Why did the Earth Before the Dinosaurs Look So Terrible?

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Why did the Earth Before the Dinosaurs Look So Terrible?

Did you know that you are most likely an alien on this planet.
Some scientists believe that the seeds of life may have been planted here by an asteroid or a comet, carrying the building blocks of life across the vast expanse of space. This tantalizing idea raises the possibility that life on Earth might not be entirely ‘Earthly’ at all. Perhaps, in a way, we are all aliens.
But whether life began here or was delivered from the stars, every living thing on our planet shares a remarkable connection. Hidden deep within our cells is the evidence of a single ancestor… an organism that lived billions of years ago and gave rise to all forms of life on Earth.
Could we really be aliens? And what bizarre creatures came after the first life on Earth appeared?
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More oxygen = larger insects.
I'm glad we don't have those today.

stefantsarev
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It's almost as if Earth is an egg that was fertilized.

Fido-vmzi
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13:41 Seriously, who's naming these things?? LMAO!!!😂😂

Tked-
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If life comes from space, then I'm pretty sure we are not alone in the universe...

SjaakSchulteis
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At 0:46 when talking about LUCA you show a multicellular creature, which it wasn't. At 2:40 you show an image of Theia striking the Earth head-on instead of the oblique hit necessary for the Moon to form. At 3:18 you note that the impact caused the Earth to tilt, but, rather than showing a tilted axis, you show the orbit of the Earth as extremely oblong as if seasonality had something to do with the distance from the Sun. At 3:29 you mention that tides may have influenced the beginning of life without explaining how. At 3:52 you say that carbon monoxide may have helped life start but you don't explain how. From 4:07 to 5:11 you misrepresent the panspermia hypothesis. You claim it says that life began from either chemical precursors or microorganisms delivered from space. This is false. It specifically refers to alien life (microorganisms), not chemical precursors. At 4:42 you refer to evidence of amino acids (chemical precursors) found in an asteroid to support the hypothesis. Amino acids are not life. You then conclude "Although it sounds like science fiction, it is a possibility". Anything is possible, but there isn't any evidence to support the speculation. You did it for dramatic purposes. I stopped watching at this point because I realized this was a sloppy and unscholarly effort designed more to attract viewers than to seriously explore science.

frujf
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Only thing we know for sure is that we know nothing.

szymonskurski
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even tho there are harsh conditions, these early periods were crucial in setting the stage for the development of life as we know

AncientWildTV
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6:12 that whale definitely came from outer space 😂

Delta
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It's amazing that the earth naturally mashing together a bunch of minerals at random over a long enough period of time caused a "game of life" to allow me to sit here and comment on it.

Redflowers
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" Why did the earth look so terrible " These thumbnails are

JohnShields-xxyk
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If life is from the space, then where is the life in space from?

fredlar
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One hypothesis is that the Earth was (and still is) a sort of experimental testing ground for advanced races like the Annunaki who engineered life forms as a pastime. The dinosaurs were a failed experiment. We’re next.

daveylee
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what a nice extended evolution documentary about life on Earth, thank you very much

FransHesseling
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What makes the theory of life from space a bit silly is the question as to how life would have formed in space while it allegedly could not form on a much more suitable planet earth. As to the theory of the "building blocks" coming from space, again: Why would they exist only up there, when everything that exists in this region of the galaxy also exists on earth?
Also, Carbon and Nitrogen are very basic Elements, we have much rarer and heavier Elements such as Uranium and Gold that are also commonly found across planets and asteroids in our immediate neighbourhood.

maxuskrachus
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Do the Math, us being alone is simply impossible.
2 trillion galaxies in the observable universe so far.
Each contain an average of 500 too 800 billion stars.
Most of those stars have moons and planets.
So, we are not alone, it is simply ridiculous to think that.

ChinaJoeSux
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Are we talking about the Hallucigenia from Attack on Titan again??? 👀

danieleguidi
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Panspermia doesn't mean "we are all aliens", just that the building blocks of life could have originated outside the earth.

rogerjohnson
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He said the line. Powerhouse of the cell.

stevomac
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I'm confused. How is it that man knows another planet crash into planet Earth 🤔

raselllholt
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Quite a few assumptions as to where life came from. We know of life's existence but not how of how it came to exist. Just admit it. We just don't know.

ricf