From a supernova to an alien attack, here
are the 9 most fascinating dinosaur extinction theories Number 9 Supernova Radiation
Roughly 66 million years ago, a massive asteroid, 6 to 9 miles in diameter, hit the Gulf of
Mexico. This set off the Cretaceous-Paleogene extinction event, in which at least 75 per
cent of all species on Earth vanished, including all the non-avian dinosaurs. A giant crater
found in the Yucatan Peninsula corresponds to the timeline of the extinction. There’s
also geological evidence in the sediment of terrestrial and marine rocks. The asteroid
set off dust in the atmosphere that blocked out the sun, causing temperatures to plummet.
It most likely triggered other factors such as volcanism or changes of the sea level.
The impact hypothesis is currently the one most favored by the scientific community,
but its’ not the only one. A theory from 1971 suggests that a supernova close to our
planet was responsible for the extinction. The Earth’s upper-atmosphere was subsequently
bombarded with radiation that caused temperatures to plummet. High-energy cosmic rays may have
even reached ground level thus causing mutations and disease.
Number 8 Selenium Poisoning In 1967, Seil Koch proposed that selenium
poisoning may have been the reason behind the dinosaurs’ demise. Volcanic activity
during the Mesozoic era, from 250 to 66 million years ago, caused massive selenium deposits
all-over the world. These deposits lead to the development of poisonous vegetation. Herbivores
became sick and so did the predators that feasted on their selenium-poisoned bones and
fatty tissues. The mammals that survived were most likely intelligent enough to distinguish
between toxic and non-toxic plants. Before we continue with our list, answer this
question. Which of these creatures survived what the dinosaurs couldn’t? Was it
a. Titanoboa b. Crocodile
c. Megalodon d. Rhinoceros
Let us know what you think in the comments section below and stay tuned to find out the
right answer. Number 7 Vitamin D Deficiency
Pathologist Harry T. Marshall proposed in 1928 that the dinosaurs could have died of
rickets. This disease is caused by a deficiency of phosphates, calcium and vitamin D. As clouds
of dust covered the atmosphere, dinosaurs weren’t getting enough sunlight. This led
to the widespread onset of rickets and other similar diseases, which cause a weakening
of the dinosaur’s bones. Moreover, in lack of ultraviolet light, the plants weren’t
producing the nutrients that could have combated the disease. Dinosaurs, particularly the larger
ones, gradually became weaker and, in only a few generations, vanished entirely.
Number 6 Gravity Shift Despite having been debunked by a number of
physicists, the gravity shift theory still remains a somewhat fascinating concept. It
states that, millions of years ago, the Earth’s gravity was weaker. It supposedly explains
how the sauropods evolved and could still move around, despite their tremendous size.
Sauropods, like the Brontosaurus or Argentinosaurus, were the true giants of the dinosaur world.
These pillar-legged, long-necked creatures could way close to 100 tons and some, like
Sauroposeidon, could grow to be 60 feet tall. Then, a sudden shift in the Earth’s gravity
led to the extinction of all the larger dinosaur species. Their bodies couldn’t handle the
changes that came with the stronger gravitational pull and they were basically pinned to the
ground. What caused the alleged shift in gravity is still a matter of debate. Some have connected
it to the expanding Earth theory, which suggests the planet has been expanding or contracting
throughout its history. Number 5 Going Blind
In the early 1980s, ophthalmologist L. R. Croft suggested that the dinosaurs went extinct
because of cataract blindness. He claimed that many of the structures that dinosaurs,
such as Triceratops or Ankylosaurus, had on their heads were meant to protect them from
sunlight. In Croft’s theory, horns and crests were actually shields that sheltered dinosaurs’
eyes from the ruthless Mesozoic sun. However, this adaptation eventually succumbed to rising
temperatures towards the end of the Mesozoic. Dinosaurs started going blind before they
reached sexual maturity which basically put an end to their breeding efforts.
Number 4 Pandemic The late Cretaceous period saw the development
of symbiotic relationships between flying insects and various pathogens. One study revealed
that mosquitoes that had been preserved in amber and dated back roughly 65 million years
were carriers of malaria. Dinosaurs supposedly had weaker immunity to these diseases and
became fatally ill when they were bitten by insects. In the pandemic theory, species that
weren’t involved in the mass dying off were eventually lost in the asteroid impact. This
supposedly explains the disappearance of marine species that likely wouldn’t have been affected
by the same pathogens as those on land. Number 3 Caterpillars Ate Their Food
Entomologist Stanley Flanders wrote a paper in the 1960s proposing that the dinosaurs
were brought to extinction by caterpillars. His theory was that moths and butterflies
evolved in absence of a natural predator. Therefore, their caterpillars would have consumed
vast amounts of vegetation uninterrupted. Herbivorous dinosaurs needed to eat a lot
of plant material to maintain their enormous weight. So, as the caterpillars wrought havoc
on their food sources, the herbivores basically starved to death. The carnivores soon followed
since they didn’t have anything to hunt anymore except each other. It would have taken
only a few years of extreme plant scarcity for the dinosaurs to disappear. Birds evolved
from theropods, meaning they’re in the same family as the T-Rex. Yet, unlike their massive
cousin, they survived the extinction event by learning to prey on the caterpillars.
Number 2 Egg Problems There are a few theories suggesting that dinosaurs
became extinct because of problems with their eggs. One theory claims that more and more
animals developed a taste for freshly produced dinosaur eggs and that breeding females simply
couldn’t keep up with predation. This wouldn’t be abnormal animal behavior since egg-eating
has been practiced for hundreds of millions of years. Another theory claims that a genetic
mutation gradually caused the eggshell layer to become either too thin, thus making the
embryos vulnerable, or too thick, meaning hatchlings couldn’t kick their way out anymore.
Without any fresh blood to replenish their ranks, it wouldn’t have taken a long time
for the dinosaurs to die out entirely. So, which creature survived what the dinosaurs
couldn’t? The right answer is b, the crocodile. These reptiles are believed to have remained
largely the same for about 200 million years. The K-Pg extinction event caused drastic weather
changes that crocodiles most likely survived due to their burrowing and hibernation habits.
Additionally, they’re highly effective hunters, will eat just about anything and can go without
a large meal for a long time. They have excellent immune systems, produce many offspring and
tend to dominate their semi-aquatic habitats. Number 1 Aliens Wiped Them Out
Some ancient alien theorists have proposed an alternative explanation to the K-Pg extinction
event. It’s highly unlikely that humans would have thrived alongside giant hyper-carnivorous
predators, at least not within the current timeframe of several millennia. The theory
is that extraterrestrial beings exterminated the dinosaurs to give humanity a better evolutionary
chance. Some versions claim that the dinosaurs had been genetically engineered by aliens
in the first place, as an experiment. Opinions vary on how the extermination was carried
out. Various propositions include a super-virus, weather-tampering, poisoning the atmosphere
or using a gravitational device to redirect an asteroid towards our planet. The decision
was supposedly made after these beings had been monitoring the Earth for a long time.
They have since intervened to guide humanity’s progress from its humble hunter-gatherer beginnings
to becoming the planet’s most dominant species. Thanks for watching! Would you rather that
science evolved to the point where it could genetically bring back dinosaurs or to the
point where you could go back in time and see them in their natural habitats? Let us
know in the comments below!

