What if Allosaurus was brought to the modern day?

have large batches of offspring relatively frequently would somewhat diminish humans ability to hunt them to extinction.
(This is a reupload due to audio issues in the first upload)

[@carsonianthegreat4672]

Allosaurus’ eggs would likely fall prey to rats and crows. There’s a reason why ostriches are notoriously territorial.

[@Sedimented.Studios]

as far as we know allosaurus lacked feathers at all like modern birds if it had any, so it couldn't make a nest and sit on it's eggs like a modern bird, more likely it buried it's eggs or built vegetation mounds like many modern reptiles and some birds, so it's eggs wouldn't necessarily be predated more heavily that modern reptiles, their eggs larger size might make them more of a target, but would also protect them from many smaller predators.

[@carsonianthegreat4672]

@@Sedimented.Studios good points, but many rodents have teeth specifically evolved to crack and eat eggs larger than their heads.

[@Sedimented.Studios]

There eggs would probably be closer to the size of the rodent itself, but definitely theres no denying that there would be predation on their eggs, i just think it wouldn't be disproportionate to modern reptiles and as such wouldn't be too detrimental, allosaurus most definitely dealt with egg eaters back in it's day too

[@Zavult]

@@Sedimented.Studios since we are speaking about reproduction problems there is one quirk of large theropods that i never see mentioned when talking about scenarios like this that i think would be their Achilles heel. In most ecosystems in the fossil record where large theropods are present we see only small carnivores and big carnivores with no mid tier carnivores present. Thats because the large theropods young serve as the mid tier carnivores in those ecosystems. so here is the problem: In the modern day the niche of mid tier carnivore is already filled. not only that but the niche is mostly filled by highly intelligent pack predators! Any young theropod would probably get curb stomped as soon as they left their parents care.

[@TheAnticlinton]

@@Zavult Thats a gross generalization. In fact no midsize predators is more of an exception, mainly in the cretacioous north where tyrannosaurs evolved from nimble juvebniles to larger megacarnivores.. For example, for over 40 million years the general dynamic was carnosaurs being the biggest while ceratosaurs being mid size. Then in the south abelisaurs were mid size, ranging between 5-8m, while megaraptorans became the largest predators.Other mid size predator examples: convanenator, neovenator, utahraptor, moros, alioramus, allosaurus itself.

[@Vrex360]

I'm drunk and I just wanna say you're doing all right my man. Allosaurus is my favourite dinosaur.

[@Sedimented.Studios]

niiiiiiice

[@Ash-nr7md]

Grow tf up

[@JohnV170]

Lol right on

[@BulkierEmu050]

😂

[@TeyuYagua]

Mine too!!!

[@Stothehighest]

I gotta disagree on lions going extinct, they'd just shift to favor zebra and wildebeast. And I'm fairly sure a herd of cape buffalo would very quickly learn to mob and gore young allosaur to death as an instinct, like they do with lions already.

[@trvth1s]

Allosaurus were theropoda so there was certainly parental care, maybe even from 2 parent. If buffaloes tried to gore then young massive parents would be there to kill them. We also cant forget that allosaurus were egg layers, they laid many eggs so their gestation period was far more competitive than lions and other mammals. If a baby got killed theid have many more on the way.

[@Stothehighest]

@@66Traveler99 They don't hatch at 3 tons dude. And it's never going to get to 3 tons if it gets stomped into paste while it's only 200 lbs. Which is what *I* was saying.

[@Stothehighest]

@@trvth1s Doubtful the parents would keep a 10-pack of hatchlings once they were over a size limit. Ostriches would be good stand-ins for the behavior you're talking about. But a juvie pack is more likely than a multi-age adult/subadult/juvie mixed pack. Just in terms of what they would need to eat.

[@trvth1s]

@@Stothehighest it's hard to say. Trex is the most studied extinct species ever, we know that they had a massive growth spurt until they got to about 2 tons in which point growth continues but slowly. They were likely cared by 2 parents until at that age they were very fast and massive powerful predators so maybe parents abandoned them at that age since theid be self sufficient and filling a different niche from adults. I'm sure allosaurus had a similar path. Oarents cared for young, fast growth until they were large enough to protect themselves and hunt.

[@theangrysuchomimus5163]

@@trvth1s "Certainly"? We don't know if every theropod had parental care.

[@chene-aurelgaudreau1072]

One thing to note, is that poachers, which are common in the Savannah, would probably see Allosaurus as a new source of income, and start hunting them. Because they reproduce fairly quickly, this would not be as devastating to them as it is for other large animals. But it would still likely be one of their most common causes of death.

[@rachdarastrix5251]

@Niggass1255 Your suppose to, that's the whole point of them.

[@assaulthetz]

Imagine Allosaurus starts to recognize the poacher's scent and start to lay ambush on them.

