Pangea split up well before the Cretaceous extinction event, these events occurring about 200 million years ago and 66 million years ago respectively. If you looked at Earth from space at the time of the final extinction event, you would have been able to identify each continent, even though some features might seem different or were under water at the time. Spinosaurus and Tyrannosaurus didn't live during the same time frames. Spinosaurus lived between 99-93 million years ago, whereas T-Rex roamed the Earth between 68-66 million years ago. That's just a few of the issues I caught in about the first 20 minutes.
@@KeyUSeeCZ It’s still misleading. Imagine, for instance, I decided to make a documentary about the end of World War 2. I decide to start it by saying “the year is 1945. The Roman Empire had already fallen.” Technically it’s a true statement. But someone unfamiliar with the story would think the Roman Empire fell during the events of WW2. Same thing applies to this video. It doesn’t make much sense to even bring up Pangea in a video about what happened after the extinction of the dinosaurs.
@@adammartin5866 Well that was a bad example, because that is exactly what would be told in some documentaries "Third Reich had fallen, just like the Roman empire it was said to replace" or "The Roman Empire had already fallen and yet another supposed empire is going to follow". English for someone not native can be misleading sometimes. Its not about the writer, but the reader/listener comprehension capabilities and that is not writers fault.
@@KeyUSeeCZ fine. You want a more dramatic example. “ the year is 1945. The dinosaurs of the Cretaceous period have been wiped out by a meteor impact.” And that example is in a smaller time frame than Pangea splitting up and the extinction of the dinosaurs.
I don't think the large carnivores like T-Rex and Spinosaurus were continually fighting and attacking each other and trying to eat each other...I think it was more like crocks sunning on a beach very tolerant of each other, and every now and then they would fight for various reasons.
We know so much more about dinosaurs today than we did fifty years ago. When I was in the fourth grade, we studied dinosaurs and there were dinosaur species that nobody had heard of back in 1971.
First job I wanted as a kid was paleontologist. I recall there being maybe 25 or 30 dinosaurs to learn about. It's amazing how much more we know. I often regret not following that first dream.
It also amazes me that dinosaur bones weren't discovered until 1677 which is pretty recent if you think about it. Imagine if that asteroid never hit, where we would be today and how far behind would we be in 2023.
@@wHw_Syxx Back in 1985, the people at the Royal Tyrell Museum in Alberta, came up with a thought experiment. The asked the question "What if the smaller carnivorous dinosaurs survived?" and came up with the dinosauroid. A being that looked human.
Hmm, that's how it is when you get past 50, you start to look, feel, and act like a dinosaur:- it's not fair, we were the "Baby Boomers" and we were never supposed to become "old", it was in our contracts!!!! (sigh). 😔😉@@blaircolquhoun7780
I love the passion you have for your topic, it's infectious! I love how informative your videos are, I always learn something new. Thank you so much! I'm looking forward to the next episodes!
@@spiritfingers98 - I'm reading them only for myself, thank you very much. Wouldn't know how to get into contact with the voice-over bot to correct it anyway.
Wow that’s wrong, it’s not one man lose is other one man gain, that’s sexist. You could’ve said one things lose is other things gain. Way to leave out women.
I just about to say something... If he prolongs that pronoucing if that S one more time.... the only break you get, is when you don't hear a word that ends with S. In the 10 minutes I watched this, I was more concerned on the pattern of the script then what was actually being said.
I like the way the narrator says "Theee Dye-NOH-sau-RA-ZAH". Edit: it's odd that crocodile evolved to become less efficient swimmers. And yet, they persist.
I mean is it really odd? Superspecialized animals are the most vulnerable to environment changes and crocodiles are one of the biggest generialists that there are. They evolved as fish eaters but instead of specializing at becoming better at catching the more elusive fish (and later sharks and other bigger deeper water animals) as some of the prehistoric ocean reptiles, somewhere along the way they decided "fuck it, this shallow water fish is good enough" and instead in addition to that talking in gaming terms started to abuse probably one of the of the most broken things possible - camping at the water sources for occasional but also inevitable bigger meal. Crocodiles are kinda both generalist and occupiers of one of the most reliable and least impacted by big environmental changes niches possible at the same time which is why they are to this day more or less the same as they used to be during the times of dinosaurs (outside of temporary reduction in size after the asteroid cataclysm).
The speaker has an odd emphasis on all trailing S’s. I wonder if that is a computer generated voice? The script has an odd structure that might be AI generated, too.
Makes me wonder if it's not an AI reading it. I mean, what's a "Pleistosaur"? I've never thought I was a snob when it comes to pronunciation, but c'mon, even little kids know how to say 'plesiosaur'.
Wonderfully, educationally, well researched, grammatically exquisite, videos. That said, could you please improve your AI-generated (or Coming-Attractions-Hollywoody) narrations regarding vocalized word endings? Sounds very Forest-Gumpy. Thanks
Climate change refers to long-term shifts in temperatures and weather patterns, mainly caused by human activities. Climate change happened when there was no life on earth and has been happening since the earth was formed. What do they think happened when the earth was covered in plants, there was more oxygen in the atmosphere, and a fire started with nobody there to put it out? Or when lots of volcanoes were erupting? Climate change happens with or without humans.