9 Most Fascinating Dinosaur Extinction Theories

100 thoughts on “9 Most Fascinating Dinosaur Extinction Theories

  • September 3, 2019 at 6:56 am
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    Would you rather that science evolved to the point where it could genetically bring back dinosaurs OR to the point where you could go back in time and see them in their natural habitats?

    Reply
  • September 3, 2019 at 5:39 pm
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    Most dinosaurs went extinct due to the war between the Reptilians & Procyonians many, many years ago…

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  • September 3, 2019 at 5:40 pm
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    KIM JONG-IL wiped out the dinosaurs

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  • September 3, 2019 at 5:47 pm
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    These are so dumb that they make my eyes sting!

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  • September 3, 2019 at 6:10 pm
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    B crocdile

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  • September 3, 2019 at 6:18 pm
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    Because clearly Jesus Christ killed the dinosaurs and invented the aliens 😑

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  • September 3, 2019 at 6:43 pm
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    Cool

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  • September 3, 2019 at 6:59 pm
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    I always thought so but how can we consider them aliens when they’ve been here the whole time?

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  • September 3, 2019 at 7:07 pm
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    No.

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  • September 3, 2019 at 7:56 pm
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    Total bollox.

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  • September 3, 2019 at 8:07 pm
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    Do not let this distract you from the fact that mr Krabs sold spongebobs soul for 62 cents

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  • September 3, 2019 at 8:18 pm
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    I would've thought alien theory that the dinosaurs were abducted for study or to be saved

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  • September 3, 2019 at 8:43 pm
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    Reminds me of that SNES Game' EVO the Search for Eden…

    Reply
  • September 3, 2019 at 8:59 pm
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    Make a day will kill you about big cats

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  • September 3, 2019 at 9:09 pm
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    This video is stupid af

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  • September 3, 2019 at 9:10 pm
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    Maybe one day a new species will wonder what wiped out us humans, provided the world is still in one piece by then of course 😬

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  • September 3, 2019 at 9:41 pm
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    Maybe it was the kgb who wiped them out.

