Astrophysicist explains why dinosaurs died when crocodiles survived
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- Опубліковано 9 вер 2024
- Astrophysicist Hakeem Oluseyi breaks down a new study that suggests how the dust from the asteroid that hit Earth blocked the sun to an extent that plants were unable to photosynthesize, a biological process critical for life, for almost two years afterward. #CNN #News
I met Prof. Hakeem when he came to give a lecture at our university a few years ago. He's exactly like this. Very passionate and very smart.
So smart he doesn’t realise that cold blooded animals need the sun for their energy. You lose the sun because of the dust then those cold blooded animals would perish just as warm blooded animals would perish. No there’s a massive hole in this theory.
Yea I remember that day
Is he Nigerian? He has a Yoruba name, but he sounds completely black American.
@MalamIbnMalam He's an American born in NOLA. Wiki says he changed his name.
@@chuck9380 lol, how would you?
A black Astrophysicist speaking to a black journalist about dinosaurs going extinct feels like I'm watching Wakanda Nightly News 😅 I love it ♥️🖤💚
One is American, the other is of Nigerian origin.
I don't see why that matters, a white American is not going to say to like a German oh look one white journalist talking to a white Astrophysicist
It’s an awesome thing to see🖤🖤
@@torpedoboy4Diversity Hire Channel
@@MalamIbnMalam Who cares what a wyte American or germany would say. Black people have a right to love themselves..
@@MalamIbnMalam it's just refreshing to see professional and educated Blacks in a different light. The media usually depicts the negative side of things.
We need more content like this on the news.
You get subjects like this on PBS. Most people don't want to learn anything so they don't watch PBS or listen to NPR.
Have you met a Trump supporter? Their IQ and shoe size is the same number.@@celestialnubian
Huh? Where have you been for the last ⅓ of a century!?
We've long known not only _when_ the death knell sounded for non-avian dinosaurs, but _where_ and _how_ it happened.
There is a whole channel that’s been doing this for decades
@@celestialnubian yes and half of americans will deny any of this and its all fake and jesus 2000 years ago started everything.
FINALLY! An Astrophysicist on tv other than NDT...
It would have been better if it had been NDT.
This dude's pulling shit right out of his ass. LOL
There were smaller cold-blooded animals than alligators that went extinct, and there were small dinosaurs that went extinct.
And even some insects, which are also small and cold-blooded, went extinct.
I have no doubt that it was a major part of the cause, but that was most definitely not the only thing.
@@lordgarion514 What is he saying that's not correct?
@@mikemccormick6128
He said the big dinos went extinct because they were big and warm blooded, which means they needed a lot of food.
AND he said gators didn't go extinct because they were a lot smaller and cold blooded, so needed less food.
But insects are absolutely miniscule, and cold blooded, so need almost no food.
Just over 82% of all insects are estimated to have gone extinct during the Great dying.
If size, cold-blooded-ness, and amount of food is what was important, then insects shouldn't have lost any species really.
There was a one ton land animal, that survived the extinction and did VERY well. While a land animal similar to alligators,(also aquatic) around 3 tons survived.
So according this astrophysicists explanation, why did most of the tiny cold-blooded insects go extinct??
He oversimplified things, to the point where he was wrong, and the fact is there's a lot of luck involved in surviving something like a mass extinction.
Remember, not going extinct doesn't mean that species did good. It just means not all of them died.
@@lordgarion514 I'm not saying that you are wrong and I'm not an expert. I tried to verify your 82% number and couldn't find anything. I look at it a little differently than you in the sense that insects did not go extinct. I think you would have a better argument if they had gone extinct. Also, many insects rely on plants for food, so many of these species would have gone extinct from lack of food. I couldn't find anything on the 1 ton land animal. I don't know whether the astrophysicist is correct or not, but his answer seems plausible to me.
Whats your occupation and whats your highest educational qualifications?
No BS, This is actually the most fascinating subject and information I have seen on any major channel like this in a very long time. I love this video and hope to see more like this!
Yes the hard hitting life changing mind blowing news we all needed
@@cosanostra7377 Better than hearing more about Trump or Elon.
