4:40 I apologize for the mistake here. As the creature is roughly three million years old and the Kharaa bacterium has only been on the planet for about a thousand years, the Gargantuan leviathan found in the Lost River likely died due to other reasons.

They should make a Subnautica game where one can travel into and explore the dead zone, and maybe find new nightmarish creatures and biomes and who knows, maybe the Gargantuan Leviathan might be one of them.

I hope they add some glowing eyes at the dead zones,to make it feel like there is bigger leviathan outside the map

Even though this guy is a kid I can appreciate his editing skills, quality and most importantly maturity when speaking of the reproductive cycle

Imagine your swimming in the dead zone and you see a ghost leviathan swimming towards you, then out of the darkness a mouth closes over the ghost leviathan

I’m even more scared of what it considers a predator...

i never knew how big this thing is like W O W nice details too

Imagine a leviathan that eat other's leviathan's

I think that the creature adventured into the lost river and found out that it liked feeding there so it stayed a while l.... But eventually it found out it had grown to big to leave and the food started to deplete... and slowly but surely it starved...

Devs: let's add a big skull. Us: How does it give birth? Edit: EGGS

Imagine swimming in the Dead Zone in your cyclops (lets say you wanted to see what is in the dead zone) and you escaped all the ghost leviathans then you see one coming straight at you but suddenly it dissapears then you just see one big eye and you hear the ghost leviathan screaming in pain and then the eye dissapears like it was swimming deeper and again its quiet...You were confused what did just happen so you go deeper to the void to explore and you see no ghosts and then you hear the most haunting roar of a creature it was so scary that you started thinking it was a ghost leviathan but no... It was something bigger and you know it you just think that it was a ghost leviathan to calm yourself down and you decide to turn on your cyclops front lights because you think you see a wall or something in the distance but when you turn the front lights on you see something like a mouth and it starts slowly opening it is so big that you are paralyzed with fear and you cant turn your cyclops back so your cyclops just swims into the mouth of the creature and you hear you cyclops slowly getting crushed by the teeth of the creature as it chomps your cyclops then your adventure ends

imperator looks to be a relative of the reaper, sea dragon, ghost and sea emperor leviathan. Even just thinking about that terrifies me even more than the ice worm and shadow leviathan.

Seriously kid, it's been a while, since I've watched a video by someone as young as you, that was this concise, well written and well thought out, keep up the good work, and I know you'll go somewhere enjoy life.

I feel speedymouse puts a large amount of work into his videos and that work will carry him to many subscribers and plenty of content to them as well.

I feel like the Gargantuan Leviathan ended up eating some of its companions or children. There’s another skull and set of ribs similar and very smaller than the main one in the Lost River. Saying it likely did get stuck in the most river and died there, it either had kids or companions which it ate in an attempt to survive. So I believe it’s likely for this creature to have cannibalistic features. It’s also possible it could eat the bones of the other creatures, since from almost all skeletons, several bones are missing, especially with the “Biter” Leviathan as some people call it, and the other smaller Gargantuan Leviathan is completely missing the rest of its ribs. None of the skulls(not including the sea dragon since this happened MUCH later) have any parts of their body in tact which would have bone marrow inside of them. It’s just the skulls left. Also with this info, how it’d eat the bones and leave the skull behind, I have reason to believe that this creature: A) Has an extreme gender difference where males are much smaller than the females(like angler fish) Or B) When reproducing, only gives birth or lays one egg, telling that they don’t need to reproduce much due to their great numbers of incredibly long lifespan. This is DEFINITELY a Dead Zone creature that got too cocky and went into the crater for an easier kill, and when it found a good place to sit it stayed there. This would be a dead zone creature l that lives on the sea floor, like a bottom feeder or one that eats Ghost Leviathans. There’s no bottom of the void, but given there is one, it’d be a place that the Gargantuan Leviathans live. If it does live in the dead zone, it’d eat corpses of Ghost Leviathans that fell to the floor, or kill and eat them itself. It eating microscopic creatures would be very unlikely especially with its sharp teeth. If it’s not a dead zone creature, it’s a freak accident where a leviathan grew too large for its natural environment, but given the lack of other remains of Gargantuan Leviathans, it likely didn’t live in the lost River. Anyways thanks for reading all the way through if you did!

This creature would be perfect being Cthulhu's pet, if it wouldn't make Cthulhu ITS pet

100% Likes speaks for itself

This is a seriously underrated KZfaqr. I’ve only watched a few videos and I’m subscribed, simply because he is mature and doesn’t go off topic. He gets straight to the point, and provides us with interesting theories. Good job man.

