- 7 hours ago
The deep ocean is a world where everything changes: creatures grow larger, shapes become stranger, and survival turns life into something almost alien. Down there, sunlight never reaches the seafloor, pressure crushes anything unprepared, and evolution takes a very different path. That’s why the deeper you descend, the more gigantic and terrifying the ocean’s inhabitants become. From colossal predators drifting through the blackness to eerie beings that look like they came straight out of a sci-fi horror movie, these videos reveal just how strange and extreme life in the deep really is. Animation is created by Bright Side.
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Music from TheSoul Sound: https://thesoul-sound.com/
Check our Bright Side podcast on Spotify and leave a positive review! https://open.spotify.com/show/0hUkPxD34jRLrMrJux4VxV
Subscribe to Bright Side: https://goo.gl/rQTJZz
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Our Social Media:
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Instagram: https://www.instagram.com/brightside.official
TikTok: https://www.tiktok.com/@brightside.official?lang=en
Stock materials (photos, footages and other):
https://www.depositphotos.com
https://www.shutterstock.com
https://www.eastnews.ru
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For more videos and articles visit: http://www.brightside.me
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This video is made for entertainment purposes. We do not make any warranties about the completeness, safety and reliability. Any action you take upon the information in this video is strictly at your own risk, and we will not be liable for any damages or losses. It is the viewer's responsibility to use judgement, care and precaution if you plan to replicate.
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00:00If you could dive right into the mysterious darkness of the ocean depths, who knows what you'd come upon?
00:08Legends that are hundreds of years old mention some giant sea monsters hiding deep down below the ocean waves,
00:14like the Kraken, the Loch Ness Monster, the Hydra, Leviathan, and so many more.
00:20Okay, no one has ever seen such monsters, but there are still weird and unusually big sea spiders, squid, worms, and many other animals that grew way more than we'd expected.
00:38Take a look at the colossal squid from sub-Antarctic waters.
00:42It's around 14 times longer than the arrow squid that lives near New Zealand.
00:46And deep down in the Pacific Ocean, there's a sea sponge as big as a minivan.
00:53Oceans contain about 96.5% of all water on our planet.
00:58Up to 80% of all life on Earth we've discovered is under the oceanic waves.
01:03We haven't explored, mapped, or even seen more than 80% of the ocean.
01:08In fact, we've mapped Mars better than we have the ocean bottom.
01:12The pressure down there is insane, and it would make you feel like you're holding up almost 50 jumbo jets.
01:20And temperatures at such depths are extremely low.
01:24Conditions deep below the oceanic surface are harsh, so creatures that live there need to adjust.
01:30That's why many of them grew very, very big to survive.
01:34Creatures that live in cold, dark depths are so big because of a phenomenon called deep-sea gigantism.
01:42The deeper you go below the oceanic surface, the less sunlight there is.
01:47That's why the temperatures drastically fall.
01:50The result of this is increased cell size and longer life of creatures.
01:54Also, these creatures don't have as much oxygen as the marine animals that live in shallower parts.
02:02And their food sources are minimal.
02:04Much of the food they get comes from shallower waters, and only a little bit trickles down to the deeper parts.
02:11And when there's not enough food, being large is an advantage.
02:14Larger creatures can move farther and faster to find something to eat.
02:20Their metabolism works slower.
02:23They don't digest the food that fast, so they can store food and conserve energy for hard times when they can't find anything to eat.
02:31They don't need to regulate their body temperature either, which also helps them save some energy,
02:36which they can then transfer to other body processes.
02:38They mature more slowly and later than those living in shallow waters.
02:44The majority of fish species that dwell in deep waters live 30 years or even more.
02:51Orange ruffy fish, on the other hand, live up to 150 years.
02:57This fella grows 24 feet in length and weighs up to 1.5 tons.
03:02But it grows to be so big for centuries.
03:05They start looking for partners when they're 150 years old.
03:09And they can also live this long because there are not so many predators at such depths.
03:14Also, there are no humans or other things that can disturb them or endanger their existence.
03:20At such depths, the environment is pretty stable.
03:24So many animals there are like living fossils because they probably haven't changed in millions of years.
03:30The first 650 feet of the ocean's depth are considered to be the open ocean.