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  • September 3, 2019 at 9:48 pm
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    Crocodile

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  • September 3, 2019 at 10:09 pm
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    I'd rather go back in time.

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  • September 3, 2019 at 10:32 pm
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    the two last theories were most stupid !!

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  • September 3, 2019 at 11:02 pm
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    Ancient Astronaut Theorists… say yes.

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  • September 3, 2019 at 11:25 pm
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    i believe it. the aliens were fighting over the earth and god stopped it, but there was allot of casualties. allot of victims died along the way. an ancient war that continues to this day.

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  • September 3, 2019 at 11:34 pm
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    Can you do a video of

    When Dogs Attack
    Please!!!!!

    Reply
  • September 3, 2019 at 11:56 pm
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    I heard in a Islamic lecture that before man was created and put on earth, there were some things living on earth beforehand. This could be a about the dinosaurs but it's not confirmed specifically about them, but the evidence just shows it

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  • September 4, 2019 at 12:11 am
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    Crocodile

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  • September 4, 2019 at 12:13 am
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    The flood wipe them out, they weren't called Dinosaours it was made up in 1841 by Richard Owen

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  • September 4, 2019 at 12:31 am
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    If I was an alien I don't think I would have chosen humans. We are too violent to each other

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  • September 4, 2019 at 12:40 am
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    Why would aliens help HUMANITY though unless humans ARE the aliens!? 🤯🤯

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  • September 4, 2019 at 1:12 am
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    The most fascinating thing to me is just how much my feet smell like popcorn when I take my shoes off.

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  • September 4, 2019 at 1:57 am
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    You left out the one about dinosaur farts causing global warming.

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  • September 4, 2019 at 2:17 am
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    2:27 the answer is obversely b because the other species didn't exist yet

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  • September 4, 2019 at 3:02 am
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    theTRUE Demise of the Dinosaurus`

    Everything Including EARTH Herself
    that Grows From EARTH & that God
    Placed uPon EARTH became Life/(Alive)
    as Dinosaurs were Mere Tools to
    thin Out the Abundant Vegitation of New EARTH
    they Became Living Tools 🌎
    as w| any Tool wen their task is Finished
    You toss em back into the Tool Box

    w| the Dino`s Job Complete
    GOD Gathered em uP & tossed em
    Back into the Perverbial Tool Box
    -No matter the Exact means of Implimenting
    their Earthen Demise -their Absence on EARTH
    was Abruptly Initiated by GODs Hand
    -as was their Deliverance on EARTH

    they acted as Garden Trimming Tools 🦖🦕
    -as the Garden became Trimmed down & Habitable
    🦎🐢🐊 they were then Removed
    -to Present the world of MAN

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  • September 4, 2019 at 3:13 am
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    🧰 – ⛏⚒ – 🦕🦖 – 🌎 – 🧰

    Dinosaur / [EARTH⚒tools]

    -wen Finished w| Tools
    Place em back into the Tool|Box 🧰

    Reply
  • September 4, 2019 at 3:35 am
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    Rhinoceros, D.

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  • September 4, 2019 at 5:36 am
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    If T-Rex survived the extinction, we’ll all be doomed

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  • September 4, 2019 at 7:07 am
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    Humans probably came to earth as some other type of extra terrestrial and just joined with a suitable species of humanoid ancestor that was smart enough to realize where these being from beyond came from. They might have mixed with a more conscious and compassionate species that would be able to evolve faster physically and mentally, hence why we believe in a God so much no matter what religion because the beings that came to earth to create humans were probably aliens and legends passed down on our origins obviously got really mixed up and even covered up.

    Reply
  • September 4, 2019 at 8:46 am
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    when I saw the title of the video, and who created it. My mind said there was only one theory that made sense the first one, the asteroid in the gulf of Mexico. I was amazed by the theories until the last one that made the least sense. Aliens interfering with a barbaric race of reptilian beasts, for Neanderthals to create the world today. The universe is vast and beyond human understanding, much like the lack of maps for the depths of our oceans. Nobody knows the truth, but extraterrestrials interfering in a single planets dark age sounds the most unlikely to me

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  • September 4, 2019 at 9:04 am
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    Great video but I'll stick with the asteroid impact Fact.

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  • September 4, 2019 at 9:21 am
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    Crocodile fore sure, may megalodon and maybe also titano boa, at least it gives continuously sightings, of true or not time will tell.