[@hoaxes8537]

​@@assaulthetz even more reasons to kill them which would make them even more hunted

[@assaulthetz]

@@hoaxes8537 Not just that, These animals are unpredictable. If a tourist would wander around to see, these theropods would immediately think that they're poachers. Also, who knows, we do not know how smart these things are, but we do know that Dinosaurs, particularly Theropods are warm blooded. Let that sink in, they might hunt not on the day, but always at night when the poachers are either resting or hunting the same time. They're not like the Elephants that knew they have to run, not like the Rhinos that they would blindly attack. These animals are just as capable as a hunter, well it depends on the terrain since they're massive by size. They might choose a rocky, forest, tall grass anything that they can take cover. Also they have a pack behavior, a very social one like Prides of Lions. They might have an alpha that is smart enough to counter poachers or rather to counter the ones who hold rifles (but i might be stretching it), not to the extent that they would think like a human by mind, but expect something when they manage to survive a poaching event of their lives. And let them learn from that experience. What we do know that they, as well could potentially more dangerous than poachers. They would hunt not just the poaching teams but everyone, any humanoid shaped person, that is living and breathing. Like how lions kill a cheetah cubs or like how Male bears kill a bear cub of from its fallen mate to have its female. The entire Allosaurus would see us as their 'enemy' not rival, not prey, but something that they would eradicate for the safety of their chicks. Well at least what i would think so, if they have a cognition similar to birds and other similar animals of behavior.

[@hoaxes8537]

@@assaulthetz the thing is there not smarter than a human nothing atleast that we know about on this earth is smarter than a human if they pose an actual threat night or day ambush or not poeple will kill them doesn't matter if they are a poacher or not claws and teeth are not stronger than an gun them hunting in groups will not matter because guns exist the more realistic thing is instead of them "hunting humans" they'll more likely run away or hide.

[@dondragmer2412]

I'm afraid there is no doubt that if Allosaurus had made it to the modern day that it would have become a prime target for trophy hunters and poachers. Poachers may have killed it for depleting the supply of elephants with their valuable ivory. Not sure if Allosaurus teeth would have attained anything near the value of ivory.

[@Tucher97]

That is a big definite but specifically those poachers who want something that can fight back as Elephants are certainly those who want zero smoke, though humans are humans who bring smoke for no reason.

[@lildragon6415]

Can you imagine trophy hunters going after Allosaurus before the invention of guns? It would be like a real life Monster Hunter video game.

[@charlotte3201]

@@lildragon6415 If we hunted mamoths to extinction using spears, allosaurus would be no problem. Honestly big cats would be more dangerous because they're smaller, harder to hit, much better at ambushing and are more agile. Sticking a spear in a big 2 ton animal is much eaiser.

[@lildragon6415]

@@charlotte3201 The Maasai tribe in Africa hunts lions. How do you think the atlas lion went into extinction?

[@charlotte3201]

@@lildragon6415 I didn't say hunting lions is impossible, I said they'd be more of a threat to humans than allosaurus.

[@petersmythe6462]

Keep in mind that juvenile allosaurus would need to reach adulthood in an environment where many other large and successful predators hunt in packs and their young get to freeload their way to adulthood. Allosaurus may have had parental care but this likely didn't include complete food provisioning and young would likely be hunting for themselves. Given they are slower than most other African predators, the risk of the young becoming prey is probably a serious concern.

[@mhdfrb9971]

The juveniles would be much faster than adults

[@ferociousrazordino3581]

it literally lived in an environment with tons of predators and there's no tests on young allosaur speed so your assertion is baseless

[@catpoke9557]

They also had to deal with predators when they were alive. The allosaurus babies were fine. Most will die before adulthood, as is the case with modern predators.

[@doragonzx]

but they young allosaurs would probably form packs or mobs

[@henrykkeszenowicz4664]

My favorite dinosaur was pretty good at coexisting with other theropods in the Jurassic, so I'm quite sure that leopards and hyenas might coexist with it quite well due to niche partitioning. Additionally, the size difference between lions and Allosaurus would be severe enough to consider their niches as separate ones, as lions could hunt smaller prey while Allosaurus would be limited to the largest animals.

[@trvth1s]

Allosaurus would also practice kleptoparasitism, taking lion and hyena food at will. I beleive an issue would also be large mammals sustaining enough healthy population numbers to support a super predatory theropoda. Allosaurus hunted in a time where megafauna had a far more competitive gestation period than todays mammals.

[@Andulvar]

You seem to think that the Allosaurus would actually stay the size it was. Due to the scarcity of large prey animals it would shrink to make sure there would be enough food. Dinosaurs have done this in the past and have shown that it really doesn't take long.

[@spinosaurusstriker]

But the video is not about a evolved version of the allo, but the allo we know today.

[@bigmoe9856]

Depends. Remove humans from the mix and allow the ecosystem to be, there is a sizeable amount of prey for it.

[@Oinker-Sploinker]

@@bigmoe9856 with how abundant beached whales used to be and still are an allosaurus could do decently in a costal area.

