailfish, and it dwells

  • at 26,000 ft.

  • Its body is translucent, so you can actually see right through its skin.

  • Well, I must say I'm glad we didn't turn off the lights, after allthis little

  • guy is surprisingly cute for a creature that can withstand such pressure.

  • Going lower and deeper, you won't see any other kind of fish or vertebrate animal whatsoever

  • the pressure is just too much for such creatures.

  • But there are shrimps and other invertebratesnot to mention microbesthat can dwell

  • even in the deepest part of the ocean.

  • And that part is the Challenger Deep.

  • It's the bottom of the Mariana trench, and its depth is 35,853 ft.

  • Yes, we've arrived at the very bottom of the Earth.

  • Few people have been here, and very little is known about it yet.

  • But scientists aren't going to stop, and there's hope we'll soon find out what

  • secrets the depths of the ocean hold.

  • How about you?

  • Would you dare explore the ocean on your own, if you had a chance?

  • Let me know down in the comments!

  • Hey, if you learned something new today, then give this video a like and share it with a

  • friend.

  • But don't go deep diving just yet!

  • We have over 2,000 cool videos for you to check out.

  • Just click on this left or right video and enjoy!

  • Stay on the Bright Side of life!

Ever wanted to take a dive into the deepest parts of the ocean?

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海溝(What Would a Trip to the Mariana Trench Be Like?)

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    joey joey 發佈於 2021 年 04 月 30 日
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