Dinos Rinos Swamp what ever...
@@GalactusOG They taught this stuff in elementary school in the 80s and 90s lol
@@TheMangoAnglo_onTwitter In the 80s and 90s it was still being debated as to what exactly caused the extinction. There where not so sure it was a comet yet. in fact it's still not for sure. just the most common consensus.
As humans we are very good at being reactive not being proactive.
this is why we're doomed..
As animals you mean. We are animals.
We’re not all doomed just the vast majority of us
But we are humans too. What’s your issue?
@MrGriff305 I think he's talking about climate change.
Woman opened this segment as if it was dinosaurs’ death anniversary 😂
Can’t believe it’s already been 65 million years…..seems like it was just yesterday 😢.
@@jackb8598lmao😅
😂😂😂
Where were the humans when the dinosaurs roamed the earth??
@@jortega61924Dinosaurs and humans walked the earth at the same time.😂
Been seeing this guy on TV for a long time. Good to see he's getting some coverage from bigger media channels.
Yeah he regularly appears on discovery channel
Hakeem is such a character 👍
Hakeem I agree he is a cool character but CNN is using him to push climate change agenda.
Looooove Oluseyi! He’s been on the series How the Universe Works on the Science Channel for a number of years and he’s funny and knowledgeable and quite the character (he helped take apart a car in one episode). Glad to see him getting some media attention.
He crushed it. 🦾
Wow. He explained it so well.
Absolutely. The astrophysicist said it in clear understandable everyday language. He is an unpretentious academic who is direct, and yet passionate about his communication. Neil's got competition.
But.. but what about adam and eve?
So naive you can't see it an climate change agenda been pushed to it's ignorance audience. Climate change is a hoax.
Yeah.
@antmck99 they came much later.
“…We could be a bit more mindful…” well said.
Really enjoyed listening to this astrophysicist. 💚
Bot
Yes
@@milwaukeechris4603Bots spreading an appreciation of science? What a wonderful suggestion! In this 'post-truth' age, anything to promoting critical thinking, and scientific evidence is needed! I think you might be on to something! Science promoting bots to counter all the misinformation bots and scams. Yes!
This guy can generate a lot of electricity with his head while talking.
Still has a way higher IQ than you though ; )
😂😂😂😂
Haha
I love the explanation but he wasn’t anywhere near animated enough for me tho 😂 this man has the passion of the science
It’s crazy too me that people didn’t know this already. I thought this was common knowledge. I learned this in elementary school. I guess the education really is different in different parts of the country.
Me too. Not tryna be snarky, but even the cartoons about the extinction depicted the dust cloud.
Yep
You actually believe the earth is that old?
I think people are missing point. I graduated high school 20 years and yes the dust cloud was known then to have most likely caused the extinction. The question is whether or not it was caused by a global dust coud causing a global winter. Or did the dust cloud stop photosynthesis. We are pretty sure of the root cause what we are not sure of us the details of how it played out.
It was a theory when I was in school....over time more evidence was gathered.
People should watch Last Days of the Dinosaurs. It explains this theory so well
Waiting for someone to ask why didn't the scientists figure this out 65 million years ago.
65 million years is a lot less data.
There weren't any scientists back then. Science hasn't even been around for that long.
😂😂😂😏
There were no scientists at that time.
where is this city sized asteroid even at… like where did it even hit it would still be there if that’s the case
Scientists say that the gigantic Chicxulub crater in the Yucatan Peninsula is the remnant of the asteroid hit.
@@senantiasathe crater is there. Where is the actual asteroid
@@ufarkingicehole vaporized on impact
@@ufarkingiceholemaybe it had the start of life for us?
@@DesmondKaranihad the receipe for life on it is what I think.it was us.thats the start of humans.😂🤷♂️
When the volcano Krakatoa erupted in Indonesia in 1883, there was an eerie darkened sky in Norway, influencing artist Edward Munch to paint his famous picture "The Scream"! Halfway around the globe, the sky was darkened by millions of tons of dust from the eruption. And this made people afraid of the fate of the world.
That volcano gave the US a cold winter and crops were not growing. It was called 'A Year without Summer'.