03:37The majority of the marine life we've discovered lives there, since that's the area the sun can still reach.
03:43And then, as you continue going deeper, you reach the twilight zone.
03:48It seems like nothing lives there.
03:50But at about 820 feet, you see a small oasis of ancient life blooming.
03:58For example, there are sea lilies, animals that have been living at such depths unchanged for millions of years.
04:05Coelacanths, another living fossil, have been living in the ocean for more than 360 million years.
04:11Hagfish haven't changed in a very long time either, for over 300 million years.
04:18This creature lives at depths of 5,500 feet.
04:22They evolved before the rest of the vertebrates, which is why this is the only living animal without jaws or a spine, even though it still has a skull.
04:32Deep-sea creatures can't survive in shallow waters.
04:36They've evolved to live in depths under bigger hydrostatic pressure.
04:40Humans and other organisms that have internal spaces filled with gas would end up crushed if we could go to such depths.
04:48That's why deep-sea divers always need to wear special dive suits designed for surroundings with higher pressure,
04:54even though they're not going that deep to the areas where these giants live.
04:58But near Antarctica, you can see gigantism way closer to the surface.
05:11Like giant sponges, sea slugs, sea spiders the size of a dinner plate, worms, and even some enormous single-celled organisms.
05:19They all tend to chill in shallower waters.
05:23Scientists are not sure why exactly, but they think it could have something to do with oxygen.
05:27Giant species use just a little oxygen, and the waters around Antarctica are pretty rich in it,
05:34which means there's hardly any limit to these animals growing bigger and bigger.
05:40Back to deep-sea creatures.
05:42As mentioned, they had to adjust to strong pressure, so they almost don't have any air gaps in their body at all.
05:48They're mostly water-based, and since water is incompressible, which means it's not something you can compress,
05:56it helps them stay unaffected at such high pressure.
05:59But because of all that, if they were to go up towards the surface, they'd probably swell up, maybe even explode.
06:06Just look at the blobfish, the one that takes the title of the ugliest animal in the world.
06:13It looks normal deep down below the surface, where its natural habitat is.
06:17But when it gets up to the surface, where the pressure is 120 times lower, it changes its shape.
06:23The blobfish doesn't have a skeleton or muscles, so without high deep-sea pressure, it ends up being all floppy and saggy.
06:31The dark oceanic depths are not just scary to watch, but to listen to as well.
06:39In 1997, scientists were trying to find underwater volcanoes located off the South American coast.
06:46During their travels, they recorded one of the loudest noises ever registered.
06:51It was pretty weird, too.
06:52It was so loud, even sensors from more than 3,000 miles away managed to pick it up.
06:58They later called it the Bloop.
07:00It took them 15 years to conclude the sound came from an ice quake.
07:06That's when seismic activity breaks frozen ground.
07:10Water at the bottom of the ocean is not always extremely cold.
07:14There are hydrothermal vents on the seafloor, and the water that comes out of them can be up to 750 degrees Fahrenheit.
07:22Powerful pressure, yep, the same one that would crush you, is something that doesn't allow the water to boil.
07:29There are hundreds of animal species that live near deep-sea hydrothermal vents.
07:36Some of them, such as tube worms, are not like anything we have seen before.
07:41These worms absorb chemicals from vent fluids.
07:44That's how they feed bacteria that live in them.
07:46And in return, those bacteria give them the carbon the tube worms need to survive.
07:52Two-thirds of all of the coral species scientists discovered live in dark, deep, and extremely cold parts of the ocean.
08:02Some even live in parts that are 3 miles deep.
08:05They can survive at low temperatures, such as 28 degrees Fahrenheit.
08:09Some of these cold-water corals are more than 8,000 years old.
08:14They form amazing structures that can rise up to 115 feet tall.
08:18The deep is not just a mysterious world of unusual creatures.
08:24The landscape under the oceanic surface is magnificent, too.
08:28The canyons hiding there make even the Grand Canyon seem small.
08:32For instance, check out the one located in the Bering Sea, the Jem Chug Canyon.
08:37Its vertical relief is more than 8,500 feet deep.
08:41That's huge!
08:42The largest ocean waves are not the ones you can see from the shoreline.
08:49They occur under the surface, and they're called internal waves.
08:53They take place between two water masses that have different densities.