[@sapphhere283]

​@Niggass1255Probably not now that I read ops comment. Dwarfism is extremely common among large creatures in areas with little food, and it doesn't take long at all. Allosaurus would probably shrink

[@VoltaireVoltaire-zq4zh]

yes, that's a normal evolution in predators, they adapt to the preys@@sapphhere283

[@znail4675]

The main problem for Dinosaurs in the modern age is that modern prey animals have adapted speed instead of size as main defense against predators. Scavenging from other predators rely on them allowing it to happen as it's quite likely that modern predators will learn to move elsewhere if they smell an Allosaurus being in the area and that would leave it to rely on itself for hunting again leading to eventual starvation. Taking on the larger and slower animals like Elephants and Rhinos comes with the real risk of injury making future hunts even harder, even if that fight is won. I think the big land crocodilians would fare better as they don't need to eat as often so could both survive longer on scavenging and need to successfully hunt less often. Pterosaurs being strategically mobile would also do well, even if the giant ones would suffer from us humans not liking things that puts us on the menu.

[@taranpreetsingh2347]

Ye theres a very big reason the most successful predators right now on land are canines and felids. They have speed and strength with very adapted ways of killing efficiently. Being big as a predator isn't really helpful anymore given theres nothing big enough for them to really take on easily.

[@trvth1s]

Your comment is ignorant of ancient fauna. There were always fast herbivores during the age of dinosaurs, that is not a new strategy. Gallalimimus, which lived along side Trex, could run over 65mph, and it was a theropoda so it could sustain that speed for far longer than any mammal in history thanks to its airsacs. Juvenile trex were extremely fast and explosive, they likely hunted these herbivores. Nocturnal predators like dakota raptor may have also hunted them. Most theropoda were stamina hunters thanks to their airsacs, but the giants were built to go after other giants. Trex is the result of giant theropoda hunting giant prey for tens of millions of years, there is no mammal equivalent, mammalian herbivores would be no match as they never had to deal with predators bigger than 1 ton in most cases. Hunting large prey was ALWAYS a risk, more so in the age of dinosaurs because the prey adapted not only size but armor and weaponry to deal with giant predators, like triceratops giant thick frill, giant horns, etc. Also, egg thieve mammals and snakes existed in the age of dinosaurs. It almost sounds like you think only the big dinosaurs existed in the cretaceous, the small animals were there as well

[@suze2398]

@@trvth1s Gallimimus was not cheetah level fast, all the most recent data-driven studies put Gallimimus at 30-40 mph max, about as fast as a modern lion at top speed. Very fast for a non-avian dinosaur, but nowhere near 65 fucking miles an hour. You're still stuck in the 90s, your view of dinos is outdated.

[@trvth1s]

@@suze2398 You're wrong. There is a recent peer reviewed study of La Rioja, Spain dinosaur tracks. Speed estimates for the clade go as high as 80mph

[@suze2398]

@@trvth1s that study was highly dubious cause the method used was highly questionable and not trusted by most scientist, the same method was used on footprints on ancient human tracks in Australia dated to 20k years ago, it produced an estimated of 30 mph. Now do you really think a fucking aboriginal from tens of thousands of years ago can outrun Usain Bolt?

[@adamtruong1759]

Allosaurus is definitely an interesting predator for the Savannah, it's a powerful animal while being more flexible than its megatherapod counterparts. As for other dinosaurs to introduce, Tyrannosaurus for doesn't have the speed to outright catch most of the prey items in the Savannah, but it does seem to be more of an endurance hunter. It also has a lot of soft factors like large eyes and padded feet. Still, it wouldn't have had the concealment it had in the swampy Hell Creek formation. Predators that intrests me more in this regard are carnivores like Ceratosaurus, Carnotaurous, Dilophosaurus, Azardarkids, or the moderate size Tyrannosaurs like Albertosaurus or Nanuqsaurus.

[@Sedimented.Studios]

definitely, while everyone want to think about tyrannosaurus being introduced into the modern day, it probably wouldn't have enough prey, and even african elephants would stand little chance against it, so it would be a pretty simple dynamic

[@craiggibbons8228]

Disagree. A T-Rex dumped in modern savannahs (with no human interferferance), would still die out pretty quickly. Most smaller mamals would prey on and destroy T-Rex eggs and decimate any future generation. Mamals, lizards, and birds would kill of the majority of and eggs, regardless of the number of eggs they lay. Any young T-Rex would also be fair game for many of today's predators. Pack animals would out number and kill any young offspring. Very few would ever reach maturity. And eventually would not be repopulate fast enough to sustain the species and would die of once again. Also you underestimate Elephants. Elephants are a lot smarter than dinosaurs, and 8f a female was attacked by a T-Rex or Allosaur the dominant male and younger males would charge it. And as dinosaurs are massive they have a greater surface area to get hit. An enraged Bull Elephants tusks can still puncture a dinosaurs hide. And seeing as it would only need to be stabbed a few times to bleed out and die it would not kill as much as you think it would.