I love how these events INSTANTLY DESTROY conservatives' and other anti-science fanatics' claims that
"forcing gigatons of a substance into the air NEVER affects the climate". THAT is THEIR stupid idiotic UNIVERSAL claim that is DESTROYED by facts. Or, how sextillions of tiny little microorganisms produced the oxygen we breathe today. Obviously, these facts alone do not prove Anthropogenic Global Warming (AGW). A billion trillion other facts and logic do.
Read about the 536 AD volcanic winter that cooled the Northern Hemisphere for a couple of years.
@@GigaHellblaze the year without a summer is referred to the year 1816, one year after the 1815 Tambora eruption :)
That’s the same year Godzilla fought kong , but they say the photos were lost during a thunderstorm that year so we can’t prove it unfortunately
According to American history. They didn’t start digging for dino fossils until the mid 1800’s..
Never knew dinosaurs were warm blooded
Maybe I read it before, but it did not stick in mind. Now this fits in the bigger picture. Birds are OF COURSE warm blooded. (Feathers, eggs keeping warm). They are the successors of dinosaurs. (Skeleton) Only the very small ones survived because of food shortage.
The large mammals were
Mammals give live birth@@itsjob595
@@itsjob595 "The large mammals were" Yes, warm blooded is a quality of all mammals.
@@user-rq7hv6lf8cbirds ARE dinosaurs
I've been enjoying this astrophysicist in many of Nova's programs on PBS the past few yrs.
Very well done segment 👏
Wow, this is very fascinating 🙂
So the dinosaurs died from starvation without sunlight to grow plants for two years? America will be fine in such a scenario given our obesity rate.
Well, I guess people could adapt to cannibalism. But even though Americans tend to be obese, out of shape, easy to catch, I’m not sure folks any where else on the globe would be willing to eat them. After all, you eat what was on the plate of the thing that’s on your plate, and considering what Americans eat…no thanks.
These 2 have great chemistry
Agree
@@mzhappyfree7688not really.
Bec they are probably ummm..
They def could ummm
@@MrSachattack 😂
I'm so proud of my educated brothers ❤
I do appreciate the acknowledge from another brother 😊
As a non-American, to me this sounds racist. 🤔 It sounds like you are starting with the assumption that a black person being university educated is exceeding expectations, compared to other American citizens.
In 1862, the first black American men, and the first black American woman graduated from University. The first white woman to earn a bachelor's degree was in 1840, 22 years earlier. Presumably you no longer give special praise to women for achieving degrees, because it has been common for over 50 years, as I assumed it was for black Americans, no? Please let me know what I am missing, so I can better understand.
I'm just proud, that's it.
@@nkanyisomdlalose3702 But black people are just as intelligent as any other people, so why you would be particularly proud? 🤔 Wouldn't you just assume that many black people are going get educated, as with other people? It seems like you are proud because your expectations of black people getting educated are low. That's why your comment seems racist to me.
Your pride seems to imply that you think black people have additional obstacles to overcome, which makes their achievement special, not the norm. Maybe you do mean that, in terms of opportunity, not in terms of ability to academically achieve.
So...do black Americans have limited opportunities to attend university, and complete a degree, compared to white Americans? Is that it?
Sorry to trouble you with this, but I really want to understand.
@AlGilani-nt3zq you can’t even accept a black man achievement without mentioning BLM , your hatred toward black people is mind blowing.
Crocodiles rule 🐊
this has been known for years. I remember a lecture in grad anthropology class, moons ago.
*_FUN FACT:_* _In the ice age when the ice sheets started to break up do to global warming. The Polar bear populations started to grow from that._
That is a fun fact! 🤓 It's as if polar bears need not too much ice, and not too little ice, but just the right amount of ice.
Did you get the 'Goldilocks and the Three Bears' reference? 😁
@@daniellamcgee4251 _Yes but the earth never did stay the same._
I wish I could of seen how the dinosaurs reacted. Must be strange having your world go black unexplainably.
They were probably like, “Oh no!”
Just put your cat/dog in the bathroom and turn off the light. The dinosaurs probably reacted like that.
