Largest Animals To Ever Exist On Earth. Size Comparison | The Most Amazing Prehistoric Secrets DOCU

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🌍 Dinosaurs, those magnificent creatures that once roamed the Earth, continue to captivate our imagination and scientific curiosity. The era of dinosaurs began approximately 230 million years ago in the Mesozoic Era, marking a period of dominance by these fascinating reptiles. Before dinosaurs, appearance of the dinosaurs and after the dinosaurs. This age, often referred to as the "Age of Dinosaurs," witnessed the emergence of some of the most iconic species, from the towering Brachiosaurus to the fierce Tyrannosaurus rex. Their existence demonstrates the incredible diversity and adaptability of life on Earth, with species that thrived in a variety of habitats, from lush forests to arid deserts.
The extinction of dinosaurs, about 66 million years ago, remains one of the most intriguing topics in paleontology. This catastrophic event, believed to be caused by a combination of volcanic eruptions, climate changes, and the impact of a massive asteroid, led to the end of the Cretaceous Period and paved the way for the rise of mammals. The sudden disappearance of dinosaurs left a void that has puzzled scientists for centuries, sparking numerous theories and extensive research to uncover the details of this mass extinction.
Beyond their appearance and extinction, dinosaurs are a source of endless fascination due to the strange and sometimes bewildering facts that research has unearthed. For instance, some dinosaurs, like the Stegosaurus, had brains the size of a walnut, significantly small in comparison to their massive bodies. Others, such as the Parasaurolophus, had elaborate crests on their heads that could have been used for communication or to attract mates. The discovery of dinosaur fossils with preserved feathers has revolutionized our understanding of these creatures, suggesting a closer evolutionary link to birds than previously thought.
The pre-dinosaur world, often overshadowed by the towering presence of the Jurassic era's giants, presents an equally fascinating chapter in Earth's geological history. This epoch, spanning from the formation of the Earth around 4.5 billion years ago to roughly 250 million years before the appearance of the first dinosaurs, encompasses several pivotal periods that laid the groundwork for life as we know it.
During the Hadean and Archean eons, the Earth was a molten hellscape, gradually cooling to form the first solid crust. This era saw the emergence of the first life forms, simple prokaryotic cells, which appeared approximately 3.5 billion years ago. These organisms were primarily anaerobic bacteria thriving in an oxygen-free atmosphere, setting the stage for the evolutionary leaps to follow.
The Proterozoic eon witnessed significant geological and biological transformations. This period marked the accumulation of oxygen in the atmosphere, a direct result of photosynthesis by cyanobacteria. The "Great Oxygenation Event," which occurred around 2.4 billion years ago, radically altered the planet's atmosphere, paving the way for more complex life forms. The Proterozoic also saw the first supercontinent, Rodinia, form and break apart, a cycle that influenced global climate and environmental conditions conducive to evolution.
By the late Proterozoic, around 600 million years ago, the first multicellular organisms began to appear, with the Ediacaran biota representing some of the earliest complex life. These creatures were predominantly soft-bodied, living in the deep sea environments of Earth's pre-Cambrian oceans. They lacked the hard, mineralized skeletons that would become commonplace in later eras but represented a critical step in the evolution of life.
Transitioning into the Phanerozoic eon, the Paleozoic era, specifically the Cambrian period, known for the "Cambrian Explosion," saw a dramatic diversification in life forms. This period, beginning around 541 million years ago, marked the emergence of most of the major groups of animals and the first occurrence of a predator-prey dynamic. The Cambrian Explosion set the biological stage for the development of ecosystems that could support the eventual rise of dinosaurs in the subsequent Mesozoic era.
The pre-dinosaur world is a testament to the dynamic and ever-changing nature of Earth, showcasing a history rich with climatic shifts, tectonic movements, and evolutionary innovations.
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[@timothywootton5331]

This comment section is like a microcosm of the world we live in. A bunch of whiney children who when presented with a wealth of information can only respond with complaints about something that makes no difference.

[@MrButchersTube]

And then you complained about them.

[@Bob-te3le]

Facts. Some people will never be happy.

[@deavyhick6803]

​@@MrButchersTubehow is it complaining?

[@sarahm.4926]

Can someone explain why it matters if the voice is A.I. or not? WTF... some of you people focus on extremely weird things. 😒 Great channel and fantastic narration by the way. 🌱☄️💙

[@Will_14_years_ago]

Love the voice

[@FM-fp1pt]

Written and narrated by AI

[@bi11y5pazm]

Great video/content! Ignore the haters. Keep it up! 🤘

[@SEGplus]

What i appreciate the most out this knowledge is that Blue Whales have been around 1.5 million years great knowledge my friend.. And they thankfully still with US 🌏

[@KristosMenfes]

I mean chronological u termed it backwards its -299 million to -199 million or whatever

[@andrewliberman7694]

Thanks!

[@wondody]

Thanks 🙏

[@jjjerbear777]

the fake narration ruins the content .. sorry it's true

[@fumomofumosarum5893]

Ai really made youtube an even weirder place than it already was XD

[@neridega]

incredibile discovery!