[@trvth1s]

@@craiggibbons8228 I disagree with you completely. 1.Trex were theropoda, they likely took turns caring for eggs like modern birds that pair. Trex would also care for its young to some extent just like all archosaurs. Mammals wouldnt be given a chance to get the eggs. Ostrich lay eggs in Africa and plenty of mammal predators can outpower and kill their young, ostrich are ratites. Trex layed more eggs and no modern mammal would dare take its eggs, trex also had phenomenal eye sight and olfactory so no mammal could possibly sneak at night and take an egg. Also: trex cared for their young. Trex young also had a very fast growth spurt, by the time they were 2 tons in mass they were far deadlier than lions and just as agile, trex slowed down when they bulked later in life. 2. Elephants are small triceratops. Triceratops could reach a monstrous 13 tons in mass, they also had solid bone horns covered in keratin[ far more powerful than elephant tusk. Triceratops, with all of this astounding power and weaponry, still had to evolve a thick solid bone frill covered in keratin with sharpened edges in order to protect its neck from trex. Elephants wouldnt stand a chance. Triceratops were far bigger, far stronger than elephants and had far better biomechanical defenses, and they too were herd animals. If trex could handle triceratops [big target still] elephants would stand 0 chance. Elephants evolved to deal with 300lbs predators like lions, not 12 ton super predatory theropoda.

[@GORILLAPAZZO05]

​@@trvth1sTriceratops probably wouldnt protect another triceratops, they would Just get away asap to avoid injury, but elephants actually do protect eachother, thanks to their superior intelligence, so the best choice for T.rex would be to ambush solitary bull, which would still be pretty dangerous since and elephant tusk would be able to pierce T.rex's hide.

[@GORILLAPAZZO05]

​@@trvth1sAlso the largest Triceratops was around 8.5 Tons, so the average triceratops would Weight around 6 Tons, not THAT big of a difference in weight

[@kwnstudio1421]

Lions would do fine in this scenario since they rarely or almost never hunt adult rhinos, hippos and elephants. A giant predator like allosaurus would just hunt the big guys of the African continent while lion will continue to hunt their usual prey added with the allosaurus bullying from time to time🤔 Honestly it would be a balanced echo system and adult elephants can finally have something to fear for other then humans finely 😂

[@hugomas5207]

Un Allo no le asé ni mierda a un elefante adulto.

[@trvth1s]

Good point. Honestly, i believe rhinos would have the hardest time dealing with allosaurus. Rhino eye sight is poor, allosaurus could take them on at night, theid clinch on like an eagle but with their massive claws, and start bitting slicing flesh while the rhino struggles and eventually tires. Rhinos, like all large mammals, have a long gestation period, and the only thing they could maybe do is run away. Girraffes are a lot faster, hippos can get in the water, elephants can fight back but rhinos can MAYBE run away.

[@kwnstudio1421]

Yup, a two ton predator with razor blades for teeth that preys on tanks with spiked tails and 40+ton long necks is no match for a 7 tone elephant gotchia lol.@@hugomas5207

[@GeteMachine]

Lions also only hunt in the mid day or night, so there would be time if an Allosaurs hunted their prey when they slept. We know this, because Cheetahs tend to hunt at different times of day to avoid Lions.

[@V2_Coinshooter]

​@@hugomas5207literalmente cazaban diplodocus, que era mucho mas grandes que los elefantes

[@Eye_Exist]

Me: tonight i will go sleep early Also me at 2:15am:

[@Sedimented.Studios]

a good place to be

[@Man_0f_Trenches]

I feel like they would absolutely terrorize Nile Crocodiles. A full grown Nile can get up to 1700 pounds. Just imagine one sunning itself and getting ambushed before its slow ass could get into the water. It would be like Jaguars hunting caimans in South America.

[@taranpreetsingh2347]

Jaguars hunt caimans that are considerably smaller than itself. A fully grown Nile croc is still very large and has very strong armor and bite strength. Also predators don't generally take on animals where they can get hurt a lot. One bite to the allosaurus's leg and its over for it even if it kills the croc.

[@bluemutt9964]

​@@taranpreetsingh2347My money is still on the Allo. It would still dwarf the croc, even a full size one. And they have longer necks with more range of motion. A croc keeps it's back to the water to hide their tail, but an Allo could likely just reach around it and snag it up by the tail

[@johnevans8533]

Allosaurus lived during a time of higher oxygen levels in the air. If it was brought to the modern day environment, it would soon die of oxygen shortage, similar to altitude sickness.

[@rileyernst9086]

You're underrated the stealth of allosaurus. Elephants are notorious for appearing disappearing. They are extremely quiet, allosaurus like elephants had big padded feet. So it was probably a pretty stealthy boi.

[@Cryodrakon2]

Basically all dinosaurs had padded feet, because they kinda dont wanna die,

[@jessejarmon2100]

Another interesting idea would be to introduce Allosaurus fragilis to early Miocene South America where it would compete with the similarly sized Barinasuchus, I'd also suggest adding other non-avian dino species as well, such as Velociraptor and Deinonychus, ankylosaurs, hadrosaurs, and titanosaurs, that way you could basically recreate the Age of Dinosaurs in miniature in Miocene South America. These reintroduced dinos would not only impact Miocene South American ecosystems, but potentially have even wider impacts on the global climate as well due to the sudden influx of green house gas emissions they'd give off. Which could then in turn lead to so many more impacts across the globe. Honestly, it could make for an AWESOME spec-evo project/series, I'm actually a bit disappointed that no one has seemingly done this before.