I really like your voice, I can tell this channel has a good future ahead of itself! Great video!

I saw a comment that was actually a pretty cool idea for Subnautica; it was a new DLC, where it’s a prehistoric DLC where we got to see all of the other dinosaurs or creatures that was before us, which is actually a pretty cool idea, and I actually hope that happens someday. but I doubt that the creators will make it..

If I saw that thing in the game right infront of me There would probably need some dry pants

Can someone explain to me why u don’t have a million subs?!

Doing some math, I found out that the whole body should be 14763 feet long. That’s almost 3 miles, which is 33 Empire State buildings. Yes you read this correctly. 33 Empire State buildings. And the tallest building, which is around 2000 feet, is dwarfed by the leviathan, about 7 of those skyscrapers would equal the length of that thing

yo bro, this is like actually good quality content. keep it up seriously my man

Imagine the Atlas could dock a cyclops

probably the most interesting theory video yet! keep up the great work

Damn this vid was very well made, enjoyed your theorizing. Hope you go far!

You're honestly really good at this! Good job.

That’s way more explained than I thought, like Jesus good work man, you are so underrated

I love how u can just see the videos get even better every video! Great video! Like i said

This dude needs more credit his videos are so good!

Just discovered your channel, great video! You're very well spoken and add a lot of great details, and the background footage just ties it all together! Edit: Great theories too, this channel has a very bright future

Nice, I'd very much love to see more like this. Just a wee bit suggestion for you though, try to match background sounds with the overall theme of the video. All the best 🙂

Reproduction is the least expected thing to exist in this video xD ~KRlS from discord

You just earned yourself a subscriber. Merry Christmas and a Happy New Year.

this was only two years ago and you sound 20 years younger, crazy.

This is about as fascinating as a midnight history channel. Well done!

Also I love these Subnautica theory videos keep it up.

Nice Vid! I think you'll make it big

Great video man!!! I've only recently seen info about this laviathon and have been hugely interested ever since. Seriously love subnautica and its story though. I wish I could play it again for the first time. Blew my mind and shit my pants at the same time. Frikken fantastic!!!!!

The mod is crazy and its only a baby

nice man kinda helps me trying to figure out about the life of the gargantuan/titan leviathan

An idea me and one of my friends discussed once was that a game all about an ancient architect city in a certain very deep but still thriving part of the void that was over run and destoryed by leviathan and you explore the city and the strange areas surrounding it that still have life and plants but ones that the likes of have never been seen yet because they survive in other ways instead of just using sunlight. Kinda like all the plants you can find in the Lost River, down there they don't have sunlight yet there's still grass-like moss, those were glowing plants that scatter the walls and even an entire you know? GIANT FREAKING TREE!!! So all the way in the void it is certainly plauseable that we could have a few biomes and things but having a precursor/architect city thats all broken down would be really cool to see

this is really good man! keep it up.

believe it or not i found baby gargantuan leviathan skull slightly buried under plants not to far from the big one in the lost river so the big one was not a baby just wanted to throw that out there :D

Damn, this guy’s good at being a youtuber

a kid at ur age deserves the love and support

your'e voice is calming idk why it just makes e want to listen :P

We know one thing - this leviathan must've been slim enough to fit into the Lost River /!\ SPOILERS BELOW /!\ Gargantuan Leviathan could live in the void swimming around the crater eating creatures that got lost and swam into the void. One Gargantuan Leviathan said "i'm different from other girls" and swam to the bulb zone's lost river entrance. Soon after exploring Lost River he got stuck cause he was so *fat* and after all the creatures biting him he eventually died. The Ghost Leviathans could grow and lay down eggs 'cause they've had alot of food and a safe habitat. There were so many that they couldn't live only in Lost River, they split up and swam to Grand Reef, Kelp Zone and The Void. As time went by, the ones living in Kelp Zone and Grand Reef couldn't feed themselves, so they started fighting for food, only the strongest ones remained. The Void ones hovewer killed the Gargantuan Leviathan (because there were so many Ghost bois), they are now living somewhere in the depths of The Void, eating that leviathan. They are protecting their territory now.

Maybe they ate the skin of the ghost leviathan o_0

Never played Subnautica but god dam this was interesting. + you sound kind of young and know so much stuff and know what ur talking about... Quality content.

I loved the vid it was excellent keep up the good work

I love the way that this guy talks, he is SO intelligent and I love the way that he articulates every word.

subnautica: before the kharaa

Nice vid your voice is so soothing

Great vid! Keep up the good work

Hello friends. I hope you will have a good weekend.