08:57They travel at speeds of thousands of miles per hour and can be 650 feet tall.
09:04It looks like a prehistoric creature that came from the time of dinosaurs.
09:09This scary beast is called the Basking Shark.
09:12It can grow up to 39 feet.
09:14People have only reported three of them in the past 160 years.
09:18The last sighting was in 2015, and before that, about 80 years ago.
09:23These sharks sometimes rise to the surface to filter out small animals,
09:28such as shrimps and other small crustaceans,
09:30when they want to have a nice, tasty seafood dinner.
09:33But when there isn't enough grub at the surface,
09:36they go down to the depths of almost 3,300 feet,
09:39where they tend to stay for months.
09:42Which is something researchers discovered using satellite tags.
09:45Tag, you're it!
09:47Now, basking sharks like to spend their time in more temperate waters.
09:51But they can migrate long distances.
09:53They live across the globe.
09:55But in warm tropical or subtropical areas,
09:58they won't go near the surface because they're not fans of high temperatures.
10:02The lion's mane jellyfish is not that rare, but it's fascinating how large it is.
10:08It's the biggest among jellyfish species and the longest animal.
10:12Its total length can reach 120 feet.
10:15That's approximately 23 feet more than the longest blue whale scientists know about.
10:19The jellyfish has around 70 to 150 tentacles,
10:23and they all contain huge amounts of neurotoxins that can seriously harm you if you come in contact with the animal.
10:30But people don't usually come across this type of jellyfish because it rarely lives near the coast,
10:36preferring the open ocean.
10:37Generally, you can find the lion's mane jellyfish no deeper than 65 feet below the surface,
10:43where it dines on small fishes, zooplankton, and some other types of jellyfish.
10:48It uses its tentacles to catch its value meal.
10:51Hey, you want fries with that?
10:53The giant phantom jelly comes out of the darkness and depths of the ocean's midnight zone.
10:58Its sun-hat-shaped bell reaches over 3 feet across.
11:02This bell trails 4 ribbon-like mouth arms that can be up to 33 feet long.
11:08This quite rare creature uses its mouth arms to catch unfortunate animals swimming around
11:14and not knowing what's coming for them.
11:16Giant phantom jelly propels itself through the water with periodic pulses coming from its orange head.
11:23It glows faintly and mysteriously in the pitch-black depths.
11:27It lives across the globe in all the oceans except for the Arctic.
11:31I'm guessing it's too cold.
11:34Because of its odd shape, people often call the oarfish the dragonfish or sea serpent.
11:39It's about 26 feet long, which makes it the longest bony fish we know about,
11:44and lives at depths of 3,300 feet.
11:48Oarfish spend most of their time in the deep, dark parts of the open ocean,
11:52in tropical and subtropical areas.
11:55They almost never come to the surface.
11:57Unless, you know, invited.
11:58It's a ribbon-shaped and shiny silver creature with a long red dorsal fin and red oar-like pelvic fins.
12:06Its body has no scales and is very thin.
12:09The fish can grow to a length of about 30 feet and weigh 660 pounds.
12:15Oarfish have really big eyes that help them see better in their dark, scary surroundings.
12:19The frilled shark is definitely one of the gnarliest-looking marine animals out there.
12:25If you saw it somewhere, you'd probably think you went back to the age of dinosaurs.
12:31Yup, the frilled shark is a prehistoric creature because its roots go back 80 million years.
12:36This living fossil can grow to be 7 feet long.
12:40It got its name from its frilly gills.
12:43Even though frilled sharks have the shark part in their name,
12:46they swim similar to an eel in a distinctly serpentine way.
12:51Its mouth is terrifying.
12:53Similar to the maw of the great white shark,
12:55it has 300 trident-shaped teeth lined in 25 rows.
13:00Hey, come a little closer, huh?
13:02Researchers discovered this creature in the 19th century.
13:06But people rarely see it.
13:08And no wonder.
13:09It usually lives at depths of between 390 and 4200 feet.
13:14Most of the time, the frilled shark feeds on squid, swallowing them whole.
13:19Its long jaws allowed the frilled shark to gape extra wide
13:22and swallow animals half as long as its entire body.
13:27Goblin sharks are very rare.
13:29Researchers have spotted fewer than 50 of them in more than 120 years.