[@jessejarmon2100]

Another interesting thing to explore in such a scenario is, assuming there is no localized mass extinction of South American fauna like in OTL, then you could explore the faunal interchange between North & South America in this ATL, you could explore how non-avian dinosaurs colonizing North America affect the mammal dominated ecosystems therein, and explore how the dinos evolve in turn as they colonize further north towards the arctic and the Bering Land Bridge and eventually begin colonizing Eurasia.

[@Sedimented.Studios]

thats honestly a great idea, given the timescale and amount of species and areas involved it'll be a larger project but definitely interesting

[@Sedimented.Studios]

You mentioned it would make a good spec-evo project and it definitely would, theres a spec evo project called "Tales of Kaimere" if you haven't heard of it that mixes dinosaur descendants and modern animals, although it takes place on another planet and has some "magical" shenanigans.

[@idle_speculation]

Miocene South America was already dominated by a bunch of predatory clades. Sparassodonts, phorusrhacids, and sebecids come to mind. Whether this would help or hinder them is the important question…

[@TheMightyN]

The _Allosaurus_ ranges in medium to large class at about 25-32ft long and stood taller than 9ft. But matched with many adaptations, it is a cardinal sin to accuse a single 1 to 3 ton theropod as incapable of killing an African Bush Elephant.

[@dinogoldie9716]

The documentary "Valley of Gwangi" showed us that an Allosaurus would easily pone an elephant then sit on a church organ before ultimately being burnt alive in that church.

[@df082399]

I also think that allosaurus chicks would struggle to grow into adults with the constant pressure from smaller mammalian carnivores as well as monitor lizards and pythons. Jackals, hyenas, leopards, and cheetahs could easily hunt and kill small chicks and easily outrun an angry allosaurus mother hence possibly keeping the population of allosaurus very small to only a few thousand. After a few million years you may see a trend where Allosaurus begins to speciate into being smaller so they can prey upon the more faster and agile mammalian herbivores kinda like how terror birds did filling the niche of the now extinct lions, and also having a species that is typically larger in size to better hunt elephants and other larger megafauna.

[@GabiteEditz]

Allosaurus lived in an environment with tons of other predators. The savannah today would be no different.

[@robertmartinjr.4537]

​@GabiteEditz it didn't live with the Tyrannosaurus Rex. By the time Rexxie came along big AL was long gone. If it did exist alongside the T Rex it would most likely adopted territory as not to go head to head with the Tyrannosaurus.

[@GabiteEditz]

@@robertmartinjr.4537 when tf did I say tyrannosaurus?

[@robertmartinjr.4537]

@@GabiteEditz can't even have a mature discussion. Online Buffoons start acting like they are somebody.

[@GabiteEditz]

@@robertmartinjr.4537 but I didn't mention the t rex. What are you babbling about?

[@frysause934]

It is hard to compare an allosauruses predatory capabilities against modern mammals by using weight. Allosauruses bones were hollow, making it much lighter than any mammal of similar size, but that does not reflect its muscle mass/strength ratio in comparison to weight. I think they would be much more lethal than most people realize.

[@baldieman64]

Especially with the increased Oxygen content of the modern atmosphere.

[@gamesguy]

Terror birds also had hollow bones and similar build as theropods, they were completely outcompeted by Mammalian predators and went extinct.

[@Vratty]

@@gamesguy Terror birds more likely died out by climate change, what you say is pure speculation and not a fact, most terrorbirds moved to North america too, also a lot of mammal predators went extinct in that time frame.

[@gamesguy]

@@Vratty There is no evidence of such mass dying in South America when the terror birds went extinct. The only major factor that changed was the introduction and rapidly expansion of large mammalian predators.

[@Vratty]

@@gamesguy They weren’t as efficient predators. They were. This is proven by the existence of Titanis. That bird evolved IN NORTH AMERICA, lived alongside placental carnivores until its extinction, and became the top predator in the Southern US after extinctions at the end of the Miocene wiped out animals like Amphimachairodus! Titanis did quite well! There’s actually a pattern in size here. Smilodon and Aenocyon species did not grow to larger sizes until the extinction of Titanis 1.8 mya, which implies that it was not the mammals that ruled the roost, but the bird instead. Also, no, Titanis did not “outcompete” these mammals either. It was simply lucky enough to be the first to diversify and fill the apex carnivore role. When carnivorans got to South America, they outcompeted them. Large terror birds were most likely extinct in South America by the GABI, though looking at Wikipedia’s page on Devincezia, the timeline had it surviving from 9-4 mya, from the Late Miocene to the Early Pliocene. But, it would be awesome if we could find fossil evidence of Devincezia surviving into the Pleistocene and coexisting with large carnivorans. But no, this animal was not outcompeted, due it being the last large South American terror bird, going extinct 1.5 million years before the GABI. The bird was driven extinct by climatic changes. (BTW all what i wrote here was copied by a reddit comment who explains in a good way better that i could do so, though if you want some more info i will gladly give.) www.theextinctions.com/articles-1/the-last-terror-birds-a-review-of-phorusrhacids-and-their-plio-pleistocene-occurences (Sadly there isnt much info about Terror bird extinction but if we know something is that they werent outcompeted like the majority said, climate change hit them hard.)

