Unearthing Subnautica's Terrifying Extinct Leviathans

Today we will be digging up all we know Subnautica’s fossils. From the big to the small, its safe to safe 4546B has had its fair share of terrifying creatures that we are lucky aren’t around anymore to eat our Seamoths. Lets find out all about them!

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▼ Time Stamps ▼
0:00 –Introduction
0:09 – Research Specimen Theta
2:50 – The Ancient Skeleton
5:31 – The Gargantuan Fossil
8:59 – Conclusion

Thanks for watching Unearthing Subnautica's Terrifying Extinct Creatures!

[iAletho]

Giant Ancient Skeleton Crab is nightmare fuel I didn't need today...

[asleepybi]

Realistically speaking, most leviathans wouldn’t be interested in hunting us, and certainly not the gargantuan leviathan. It would be too much energy for something so small in return. If anything, I’d wager the reason why the larger leviathans (the reaper is the exception I can make since it’s one of the smaller leviathans) are so aggressive towards us is because they’re territorial and sensitive to any sort of change in their environment.

[somerandomdude]

To give the Gargantuans size some more perspective...

The diameter of a human eye is about 24mm. A grain of sand is about .06 to 2mm.

So to get an idea of what you would like to the Garganatuan, hold a single grain of sand up. That's YOUR eye.

[sprite]

I'm pretty sure that the Gargantuan Leviathan near the ghost leviathan is a juvenile, so it couldn't have died from old age and there were probably way bigger leviathans

[Mae_Dastardly]

It's possible that the crater wasn't even a thing when the garg died, it's body could have settled on the void floor only to be pushed up millions of years later by the volcano. With the cavity its decomposing body left buried under who knows how many layers of sediment forming a cavity that currents would eventually erode into the lost river cave.

[Timmothy_plays]

I'm glad that you didn't mention The Ancient Skeleton's whole ingame model which has made many people think that what's in the game is it's entire skeleton, meanwhile obviously it's meant to make it look as if it's entire body is buried under the ground, so clearly the devs wouldn't actually design the entire skeleton if literally only it's skull area is ever going to be visible.

[sylvananas]

Fun fact about the gargantuan leviathan, the cratter in wich the game takes place is roughly 3.8km in diameter, so imagine how long it would be given its size

[billbillinger]

I always figured the juvenile leviathan was the offspring of the big one. Perhaps both were trapped in some massive geological event millions of years ago, or both perished and were covered over time as the biome was formed.

[StellarCrackhead]

You're by far one of my favorite Subnautica channels, love your content and what you do for the fandom!! Yesterday i binge watched every single vehicle info video because i was sick and i am now ingrained with the Knowledge

[Glub_Glubberson]

what about the frozen leviathan? I know it's technically still alive but it's in a comatose state, would've been cool to hear about.

[piramld]

"good luck fitting this in your museum"
the british: challenge accepted

[GhostoftheSnow]

I think the ancient skeleton is an eel type animal based on the physical traits of the skeleton. The holes on the side of the ancient skeleton are prolly either gill openings or as slime glands to protect it from predators biting it. If the latter is the case I’m scared at what this thing needs to defend itself from

[ZenithTech]

God, the mystery, intrigue and sheer terror the developers have managed to produce with this game is absolutely astounding! I love Subnautica so much! It's definitely up there with my top 3 or 5 games ever! Great video, my friend! Can't wait to see more :D

[deltapig]

With 100 hours on this game can’t believe there was so much I didn’t know. Thanks for the great vid!

[Laban]

I hope next entries in the series will have us explore the Void. The 2 games we had so far had us explore the equivalent of what safe shallows are to the rest of the map, just the tip of the iceberg and the safest parts of the world, imagine what could lie down in the abyss, kilometers below the surface. The gargantuan leviathans might not even be extinct for all we know, or what other terrifying eldritch monstrosities live down there, feeding on ghost leviathans. I hope the devs pull no stops if they ever have us venture down there, and make it a full blown horror game.

[prestiboi]

I think my guy studied hours of anatomy both of real creatures and 4546B's creatures just to make it, respect my guy loved the video as always!

[lexerwilliams]

I haven’t watched subnotica for years yet YouTube recommended this video and really intrigued me and I couldn’t stop watching it after that. I didn’t even know that some of these creates even existed!! This is honestly amazing. Now I’m kinda wanting to know more

[marieantoinette]

Is it possible, that the first creature's second set of eye holes are actually ear holes? Some reptiles and birds have these, although I'm unsure whether they show up in skeletal structures.

[T.BG]

Couple things:
- Fenestrae are what you call holes in bones/anatomy, usually to lighten loads. Temporal or postorbital fenestra might be what we're seeing in Theta, rather than a second set of eyes. Pretty much every orbital cavity in the game has a ring, while the openings you indicate don't.
- The holes in the Ancient Skeleton are possibly to allow a mollusk's tentacles to grow outward from the armored core. I'd be proposing something akin to the concept art, with inspiration from the ancestors of the cuttlefish specifically and gastropods more generally, which would explain the lack of joints.
- As for the Gargantuan Leviathan, it's entirely plausible that there was no collapse trapping the creature. It's a fairly common thing for sea life to enter caves (or into other sea life) and then grow large enough that it can't escape. Given that the thing had no notable wounds that we're aware of, it may be that the thing simply grew too much and starved to death.

[cobaltprime]

If I’m not mistaken, the denser an atmosphere the bigger the animal is. It’s why dinosaurs were so big but we don’t have anything their size on land.
Likewise, there’s deep sea gigantism. When the pressure of the water merits bigger and stronger sea life.

Something may have happened on the planet that reduced the pressure of the atmosphere as well as the sea. This caused the extinction of these large specimens with their ancestors being smaller versions of them. They may not survive in the ocean now.

I’m guessing that the Ancient Fossil has those massive holes for 6 large fins. They had no bones (or at least none that survived the millennia) but were comprised entirely of muscle to maneuver throughout the ocean.