Yep - It's a no brainer...lol. The climate will change regardless of humans and our activities. History and geology show that. There's big money to be made from the global warming scam/emergency that our elites insist we are having. As far as human extinction goes they did a real job on us recently with the lab virus that they inflicted on us in 2020 - the lunatic elite politicians are more likely to cause human extinction because they are too stupid to grasp a basic understanding of how viruses work yet they persist on fooling around with them in their shonky labs. We are in the hands of fools.
This is true. However, human activity affects it. All that oxygen produced by plants came from carbon dioxide that the plants brothe (heh.. breathed). They took the c out of the co2 and released the o2, keeping the c. They made a difference. They eventually became crude oil. When humans burn that oil, the fire takes in o2 and releases co2, returning the c into the atmosphere, gradually reversing the process that the plants originally performed. After burning shit-tons of oil over many decades, a significant amount of o2 gets converted back into co2, enough to have an effect on the climate. Its small compared to all the other natural processes, but enough to eventually make a gradual difference
Think about it. You admitted the plants made a difference. If that difference gets undone to some extent, that will eventually lead to a measurable effect. When done on an industrial scale, why wouldnt it cause change? Humans are pretty good at burning plants in all their forms, including the ancient ones whose matter has become crude oil
I disagree that its mainly caused by human activities. Its partially caused by human activities. However, there is a tipping point at which one type of change triggers another type that contributes to the overall change that ends up snowballing into a particular direction
It's funny how those who can't be bothered to make their own videos and also refuse to pay others for their work..... Complain about the information given in the video. 😅
What i find most interesting is that dinosaurs were wiped out and earth was pretty much inhabitable.. yet slowly with time, new life was born and evolved into what we have today. So it's safe to say.. even on planets that seem deserted or couldn't possibly harbour life, given enough time and evolution.. can as well. Because it happened here.
Not only that but considering organisms like the waterbear which can survive in the void of space the ideas of panspermia seem entirely plausable and proves that life has the potential to survive anywhere.
We human's could destroy everything down to Amoeba and life would eventually evolve back to the complex life forms again. Only a total sterilization would stop it coming back. Or when our sun envelopes the planet eventually
Very well known to be way less important then the meteor as the reason of the extinction. That debate is over. But yeah, they could've mentioned it, since it did happen and was a big event.
@@frankgeeraerts6243 I agree! We have to stop worshipping at the feet of scientists all the time! They get a lot of things wrong and they are constantly changing their theories! Of course we can't go back to silly superstitions and crackpot religious beliefs, but neither should we believe that scientists are infallible! 🤔
Seriously though, the one thing thats been proven over and over by scientists and many in the STEM field is that no matter what time of day nor what day of the week... before, during and after dinosaur extinction, there was always absolute gridlock traffic all around the city of Atlanta and its suburbs 😂❤🎉
It's difficult to take the video seriously when it keeps repeatedly using a graphic of a triceratops skull on a stegosaurus skeleton. Top flight narration over bush league graphics.
Perhaps the dinosaurs were reduced to a few smaller species who would have made an eventual comeback if not for the post apocalypse mammals which had been reduced to small burrowing scavengers eating whatever they could find including eggs of the remaining dinosaurs finally ending their potential comeback.
Well mammals was already present during the late cretaceous period. If it wasn't for the asteroid, Earth would have suffered a new icy age anyway since that stuff is cyclical. So large dinosaur megafauna would have adapted or hit extinction. What people usually ignore is the fact that dinosaurs average dimensions was around that of a cat till that of a cow. Then there was the megafauna. Those large animals we see in the movies. It seems also that species like the T-Rex was part of the megafauna. But the average size is way smallers so, once the icy ages hits, many species would die and mamnals would thrive occupying those niches. In the end, even without asteroid, Earth today would have been similar to ours with just more species of reptile/birds like creatures. Most of the fauna anyway would have been made by mammals due to the fact that mammals are more competitive than reptiles, birds and dinosaurs. It was stated that dinosaurs for example had mix blood. Not warm blood like mammals, not cold blood like reptiles, but mixed. While mammals with their fast life cycle and methabolism are just better suited to adapt to the most extreme environments. We find for example mammals that lives from the most hot temperatures on the planet to the most freezing. With a slight preference for cold environments. Probably in the case of no asteroid impact, dinosaurs would have remained in the hot zones while mammals would have occupied the coldest ones. I mean, they would have dominated or had more species than the average in those climates. While in hot environments the dinosaurs would have had the supremacy.
This is 2 weeks old as I begin to watch it, so far I’m left astounded that new information isn’t being applied as opposed to the continuation of propagating what we now know to be false information. That was all good when we didn’t have a good idea and was making educated guesses but now we know more and should be passing that information along. A lot of the dinosaurs that we thought of as scaled reptile like beings were in fact probably feathered bird like creatures. And as we learn this new and updated information we should be passing it along. I know when I heard this the first time it stirred conversation between my wife and I.