[@nickmitsialis]

I was thinking that a smaller allosaur would be better suited for living in Australia

[@krinklehinkle]

if the allosaurus saw the world today, he might even say that he has “never seen such bullsh* before”

[@wulfone5961]

This is a pretty interesting video. I wish there were more people making these kinds of videos where dinosaurs are brought into the modern world and the impacts it would have are brought up.

[@greaterdanemark2397]

Allosaurus has not seen such time travel before

[@Cillana]

Loved the video. Would have liked to see images like the one with the human for scale showing size comparison between allosaurus and the African mammals mentioned.

[@XR190190]

rats, birds, lizards seeing Allosaurus' nests: Hmmmm tasty!

[@squiddle5193]

You know, sad for the Lions, but someone needs to put those Hippos into their place.

[@aiperthatgotmutatedbytruth5638]

I agree

[@d53101]

It is likely that zoos would compete to have savanna Allosaurus captured to add to their collections.Thus some more pressure on their population.

[@hugomas5207]

Allosaurus: Ja, cuánto tiempo sin vernos. Elefantes: Recuerdas esa pelea que tuvimos en el circo ??? Pués ahora me toca mi revancha.

[@LunamPuer]

Allosaurus would be hunted to extinction by humans in modern day. Poachers and exotic hunters especially. He can bypass a fence, but can it bypass a .50 cal to the chest? Great video btw

[@petermaz701]

Regardless of the fact, that allosaurus would lay quite a few eggs they would be eaten by many. That’s providing food for many of the predators out there .

[@jessejarmon2100]

Nice! I would love to see more vids like this, like what if dromaeosaurs like Velociraptor or Deinonychus or Dakotaraptor (or even all three?) were introduced to modern day Eurasia? Or what if Sauropods were introduced into modern ecosystems? Or the reverse, introducing modern day animals into Mesozoic ecosystems?

[@Sedimented.Studios]

those are good ideas, also modern animals in the mesozoic? I wonder what the next video will be about👀

[@babaook-95]

if it's modern day as in present, They'd likely be hunted to extinction.

[@VictorianTimeTraveler]

People, especially nowadays really don't understand how stealthily theropods could move.

[@MeelisMatt]

you are right. imagine chiken/rooster leg anatomy with huge powerful reptile muscles.

[@VictorianTimeTraveler]

@@MeelisMatt They are so awesome

[@Dylan-Hooton]

Cool! I got a few ideas for future videos: 1. What if Ankylosaurus was brought to the modern day? 2. What if Edmontosaurus was brought to the modern day? 3. What if Parksosaurus was brought to the modern day? 4. What if Alamosaurus was brought to the modern day? 5. What if Amargasaurus was brought to the modern day? 6. What if Nigersaurus was brought to the modern day? 7. What if Coelophysis was brought to the modern day? 8. What if Carnotaurus was brought to the modern day? 9. What if Compsognathus was brought to the modern day? 10. What if Tyrannosaurus was brought to the modern day? 11. What if Therizinosaurus was brought to the modern day? 12. What if Mononykus was brought to the modern day? 13. What if Oviraptor was brought to the modern day? 14. What if Velociraptor was brought to the modern day? 15. What if Utahraptor was brought to the modern day? 16. What if Pectinodon was brought to the modern day? I hope you like these ideas. 😊

[@MR_stone69]

Not the nigasaurus

[@Dylan-Hooton]

@@MR_stone69 ( *Facepalms* ) No, not that, Nigersaurus (meaning "lizard from the country of Niger").

[@lukeskywalkerjediknight2.013]

@@MR_stone69you hate African dinosaurs as well?🙉

[@MR_stone69]

@@lukeskywalkerjediknight2.013 its a little too specific

[@chpet1655]

Allosaurus would be a new food source for humans. Allo-wings in BBQ sauce, allo-burgers, allosaurus stew yummmm

[@leechmiller1072]

Allosaurus has always been one of my favourites, it not being huge (by predatory theropod standards) makes it interesting in how it would hunt and generally operate.

[@ShamanKish]

Elephants would make short work of al.

[@Ernellielabanlang]

@Sedeminted Studios how about a carnotosaurus?

[@dragonboytsubasa]

I reckon Allos would eventually adapt to hunt buffaloes to survive as a population because they're far more numerous than giraffes, hippos, rhinos and elephants, all of which could give the Allo a hard time.

[@Axeiaa]

Rhinos... sadly due to humans would be lacking defensively. Their horns are either already cut off or have shrunk a lot thanks to humans hunting them for it. Their terrible eye sight could lead them to be a pretty good prey item. Hippos might have to change their tune a bit, their notoriously aggressive territorial behavior could really backfire if they decide to go after an Allosaurus. Giraffes would just bolt on out of there and should be fine mostly. Elephants would be the most interesting to see how they handle things. They are mighty intelligent after all, if male bull elephants are suddenly on the menu table of something do they start forming mini groups themselves for safety? Similar to Rhinos their tusks have been shrinking a lot in recent years as well due to the most impressive 'tuskers' being targeted by hunters and poachers so defensively they'll be lacking a bit. Can an Allosaurus deal with a herd of Elephants or would they just opt to go for easier prey like water buffalos?