[@liiqaonmarz6451]

Can someone tell me which animal was the biggest so I don’t have to listen to that annoying ai

[@lnis5073]

Lmao

[@leodbrownjr]

The largest living organisms, and oldest, which also live today, are the mycelial networks under the worlds forests. Nothing compares in either size or age. And yes the entire network is one organism.

[@Tr1gg3rCodm]

U thought it was bad having a June bug fly smack dab into your face on bike or motorcycle imagine going 60 mph while giant dragon fly going 40mph in opposite direction directly into your face😭😭😭😭😭😭

[@lovekills9112]

Who does the math on these? Where in the world does 400 kilos equal 250 frigging pounds lol? I think they mean 400 kilos or roughly 880 pounds which makes more sense as I highly doubt an 80-100 ton animal could survive on 250 pounds of vegetation. Even the 400 kilos seems light but it's Def better than 250 frigging pounds.

[@williamredmond8128]

Tie-tan-uh-bow-uh.

[@karbyyyyyy]

“Small beast of about 10cm” Same🗿

[@SophiaClark-xv1cf]

Why is there some kind of bar at the bottom of the screen? What does that represent? Why is it there?

[@mnoun8871]

In the dragonfly it is the graphic representation of digital creator making the dragonfly Otherwise you will have to explain where you saw the bar, for better interpretation It is not a scale device showing size, but the graphic representation of creation by design from the 3D graphic artist you missed entirety

[@Thedoug369]

I love the content but the voice-over is just unbearable. Change the super annoying commentary to... anything else and you'll have at least one more sub. What were you thinking?

[@Bob-te3le]

Then make it yourself instead of crying sbout something that don't matter.

[@neridega]

can u imagine today world without impact with dinosaurus x) and should be on other worlds something like dinosaurus bcs they mb didnt get impact like our earth :)

[@mnoun8871]

The first Ocean dwelling creatures teeth, and the comparison to centimeters, and inches is a bit off Saying 6 centimeters or 12" is inaccurate, in no way does 6cm = 12" any way you look at it In diameter or length it is still just over 2" but still an impressive size for a tooth Now if it were 12" that would be more impressive So which is it 6 cm or 12"

[@TheThor1ief]

It's ... Oops sorry no spoilers

[@mshara1]

LIFE IS LIKE A BOX OF IGUANADONS.

[@EAZIEE]

AI VOICE , stop using it for quality content.

[@billkissick6268]

When did Forest Gump start narrating youtube vids?

[@Deplorable2]

When did you get so comedic smart...dumb ssa

[@lovekills9112]

I wonder why this dude is narrating a small KZbin channel. You'd think the money he made from bubbagump shrimp would be enough. He should have lieutenant Dan do it instead.

[@johntyler569]

Please whoever makes these videos just change the voice already literally everyone comments about it

[@johntyler569]

I like the Subjects of the videos but as soon as I hear this voice I'm like nope

[@mnoun8871]

Did you enter into this agreement to complain for a free informative video, and show us your real character of annoyance to many Just so you could be heard, as I laugh a while and say I really don't care for complainers Your part of the group of humanity that has done nothing good and is all out of ideas Instead of complaining contribute, as I just did 😂

[@mnoun8871]

And you left two fu in here, thanks for contributing to the human race the opposite of evolution

[@Bob-te3le]

Literally a bunch of KAREN babies crying about nothing. Why dont you all make a better video then !

[@Bob-te3le]

​@@johntyler569But you had to make a comment right. Could've just left the video.

[@josephstoliker986]

Please change that voice god damn!

[@TheThor1ief]

Most of those ones started when I was a kid so I had to use a voice from frequency changer to sound like an adult and make it for projects for class about you know old species of stuff so I didn't have to do. Do you know books and stuff to keep me away from writing😂

[@shaunkolly7113]

Meg would had the blue for breakfast

[@Bob-te3le]

Not the prehistoric killer whale though.

[@anthonygregory6797]

​@@Bob-te3lethere's always a bigger fish

[@shaunkolly7113]

Gig got to 50 feet

[@colinferguson972]

Blue whale

[@andorandor5462]

I have to say man..I find it very annoying the way you talk. Do you really have to?

[@mnoun8871]

Do you really have to complain in writing, you really are not helping anyone

[@andorandor5462]

@@mnoun8871 do you really have to ask dumb q? How esle would I "complain", I was asking the dude, maybe he can t help it, maybe he doesn t even know. If he s got the balls to talk like that on youtube he s got the balls to face it. Either way I wish him all the best and if he can improve he should.

[@TheThor1ief]

Its for therapy reasons

[@Bob-te3le]

Annoying is a comment section full of a bunch of crying Karen's. Yall so smart and great make your own videos. I bet a bunch ch of your voices ate annoying as well. LOL.

[@DaniekV-pg4bc]

Horrible ai voicing ughhh

[@joshuagraham9217]

First