Gotta love science and all the discoveries and deep dives into history. Those of us who spend the time watching documentaries instead of other short vids about nothing tend to learn more, pass that information on to anyone willing to listen. When they talked about birds, I was taken by surprise! I had heard something like this not all that long ago, but it still makes me look at my conures' feet differently.😁🥰
You sound illiterate. Take out "my wife". It would just be "that started a conversation with I." See, stupid. "A lot of dinosaurs uad feathers and not scales." You see one tictok and think you're a paleontologist. Shut up and listen. You might learn something.
@@stephenmartin7632 dinos had feathers, you might need to check your sources again(and also re-learn how to read koz aparently you can't - koz the man never claimed dinos were birds or something)
At about 1:42, there's a Triceratops skull sitting in front of what appears to be Stegosaur ribs and spinal section. Triceratops lived during the Cretaceous Period (145-66 mya) while Stegosaurs lived during the earlier Jurassic Period (200-145 mya). At 10:24, why is there a submersible in the background behind the Mosasaur?
I find it funny that the skeleton at the start of the video was a triceratops head on a stegosaurus body. Bearing in mind that besides the obvious impossibility of this creature existing, stegosaurus died out around 70 million years before the last triceratops died out due to the extinction of the dinosaurs.
Protip: mass extinctions often occur around the changeover from one period to another. Be extra careful around these times, and double check your insurance is in order.
7:19 extinction event "66 MYA" 8:45 in the cretaceous "65 MYA" Correction the "65" number is too small. It should be at least 66, if not 67 or greater. 65 MYA was in the Paleocene Epoch, in the Paleogene Period, in the Cenozoic Era, in the Phanerozoic Eon.
this was made by AI, ive seen an increasing number of these on YT in teh last week. we as society are going to have to be even more descerning with what we take as fact from now on.
Also this consistent, weird way of the voice going deep down and then up at the end of each sentence for no reason. Sounds so strange and distracting....
The weight and size of the largest dinosaur was wholly dependent upon the prevailing atmosphere's percentage oxygen level. Over the dinosaur's reign, The Earth's atmosphere had -- at its Zenith -- accumulated to perhaps 40%. As it fluctuated more or less over tens of millions of years, that range between was as much as 25 to +3% from current levels. Thus was an established "top-size" for any given period.
Ive had training in gas/oxygen levels in manholes and your comment has always had me thinking of Prehistoric levels too. The high oxygen levels helped these creatures survive. The Pteradons to soar on solar winds
Not all parts of the earth must had been totally destroyed. A lot of different dinosaurs survived and evolved into every bird we ever knew. Like the prehistoric Terror Birds (Phorusrhacidae) or Moas (Dinornithiformes).
Very well done. A documentary of our end? The way our planet is changing, not for the better either, and our world wide hatred of each other, as nations, bodes ominous for our ultimate survival as a species. Sometimes I think we don't disserve this planet and we are "proving" it by not so slowly destroying it along with ourselves. Yeah, let's go to Mars and destroy that as well!
No, our hatred and violence are the most glorious and natural things in the universe. Planet will continue changing, weak animals will go extinct, strong ones will survive. If needed we will destroy this Earth and go to Mars.
Your videos have ignited a passion for science and the mysteries of the universe within me. Thank you for being such an incredible source of inspiration.
1:05:12 ten thousand living species of birds have been recorded today whereas it seems that there were only a few during the dinosaur era including the archeopteryx and lines most of the modern bird orders were established and put in place 55 million years ago the speciation of the different groups
The requirements for a bird to fly is numerous. Hollowed tubes for feathers. Hollow bones. Lightweight bodies. Internal organs also need to be different, due to metabolic changes. Now, r u gonna tell me that all of those mutated at once?
All the dinosaurs experienced the catastrophic event at the same time. So, they all sht out of fear and then died. It took time for all that methane to escape the earth's atmosphere...
Seems there are an extremely well educated bunch that watch this channel. Incredibly refreshing to see. However, it does mean that the videos have to be meticulous. Reading the comments is like reading a professor test correction. I liked this video and appreciate the depth to which the audience fills in some of the details. A for video. A+ community.
three foot tall intelligent cockroaches, sifting through the radiactive remains of humankind a thousand years from now: "what geniuses! What madmen! Look at all they accomplished! How could they have fallen after reaching such great heights?"
Popularisation with dramatic music and voice does not help in getting the facts straight. There should still be a 'probably' around the extinction of the Dinosaurs for example as there were different events and changes involved and we still don't know how much each of these had their own separate impact.
This documentary does not show the exact time scale of specific branching of species. It's important to show the drawings or computer simulation of how some found skeletons would have looked like and how the shapes morphed towards the existing species today.
1: Even if you were right (which you're not), according to what you said, that means it was the last Mass extinction!!! Just not the final one. And 2: There is no *MASS* extinction happening now. Sure a couple of species might have gone extinct at the hands of Man, but that's not a MASS extinction! We're pretty bad at doing MASS extinctions if you were right (again, which you're not). I can almost guarantee you're a "progressive" SJW leftist 🙄
Funny it is listed as a "climate change" video. Got to keep up the bogus propaganda to get us to fund our own destruction. More CO2, more warmth, and more cheap energy from fossil fuels = more life on this planet.