[@hugomas5207]

​@@AxeiaaNah. Las jirafas escaparían de el. Los elefantes son el doble de grande que el y no les hará falta sus colmillos pará partirle la madre. Los Hipopotamos son principalmente acuáticos y por ende no tendrían tantos problemas y ojo que aún así podrían defenderse fácilmente gracias a su piel dura y enormes mandíbulas. Y con el rinoceronte la verdad sería extraño y alavés el más curioso.

[@lsdave42]

"Allosaurus had never seen such bullshit before"

[@spinosaurusstriker]

I like your calm voice while also using facts and logic to talk about these hypothetical escenarios, keep it clean dude. Also do ceratosaurus nexts.

[@sparklestonebro]

Its ai

[@arthurdirindinjr1792]

Nothing a 700 Nito Express couldn't handle quite nicely thank you very much.

[@finnbob8404]

Interesting video would like to see more of these.

[@Sedimented.Studios]

thank you

[@SonLucasX]

It would be great to make a video about the impact of modern mammals during the Mesozoic, in my opinion, the carnivorous order, be it felids, canids, mustelids, etc. would do very well during the Cenozoic, especially in the Triassic and Jurassic, where there was still no as many giants as in the Cretaceous, they would do tremendous damage, dominating niches of small animals. Rodents would do very well too, Cetaceans could perhaps do well, and primates could also adapt well to the Cretaceous, because there were already fruits, not in the same diversity, but I think it could support primate species.

[@BUCK_23CHAD]

Don’t forget that allosaurus have a bite force of a gray wolf or lion, they may also have been sized reduced in the modern times, so it could have been less damaging to the African ecosystems, we may also have African allosaurus already, more research needed for this possibility tho.

[@deadtake2664]

Thats been debunked, its bite was actually much stronger at around 3000-3500 psi, closer to an Alligator than the 650 psi bite of a lion

[@BUCK_23CHAD]

@@deadtake2664 alright ty for the information.

[@trvth1s]

@@BUCK_23CHAD On top of that: allosaurus didnt rely on its bite to hunt, it used its giant claws to pincer down its prey like eagles, and while the large animal struggles itll eat them alive with their slicing teeth leading to massive blood loss and death. Also, i am not sure why you think allosaurus size would be reduced.

[@JoaoFerreira-iv1ro]

A recent study from 2022 estimates allosaurus bite force at around 4400 newtons at the anterior part of the jaws and about 9389 at the posterior part of the jaws which i think is about twice the bite force of a tiger if i remember correctly. So no, allo didnt have a bite force weaker than a lion and adding the serrated teeth and we get a deadly predator.

[@helios2664]

@@deadtake2664 Like the outdated Allosaurs bite force, the 650 psi bite force for Lions is also inaccurate. That was a juvenile that was measured, adult Lion's bite force should be closer to that of a Tiger, around 1050 psi.

[@bluemutt9964]

The visual of an Allo hunting crocs by snatching them up in the air by the tail as they turn for the water is really funny

[@kingdon7795]

I think an allosaurus would be a very good and sweet pet 😊

[@Sedimented.Studios]

maybe, when it tries to eat you it may sour a bit

[@kingdon7795]

@@Sedimented.Studios I don't know. I would kiss it on the cheek 😁

[@Sedimented.Studios]

@@kingdon7795 i would wish you all the luck with that, would be sick if you succeeded

[@kingdon7795]

@@Sedimented.Studios 😜

[@mivili8096]

It would be devastating for a lion to see it's pride massacred by a allosaurus

[@ZombieChicken1310]

I just had the visual image of an Allosaurus biting and tearing off an elephant's trunk...

[@GORILLAPAZZO05]

Not happening unless it's a young Elephant, It would be unwise to go After the adults

[@punditgi]

Excellent video! Many thanks for this one. One small request: please add metric to your numeric data. Thank you so much. 😊

[@barrybarlowe5640]

At issue is egg laying and sub adult care. Some indications were that dinosaurs incubation period was much longer than comparably sized modern birds. Also, 2 tons is max size not average size. Average size would be about twice lion-sized. Young allosaurs would be as liable to predation as monitor lizards. The eggs would attract numerous nest raiders - unless allosaurs had nest - sitting habits, there might not be allosaurs to survive to continue. Human interaction would be swift and lethal. Crocodiles get away with their depredation because it's restricted to rivers and lakes. Allosaurs would have a higher metabolism., eating more often. I somehow feel they would treat humans as part of the food chain, even more than other mammals do. Also, oxygen levels in the atmosphere were higher in the Jurassic, than in modern times. This would affect their size. And ability to hunt - like a sea level sprinter suddenly dealing with Denver altitude air density. Extreme exertion would suffocate them. If they adapted, your 2ton carnosaur might, in a few generations top out about lion-sized.

[@levonleban6252]

The Mesozoic had plenty of egg thieves so I doubt that would single-handedly end the species. Also 2 tons is not a maximum size, we’ve found serval individuals larger.

[@fabricreative1930]

Actually, as far as I know, the Jurassic had similar oxygen levels to today, so that wouldn't be a problem.

[@spinosaurusstriker]

Ignoring the fact that dinos can process oxigen better than mammals, the oxigen wasn't that different.