    Reply
  • September 4, 2019 at 9:55 am
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    That sun theory is fucking amazing.

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  • September 4, 2019 at 10:38 am
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    I think it’s B

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  • September 4, 2019 at 10:38 am
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    Did the dinosaurs wipe out the aliens? WHO THE FUCK KNOWS???

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  • September 4, 2019 at 11:34 am
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    Could you do when Elephants attack

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  • September 4, 2019 at 11:42 am
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    Lord Beerus killed all the dinosaurs.

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  • September 4, 2019 at 11:47 am
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    Haha. Thats funny because everyone knows dinosaurs never existed, duh. Go read your bible. Join CAD (Christians Against Dinosaurs) to learn more information. Dinophilia will be the downfall of man.

    *reporting this video for pornography

    Reply
  • September 4, 2019 at 12:06 pm
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    Ten most triggered people considered dangerous and that would kill you lol do a video on that lol

    Reply
  • September 4, 2019 at 12:14 pm
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    Damn these are good theories lol most i haven't heard anyone mention these, apart from thr aliens bit lol

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  • September 4, 2019 at 12:15 pm
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    Also it could have been a disease that wiped them out

    Reply
  • September 4, 2019 at 12:45 pm
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    Aré we being harvest ? Sounds like things I’ll do to my garden

    Reply
  • September 4, 2019 at 1:04 pm
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    Eric Dubay did an interesting video on Dinosaurs.

    Reply
  • September 4, 2019 at 1:13 pm
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    Short answer
    No. No they didn't.

    Reply
  • September 4, 2019 at 1:17 pm
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    Aliens are responsible for global warming?

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  • September 4, 2019 at 1:27 pm
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    Aliens: we come in piece
    Trex: Food!
    Aliens:blast them!

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  • September 4, 2019 at 2:06 pm
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    Megalodon

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  • September 4, 2019 at 2:17 pm
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    THE FLOOD KILLED THEM !!! 98% ore so

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  • September 4, 2019 at 2:20 pm
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    I can clear this up – I went back in time and killed them all with my bare hands, it only took a few days

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  • September 4, 2019 at 2:27 pm
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    Omg that’s what I’ve been saying that the aliens killed off the dinosaurs and maybe the dinosaurs where here for aliens to hunt? And then they created us as better prey? Idk very interesting

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  • September 4, 2019 at 2:40 pm
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    Futurama proved the giant brain killed the dinosaurs.

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  • September 4, 2019 at 2:46 pm
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    God whiped them out as they were the animal version of the nephilim.created by the fallen angles .they sinned against all life

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  • September 4, 2019 at 2:55 pm
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    Over the top editing tbhhh. Like it’s just kinda cringee the music and the transitions an all. If this was a scary video I’d get it, but it’s on dinosaurs….

    Reply
  • September 4, 2019 at 2:58 pm
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    Heres a theory. Dinosaurs killed themselves cuz they saw humans coming in the future.

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  • September 4, 2019 at 3:54 pm
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    Dinosaurs Never Existed:

    https://youtu.be/ubkZVzVv4Nc

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  • September 4, 2019 at 4:08 pm
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    No that’s all I have to say

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  • September 4, 2019 at 4:16 pm
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    Don't say dominant let's say the most naive ignorant race of complete anti coheseve 4 legged 20 fingered gelatinous calcium bags

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  • September 4, 2019 at 4:54 pm
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    Glad to see that you haven't died!

    Reply
  • September 4, 2019 at 5:14 pm
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    Compared to most of these theories… 👽 Aliens doesn't seem too much of a stretch!!!
    😂😂😂

    Reply
  • September 4, 2019 at 5:16 pm
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    There is plenty of history that says humans hunted and killed them they were called Dragons the word "Dinosaur" was invented in the 1800s . In 2019 we still call large wild lizards dragons for example the Komodo Dragon so clearly the historic accounts of humans killing them make a lot more sense than a bunch of scientist arguing hypothesis for fame in some lying ass text book.

    Reply
  • September 4, 2019 at 5:22 pm
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    Honestly dude this video is based on theories if you want facts go out personally and dig up thier bones and that Q and A was a joke because I already knew it was crocodiles they are a perfect example of dragon flys know why? For thier own kind of spieces they reached the perfect evolution form and humans existed at that time as well I can say based off science why there is black and white people those who were effected by the ice age went underground this was how white people became a thing and for our lovely black folk they were not affected by the ice age because they were in Africa which is the hottest continent on our planet based on our current recording the people there faced severe solar radiation so they became darker to cope with the sun's radiation….like come on science explained it and DO NOT ASK WHAT ABOUT THE ASIANS BECAUSE THEY ARE BIPARTISAN THEY ARE NOT BLACK OR WHITE

    Reply
  • September 4, 2019 at 6:09 pm
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    Wow are you running out of content? Seriously? Only uneducstee flat earthers retards would believe this dumb ass shit. Unsubed.