Incredible!! Very interesting and informative. Being from Florida, I always seen Alligators as dinosaurs which they obviously are. Makes total sense as to why the survived the end of the dinosaurs
Alligators and crocodiles aren't dinosaurs. Dinosaurs weren't reptiles. They were birds.
The last common ancestor of both crocodilians and dinosaurs was about 250 million years ago, whereas dinosaurs didn't start dominating on land until about 200 million years ago. By 65 million years ago, crocodilians and dinosaurs had diverged significantly in evolution. Most crocodilians also became extinct along with the dinosaurs, but some smaller species survived, and are actually not much different today than they were then.
Alligators are not dinosaurs. Birds are dinosaurs, more specifically, a type of theropod. Both alligators and dinosaurs are archosaurs
NOT obviously. Crocs are not dinosaurs just like snakes are not.
@@bobjohnson7020dinosaurs were birds. So a T rex is NOT a dinosaur just to be clear?
@@Spiritof_76who decides what is or isn’t a dinosaur and on what basis?
This sounds similar to the blackout of 536ad, when three separate volcanic eruptions in the same year produced enough ash to blot out the sun and caused worldwide temperature drops and severe famines, in which millions died. This is also what scientist say will happen in the case of a 'nuclear winter'. If enough nukes are detonated within the same time period it will cause the sun to be blotted out for long periods, causing worldwide temperature drops and severe famine.
One can only wonder why this random info is being put out there at this point during current world affairs?? 🤔
Lol
Humanities teacher here. This is brilliant and brilliantly communicated. Can't wait to show my students here in the south of Spain. Kudos all!
I recognize this guy from the Netflix Alexander documentary. He has a calming voice when he’s explaining things.
Great astrophysicist Hakeem❣️
It is not a discovery
Had to check and see how many people showed up to claim dinosaurs never existed or that the dinosaurs and mankind existed together till the majic zoo boat story😂😂
Bruh! 😂
Robinhood, come on. LOL
Come on now. Everyone knows that Jesus rode on into Bethlehem on top of a dinosaur! 🦖🦕😂
@@markdavis7397 they were the dominate life forms. Only after they went extinct did our ancestors , the early mammals, begin to flourish .
@@markdavis7397 Just wait until they uncover those dino legal brief fossils.
The idea that we should say the NON-AVIAN dinosaurs died out, or that the dominance of dinosaurs ended, seem still not to be widespread consensus. The dinosaurs did not literally die out.
Some got to be really small compared to others.
@bigearl3867 some grew to be huge like your head
Correct you are.
@@bigearl3867The small mammals apparently survived too.
@yvonneplant9434
Bugs and seeds, as a food source. And gradually realizing that the monsters were gone. So it was safe to come out during the day.
*_Ashes to ashes. Dust to dust,._*
*_We begin and will end as dust._*
Star dust
@@BaithNa Yes, when our star the sun expands will be one of the first four planets sucked into it.
House Speaker Mike Johnson is in his den at home screaming,"BLASPHEMY!"
. . . I learned in second grade. In the 60s.
I think the discovery of actual particulate matter that could stay suspended for years is new and specific detail explaining what kind of dust caused the post-asteroid winters, rather than just knowing it was some kind of dust.
They were also able to identify the nature of the particulates' reflective properties.
Broadcasters have to encompass a broad spectrum of prior knowledge.
Dang. This guy is awesome. Neil got some competition.
This conversation would be illegal in Florida.
Clearly indoctrination. To some anyway.
True!!!!!!!!!
This guys movements is making me dizzy🫨😵💫
one of my favorite topics and journalist!
Congrats
That's what I'd always thought...when did anyone talk about wildfires???
We were taught this theory in school and I am old!
@@Babyluthi You'd be surprised how many folks have never heard this. By the way, what do you consider old?
Wildfires came after the dust cloud but it did rain down rocks and fire and those did start wildfires but in some areas they didn't have wildfires. So all the dinosaurs had to breathe was the ash and smoke in the air which affected their lungs in turn this caused them to die from inhaling so much smoke, not even baby dinosaurs lived long.
Hakeem is the man!
Racist
Why did small mammals survive?