13:33But maybe that's for the best, since we're talking about a pretty scary fella
13:39with a narrow snout and sharp teeth.
13:41It's also capable of thrusting its entire jaw outward when it wants to catch something.
13:47Hmm, sounds familiar.
13:48As it's lurking through the dark depths of the ocean,
13:51a goblin shark sees a small squid that looks quite yummy.
13:55The dangerous animal inches toward the squid.
13:58When the poor creature notices the predator, it tries to dart away.
14:02But it's too late.
14:04The shark has already thrust its jaw the whole three inches out of its mouth.
14:08This jaw is connected to the flaps of skin the shark can unfold.
14:12This helps a lot because the goblin shark is a sluggish animal.
14:16So it's pretty hard for it to chase its food.
14:19After finishing its lunch, the goblin shark puts its jaw back in its mouth
14:23and swims away as if nothing's happened.
14:26Goblin sharks mostly live at the bottom of the ocean.
14:30Like many other shark species, they prefer swimming alone.
14:34Here's a silver-colored creature with very rough skin.
14:37That's the ocean sunfish, with a total length of almost 11 feet.
14:42Its other name is mola.
14:44The ocean sunfish is the heaviest of all bony fish out there.
14:48People sometimes call it a swimming head because of its bizarre appearance.
14:52These creatures have such a weird shape because they're born with a back fin that never actually grows.
14:59It just folds into itself as the animal matures and creates a rounded rudder.
15:04The sunfish is a bit clumsy.
15:06It moves with the help of its mighty fins that allow the animal to swim on its side.
15:12This marine inhabitant is a solitary creature.
15:15It mostly feeds on zooplankton and jellyfish.
15:17The spotted wobegong is one of the world's rarest sharks.
15:22It grows to be more than 10 feet long.
15:24It may not look as terrifying as some of its shark relatives,
15:28but it's pretty good at catching unsuspecting animals swimming past, mostly during the night.
15:33The animal has a spherical, which is why it can breathe while staying still at the bottom of the ocean.
15:39It's motionless most of the time, which is why you can barely notice it.
15:43Its flat body and large pelvic and pectoral fins blend in with the underwater terrain.
15:48That's why they're so good at hiding.
15:51This ability helps when these sharks want to protect themselves, too.
15:55Wobegong means carpet shark.
15:57They usually live close to the ocean floor in coral reefs, on sandy bottoms, and under piers.
16:03People have even spotted the shark in the water that is barely deep enough to cover its flattened body.
16:08Now, blobfish lack teeth and bones, so they can't actively hunt.
16:13Since they don't have much muscle mass, they can barely move around.
16:16Hey, I had a roommate like that once.
16:19They get their energy from animals they scoop up from the seafloor.
16:22They also know how to conserve this energy.
16:25That's how it usually goes with deep-sea creatures.
16:28They don't have as much food as those animals that swim closer to the surface.
16:32Instead, they have special body mechanisms that allow them to save energy for the times when they don't have much to eat.
16:39Pressure at the depths where the blobfish lives is 120 times as high as that at the surface.
16:45That's why the bizarre creature looks like a weird gelatinous mass only when you bring it up to the surface.
16:52The pressure here is not strong enough to keep its body together.
16:55Hey, breaking up is hard to do.
16:57The white-margined stargazer could compete with the blobfish for the title of the ugliest animal in the sea, don't you think?
17:05Now, this animal has eyes on the top of its head, together with an upward-facing mouth, which the creature uses to hide itself in the sand.
17:13That's where it spends most of its time, with only its eyes protruding from the sand.
17:18It chills this way until some small animal passes by.
17:22It can lunge at its target incredibly quickly, literally within milliseconds.
17:27This creates a vacuum in the water that pulls in a crab, fish, or some other small, unfortunate animal.
17:33Another tactic involves venom.
17:35This fish has a venomous spine in its shoulder blade that helps with catching other animals and defending itself against enemies.
17:42Even though it's not related to the electric eel, the white-margined stargazer can generate an electric shock as powerful as 50 volts.
17:52Ow!
17:54That's it for today.
17:55So hey, if you pacified your curiosity, then give the video a like and share it with your friends.
18:00Or if you want more, just click on these videos and stay on the bright side!
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