Hey guys hope you're having a great day,
thank you so much for watching Beyond Science,
it's Mikey Chen.
When we think of dinosaurs and humans,
we never associate them with each other
because they supposedly belonged to completely different time periods.
Dinosaurs were prehistoric reptiles
that appeared during the middle to late Triassic period of the Mesozoic era,
which is around 230 million years ago.
They were members of a subclass of reptiles
that included birds and crocodiles
And got their name from the ancient Greek word 'deino" meaning terrible
and 'sauros' which means lizard or reptiles.
Dinosaurs first sparked people curiosities in the 1820s
when scientists found huge bones of an unknown reptile in the English countryside.
Ever since then,
dinosaurs have been favorite of children and adults
probably because they're extinct and can no longer eat us.
Their sheer size and uniqueness has inspired many documentaries, movies and stories alike.
Humans, on the other hand,
according to scientists,
are relatively new to earth compared to the large lizards,
while our ancestors have been around for about 60 million years
modern human evolved about 200,000 years ago
that means that humans and dinosaurs never co- existed
much less interact with each other, right?
And although many people believe that
it's impossible for humans and dinosaurs to have co-existed,
there have been clues from fossils, paintings, ancient sculptures and more
that tell a slightly different story,
implying that humans did in fact interact with these ginormous lizards.
I know this is a super controversial topic
but it's also really interesting.
So, here are some clues for the coexistence of humans and dinosaurs
Hear it out and make your own decisions.
One of the clues was found in May of 2012
when the brown horn of a Triceratops
was excavated in Dawson County, Montana
that was dated to around 33,500 years ago
Triceratops, a name that means 3-horned face
is believed to have first appeared during the Cretaceous period
around 68 million years ago.
And became extinct after around two million years.
The Triceratops brown horn found in Montana
was stored at the Glendive Dinosaur and Fossil Museum
which sent a sample the outer portion of the horn to the Paleochronology group
and wanted to carry out Carbon 14 dating.
The head of the Paleochronology group, Hugh Miller
then sent the sample to the University of Georgia for that exact purpose.
For those of you who aren't familiar with Carbon 14 dating,
it's basically the way to find the age of certain artifacts with biological origins
up to around 54,000 years old.
Carbon 14 was never used to test dinosaur bones in the past
because like I mentioned
it's only reliable up to 55,000 years.
But that's only because scientists thought
that it was useless to test bones, had belonged to creatures
that became extinct 65 million years ago.
Because of this, methods such as radiometric dating of volcanic layers
is typically used to test dinosaur bones
which yielded results that were more based on assumption.
It became clear years ago
that paleontologists were not just neglecting the test dinosaur bones for c14 content
but were refusing, too.
After the Triceratops brown horn sample
was sent to the University of Georgia for C14 testing,
it was divided at the lab into two fractions.
One fraction yielded an age
of 33,507 plus or minus 120 years,
and the other an age of
41,010 plus or minus 220 years
The reason why they splited the sample into two fractions was because
it reduce the possibility for errors.
The C14 test results
that came out were not surprising to the Paleochronology group
because they had carried out the test on dinosaur bones before.
All the results date back to thousands of years
instead of millions of years
A model created by the group in 2003 showed that
dinosaur bones had C14
that range from 22,000 to 39,000 years.
Another discovery came in the form of soft tissue
found in dinosaur fossils in March of 2005.
According to paleontologist, Mary Schweitzer,
the soft tissue was discovered inside a 68 million years old T-rex leg bone from Montana.
But researchers were able to rehydrate the tissue
and proved the existence of blood vessels, blood matrix and connective tissue
This is really strange
because scientists had previously believed
that tissue proteins are support to degrade
in a million years or less,
even in the best of conditions,
indicating that the bone belonged to a T-rex
that most likely died less than a million years ago.
What's more, a small Ceratopsia,
dinosaur that lived approximately 70 million years ago
was actually carved by the Hongshan culture
a Neolithic culture in Northeastern China.
The carving was made out of jade
and looks exactly like a Montanoceratops.
In addition, Marco Polo also recorded
that he saw a 50-foot reptile in 1100 AD
with quote: "Jaws large enough to swallow a man
and a tail so heavy
it left a trail in the sand as if a heavy beam had been dragged across.
There are many more examples of humans and dinosaurs coexisting
from the Ica stone that were carved around 1,500 in Peru
that show images of dinosaurs
to the Indian arrowheads found in the late 1800s
that will mixed together with Iguanadons
Duck-billed Dinosaurs, Ichthyosaur and Plesiosaur fossils.
So maybe dinosaurs did not die off as early as we have previously thought.
Or there may have been a few stragglers
that made it to the extinction.
So let me defer the question to you guys.
Do you believe that humans, at one point, coexisted with dinosaurs?
Do you believe The Flintstones are actually happened (Một bộ phim hoạt hình của Mỹ)
well, not to that extent, right? (không chỉ trên phim hoạt hình)
And if so, how did they not just eat us all?
Thank you so much for watching this video.
I'll see you later.
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