Sometimes educated people can be the most stupid. It’s scary how many people listen to this and think he’s a genius.
If crocodiles survived because they are cold blooded and so don't require as much sustenance, than how did they survive the lack of warmth and sunlight that cold blooded creatures need for basking in so they can warm up?
Many reptiles bruminate (a state similar to hibernation) during prolonged periods of low temperatures. So they would only be active when there is enough heat/sun.
I guess life finds a way. Have you ever seen an alligator frozen in the water with nothing but it's nostrils above the water. Pretty amazing.
@@peterhanson3391 Very true.
Brumation
If "everything that eats plants is going to die, and everything that eats those animals is going to die" why did small mammals survive? Insects primarily eat seeds & plants, small mammals primarily eat insects.
He's lying dude. Just like Neil Tyson does. People will believe anything told to them. Ok so crocodile can go a year without eating. Yet he just said that dust last in the air for 15 years. So what animal was the crocodile eating once a year? It's a joke.
Plenty of insects feed on decaying matter, which there would’ve been plenty of on account of all the dead shit.
The new House Speaker is watching this segment with his eyes closed and his fingers in his ears. 60 million years? Hah, more like 6 thousand. His ancestors hunted with dinosaurs.
They are called Jesus horses.
俩人的默契十足，期待更多合作的视频👍🏼
We have Neil deGrasse Tyson at home…
😂
Whenever I watch an astrophysicist explain something on TV, I feel like they took Neil's job.
Yet he’s actually more interesting than neil. Crazy.
Yeah, they can survive just about anything, even if it's freezing cold oddly enough they can survive, which shocks me since they are cold blooded.
I already knew this. I was taught this many years ago.
Slow news day.
was taught that the asteroid make the earth super cold and dinosaurs just froze to death
Go doc O!!!
My kids learn a lot from him on “Baking Impossible.” He explains the mechanics in a way that she understands it. 🎉
I ❤❤ listening to Hakeem!
cuhhhhhh..............
How is this a new study? I remember learning this in middle school
It's to show a black scientists.
bingo, someone here gets it@@malachi-
Loved Hakeem from the How the Universe Works series, I would love an updated version of that
How is this news. This has been known for decades.
i am not sure what the name of this show is but im glad science is being covered by a news network
dinosaurs lived in 6,000 years ago. you can't even comprehend a million years lol
I totally agree
I believe in young earth Creation
Someone loves the taste of window
agreed
So where did all the warm blooded animals come from if all that remained was cold blooded creatures
You will find it's the other way around.
Most cold-blooded animals (dinosaurs) died out. Crocodilians survived because they needed far less food than their huge-sized cousins the dinosaurs.
As for warm-blooded mammals, they already existed, they were small and thus needed very little food, and sheltered underground, only coming out for food, like mice do today.
Small avians survived due to needing less food as well.
To be clear, the global winter that the asteroid caused affected all animals, all populations were decimated, but the ground-dwelling dinosaurs (as opposed to birds) were wiped out completely, never to return.
Thanks,Abby refreshing commentary about what happened 60 million years ago to dinosaurs and the tie in to todays
climate change.
@@TubTigers what a pleasant response.
@@vinceena You really shouldn't use the term "climate change" if you don't want to be mocked openly in 2023.
Stay boosted.
@@TubTigers it is not your mockery but your arbitrary attitude. You know what I meant.
@@vinceena I don't care what you think about my attitude.
See?
Get over yourself.
😄
@@TubTigers I will not further dialogue with you.
Why would you ask an astrophysicist this?
Because an asteroid caused it
@@neonbible08 so what! You would be better off with a biologist!
Don't tell Mike Johnson. He thinks dinosaurs were on Noah's ark.
or Bob Dutko. That moron doesn't know what science is or how it work yet claims he uses it
This IS THE ALVAREZ theory. Been around AT LEAST 30 YEARS.
The fine dust contained Iridium (not found on earth).
Humans do not have to eat three times a day, for thousands of years humans only ate once a day.
Yes, but humans are not huge.
@@Trusteft I'm not comparing size he said humans have to eat three times a day. I have only been eating once a day for the past 20 years and I'm fine
@jeffhampton2767 watch the whole video. Don't isolate one thing. Analyze and add all the information he gives.