    Reply
  • September 4, 2019 at 6:43 pm
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    Aliens are not God. All religions point to one source- one God. The dinosaurs were wiped out by a meteor rock a supernova, by the real God in heaven to make way for human beings.

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  • September 4, 2019 at 6:58 pm
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    No aliens took out the dinosaurs lmao aliens are even real u dumb cocksuckers. Lmao.

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  • September 4, 2019 at 8:03 pm
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    I think number 1 is the answer.

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  • September 4, 2019 at 8:26 pm
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    See the dinosaurs in natural habitat is awesome. I’m less annoyed buy them than people

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  • September 4, 2019 at 8:43 pm
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    Wow something that didn't exist wiped out something that doesn't exist what a crock of s***

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  • September 4, 2019 at 8:49 pm
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    Can you do when Lawn Mowing Goes Wrong

    Reply
  • September 4, 2019 at 9:09 pm
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    Here is a better theory: the dinosaur God, Godzilla, killed them all. At the rate of pollutant and global warming, Godzilla going to come after humanity next.

    Reply
  • September 4, 2019 at 10:00 pm
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    🤡🤡🤡🤡🤡

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  • September 4, 2019 at 10:01 pm
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    Who agrees creepy music is unnecessary?

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  • September 4, 2019 at 11:42 pm
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    Who is "they" specifically?

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  • September 5, 2019 at 12:27 am
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    I think for the question it's be in my theory, I hope the answer is correct.

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  • September 5, 2019 at 12:54 am
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    REQUEST: When Wrestlers Assault Other Wrestlers please

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  • September 5, 2019 at 12:54 am
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    I've seen a dinosaur

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  • September 5, 2019 at 1:08 am
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    Diurnal blindness makes sense; without a lens shade there are conditions which cameras subjects are whitewashed, over exposed and null of informative composition: ocular biology even today require the benefit of heavy lidded, broadly browed sockets and eyes. An eye bill would be most appropriate for today's genesis of fauna.

    Reply
  • September 5, 2019 at 1:15 am
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    'Pupal-insect-plague' induced defoliation resulting in extinction, makes as much hypothetical sense as 'hemophagic-parasitic-insect-plague' induced extinction: but I'm more likely to believe both factors effected the saurian die off simultaneously and with equal intensity.

    Reply
  • September 5, 2019 at 1:41 am
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    Firstly I believe science doesn't need to search in reverse for a saurian derived breeding stock, to the contrary; Selective breeding of anything can create saurian content, even human genes can be disheveled enough to cue a genetic divergent subspecies which selectivity can reinforce upon.

    Reply
  • September 5, 2019 at 1:58 am
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    I'd rather let entropy remove the diminishing species and know that life goes, rather than recreate the dead

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  • September 5, 2019 at 2:25 am
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    No they did not

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  • September 5, 2019 at 4:10 am
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    Technically aliens could have whipped out them to make it more livable and better fitting for us think about it

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  • September 5, 2019 at 5:23 am
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    Or or a it was the asteroid the whole time

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  • September 5, 2019 at 5:30 am
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    Why aren’t we able to find more fossils of the dinosaurs in higher numbers in any one area? Why are the fossils spread out so far apart?

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  • September 5, 2019 at 5:32 am
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    The dinosaurs whipped out the aliens

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  • September 5, 2019 at 5:33 am
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    These theories of how dinosaurs disappeared are scary

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  • September 5, 2019 at 5:58 am
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    B crocodile

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  • September 5, 2019 at 6:16 am
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    No alien did no wipe out something thing that did not exist dinosaurs only got discovered in the 1800s but man has been digging in the ground for 1000s of years but never found one piece of a dinosaur don't u think thats strange dinosaurs are not real it was make to get the people in to something new just like tvs phones games sports just to keep the people distracted from the government are really doing its called indoctrination wake up ffs

    Reply
  • September 5, 2019 at 6:34 am
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    What aliens the ones we happen to never see I mean ghosts get cought on camera but aliens don't?how stupid are you grow up

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  • September 5, 2019 at 8:01 am
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    B crocodile

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  • September 5, 2019 at 8:34 am
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    I had my headphones on and it’s 3 am and that shit at 4:20 ain’t cool yo

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  • September 5, 2019 at 11:27 am
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    I killed the dinosaurs.

    Reply

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