Subnautica : The ancient world

I’m glad i got recommended this!

Those Leviathan bones are an adult because a little bit away you can find a smaller juvenile skull that looks exactly the same just smaller

These videos are so good!

“There’s always a bigger fish” -Qui Gon Jinn

I love subnautica and ur vids. Ur vids make good sence to me

A good bit of detail for someone who sounds so young. Good job.

For a kid this video is actually really good with the science words and there accurate good job man

This is actually good and I'm surprised by how he sounds young but also not the Johnny Johnny yes papa content creator and how his videos have more quality than yt rewinds

Can't believe this thing was actually added in a mod.

This is a cool channel I hope you reach 1k subs!

Just a man out here getting his grind major respect lil homie

You are my favourite KZfaqr and you give facts

Spedy has some awesome videos, and im still trying to figure out if hes a genius 13 year old or if hes been through college and just has a young voice. Either way keep up the good work man

If the devs release a demo for there next installment in subnautica,they should have this one area where it’s completely devoid of light and when players enter it,then the PTA starts saying some babble but the only two words you can understand are “Titan Leviatha-“ then you have this weird sonar thing that is shown on the screen and it picks up the leviathan.

honestly, insane quality/content.

they could launch a third game of subnautics something like "Subnautica: First of all." that would tell the story of the planet even before the architects arrived there, a period when the gargantuan and other major leviathans were still alive .. it would be really sick.

One kind interesting thing about the Leviathan is that the Leviathan kills via crushing or ripping like a crocodile as it's teeth don't seem like it is very good for ripping and tearing like a shark but rather to bite on and never let go, possibly doing a death roll due to its rather slender-ish body allowing effective death roll,helping it to rip out large chunks or flesh to eat and eventually kill it's prey

Great video dude. It would be definitely cool to see the gargantuan leviathan in the dead zone, and have a giant submarine that you can live on and junk, but they'd have to add something either in the dead zone or in the stomach of the leviathan to make players need to go out and find it. I think it would be especially neat if they added multiplayer, so you could have a little crew with you searching for the beast, with one person as a pilot and another person managing cameras and weaponry, and another one keeping the ship intact. But it's probably not gonna happen now.

Not bad for 500 subscribers

Great Video!

And here I am, too scared to go to any biome where there is a single, small, reaper leviathan spawn. I feel like exploring the Lost River will make me cry

Appreciate the bio lesson my guy

the fact that this is maybe a 8 year old is wild keep up the good work

well Aci finally got to answer our question!

This is a really good video

Now there's a group of Modders that are working on implementing the Gargantuan Leviathan Into the game. I suggest you look Into it if you haven't already.

Great video!

How did you not get over 50.000 subs?

The gargantuan leviathan skeleton in the ghost forest is the adult. A juvenile gargantuan skeleton can be found away from the ghost leviathan territory at the lost river.

The fact that there was once a leviathan that was nearly A MILE LONG scares me... also there are theories that the skeleton of this creature ISN’T EVEN FULLY GROWN!

u are soo fucking underrateeeed keep up the good work

Remember me when you hit 100k lol I’ve been here since 10k

Well done!

There actually is a juvenile, that one is an adult, and it died as it was trapped but also laid eggs, as there is as juvenile right there

we can see a juvenile in the area where the dragon leviathan skeleton is where you can either go towards the exit or go towards the first cube, if you go up towards the green waterfall you will enter an area that's really easy to miss, there is a huge cut down tree there that's being guarded by a ghost leviathan.

So much great info

You should make a video about the lost river including. All the entrances to it. How to find it and what you should do. And what yo should do about it

The only thing I want to point out is that I’m pretty sure the Sea Emperor was a special case, they don’t naturally die after their offspring hatch, the one in the game was simply waiting to ensure that her children hatched, before ALLOWING herself to die…she’d lived much longer than the species would normally

this thing eats ghost leviathans for snacks

Got Subnautica yesterday, this game is so good, especially the lore.

Heres a quick thing I noticed. On of the huge skulls you keep showing looks a lot like the front of a reaper leviathan. What if there was an ancient giant reaper leviathan (s) at one point? Like they or it was meant to keep up with creatures such as the sea dragon leviathan or the gargantuan leviathan? Just a thing I came up and noticed. Also, some of the holes on the neck could have been bottom grabbers. Again, just an idea. Also, I haven't finished Subnautica yet, so sorry if it's known what it is.

I love your vids so much there so cool