@jeffhampton2767 thats a lie.
@@jeffhampton2767Ok but it's not about you , most humans tend to eat more than to twice, depending on their lifestyle.
If you are a big bodybuilder and a giant, you eat more than a skinny young woman.
Now dynosaurs are bigger than us,so they eat more. Even if they only eat like the, just one meal, they would have died because of starvation, no food was available.
On the opposite from us and the dynosaurs , you got reptiles such as alligators and crocodiles who only eat once a year, then go to hibernation.
Crocodiles can't kill you when they are cold, they must wait for you sunshine to heat their body but 65 millions years ago the sun couldn't heat up the earth.
Brilliant man who is clearly passionate about his craft and masterful at explaining it in simple terms to someone that knows nothing about physics or life sciences like me.
This is the news at its best.
anything and everything that could not crawl underground or swim deep into someplace was washed away.... that's why mice did so well... our common ancestor...
Just by how he talks with energy and confidence, It’s hard to question anything that he said!
I have 10 dinosaurs in my backyard. I eat their eggs every day.
We still have avian dinosaurs. Birds.
I was just about to mention that. You beat me to it.
The Ostrich is a warm-blooded dinosaur!
love this
I’m just watching this until my 80$ escort gets here.
Don't waste Your Money like That. 🤦♂️👎.
@@MrTamiya89 I have have 72k saved up it doesn’t hurt once in a while.
@@hundreds2696 That's Sad.
Spoile: it’s a cop
@@Iukereigns3460 Who Is?
Both very well spoken.
Unlike Trump and Biden lol
She is gorgeous 😍
Where do they get all these spurious timelines 66 million years etc 🤔
Hahaha "The first time we ever had global warming." - Hakeem Oluseyi
Nope!!
As a dinosaur nerd and science nerd, I knew that before anyone else did. Also volcanoes can do the same thing to the ecosystem but asteroids can do far worse to the planet.
This information seems to have been common knowledge for some decades. Some people have stated, in the comment section, that they were taught this at school. I am assuming more details of exactly how it happened are being established with further evidence. Otherwise, yeah, this isn't news, it's 'olds'.
Thats fake. The bible never mentioned any dinosaurs. Adam and eve was the first
If melting ice shifts enough weight off the poles and distributes it more evenly across the oceans, the earth's crust might do more shifting and cracking than we've been used to.
grown ass people worrying about dinosaurs when there are still slaves living right now on earth is crazy.
Stop being a victim and move forward!
Ok, so the dust cloud killed the plants, and the animals which ate the plants. What happened to the underwater environment? Could fish, aquatic plants and crocodiles have kept going?
New story? That’s been known for tens of years!
Love these dinosaur segments!
Dino AI technology ended badly. I'm sure of it
Those bougie dinos drank far too much Cappudino 🤣
Can you please repeat what you've said, wasn't paying attention.
I hope they cover things like The Lost Ancient technology and megalithic stone structures around the Earth. Because humans have had at least one extinction level event as well.
What bout covering things like solutions to lowering food prices so the average American family can afford to eat?
Nope.
@@milwaukeechris4603 Work harder and make more money.
Of course it's plausible.
But the main force of the universe is everything evolves to its maximum and then retracts and dies.
This political time out leaves me pondering Mammoths, Triceratops... Elephants & Rhinos! 😁
See...., 👈🤔 monkeys pull the blue lever,
thinking they'll get a piece of candy,
and their student loan obligations
paid by someone else...
Why did they say we didn't know this. This was covered on the discovery channel in the 90s
yawn
Don't tell Speaker Mike Johnson this...
Abby interviews her guest with questions I were also thinking and with questions I didn't realize I also wanted the answers to
They so smart, them wuz kangz and shee.
We don’t need to eat 3 meals a day Mr Astrophysicist…..
CNN is where the truth goes to die
No, that's Fox and OAN.
It took millions of years for the dinosaurs to get to the Titans that they were. And with 3/4 of life wiped out, that surviving life evolved into what we have today millions of years later. evolution baby.