[@SYMBIOTEDINOSAUR]

Extremely interesting topic you should definitely make more on if certain dinosaurs had to survive in modern ecosystems.

[@wpower7435]

I have a video idea if you want to make what if Carcharodontosaurus and Sarcosuchus were still around today in Africa? All mega fauna will freak out especially rhinoceros elephants and hippopotamus

[@dinkleberg684]

A video on Dilophosaurus or similar sized theropod for Pleistocene Australia would be interesting to theroize about due to being closer in size range to the marsupials and reptiles of that time

[@deplorabledegenerate2630]

It would effect big cats, and lions the most, but it wouldn't be as bad for them as you're saying. A young allosaurus would make for tempting prey especially for leopards who can kill large silverbacks. Just depends on when mama al stops acting as a guardian.

[@ronaldmessina4229]

I loved the movie about the life of the Allosaurus, I just really wish that I could have lived when they lived, no matter what would happen,,and I am very sad 😞 that the asteroid hit the earth 🌎 and caused the destruction of all life forms, except for very small animals,,The movie was entitled Big Al

[@aiperthatgotmutatedbytruth5638]

Allosaurus being prey to leopards, now that's a good joke i have heard Bro incase you forgot they are predators with thich Armour and jagged teeth One bite and it's over for the squishy mammals.

[@deplorabledegenerate2630]

@@aiperthatgotmutatedbytruth5638 tell me how thich they Armour is culd teh kats jagged teeths get thru?

[@TheXAllosaurus]

​@@aiperthatgotmutatedbytruth5638Did you missed the word "young" here? Obviously leopard is no match for the fully matured Allosaurus but the hatchling and juvenile are still susceptible to predation from Leopards

[@hugomas5207]

Todo bien esta que dijiste lo de espalda plateada. Los leopardos no los cazan. Sólo los atacan en sus nidos y a la especie occidental.

[@evancombs5159]

The size of allosaurus would be its biggest detriment in the savanna. They would be too easy to spot, making them easy to avoid. They would have to take a more endurance based approach to hunting (similar to wild dogs or wolfs) instead of the typical cat ambush hunting style. Even then, they likely would still struggle for that same reason.

[@trvth1s]

I am certain their size was also an issue during their time, it made them easy to spot. Yet they survived even though the megafauna of the time were dinosaurs with unilateral respiratory system and airsacs which are 2.5x more efficient than mammal lungs. They still hunted thrived. We dont know quite how. They may have hunted at night, or as you mentioned they may have made use of their phenomenal stamina, which btw is far superior to any mammals thanks to allosaurus having airsacs. They may have chased prey until exaustion

[@kpaw1019]

A .416 Rigby should drop an Allosaurus with no problem. Safaris become big business again.

[@arcosprey4811]

I LOVE these “animals in the wrong environments” please do more. How about a gorgonopsid in modern day or a lion in its place?

[@colinrogers9896]

i could see crocodiles and alligators being a major threat to younger allosaurs, to a point where crocodiles like the Nile Crocodile might have even seen young allosaurs as a reliable food source

[@PlainsPup]

Any of these mesothermic Mesozoic megafauna would freeze to death in short order, even in parts of the tropics, which are still relatively cold here in the Cenozoic. There’s a reason endothermic mammals and birds dominate in this era.

[@dinoscarex4550]

The issue I see with Allosaurus living in the african savannah is that most of the potential prey does not grow as fast or in high quantities as most sauropods or other large dinosaurs. After a while allosaurs might have to oftenly go for antelopes instead.

[@santyclause8034]

If this thing laid eggs it just expected to hatch unmolested, while it went its merry way...

[@thedragonthatlovesskittles7132]

This would be terrifying

[@theoverseer393]

I imagine as the years passed they’d actually get slightly smaller if their prey got smaller too. That being said, I don’t remember where it said how many eggs they normally laid, but given their size, I imagine they would at least lay 2 eggs or more

[@tommis1985]

"Giraffes don't possess the jaws of Allosaurus" ...

[@zobblewobble1770]

I don’t know what effect the Allosaurus would have in Africa, but I’m gonna bet that the Honey Badgers will still try to fight it.

[@SternaRegnixTube]

XD

[@mikeholt1248]

I normally don’t like the “what ifs” since they are mostly fantasies but the narrator’s logical expertise/explanation makes perfect sense re: apex prehistoric predator suddenly roaming the Savannah. I found this video very interesting! PS: For Part II he should drop a few hundred politicians onto these grasslands…now THAT would be entertaining!

[@phatmusic]

I doubt there is anything that ever existed that could pose a threat to a heard of grpwn elephants. Their size and power and numbers are unmatched

[@trvth1s]

Several ornithischians were far larger, far mower powerful and had larger herds than elephants. Ornithopods had massive herds. If 300lbs lions could take down elephants, i am certain 2 ton superopredators would make easy work for them

[@johnishikawa2200]

Allosaurus , Tyrannosaurus , and all of those big slow predators would have been no match for an experienced big game hunter armed with a 0.416 Rigby sporting rifle . I imagine that Allosaurus was very similar to a modern Komodo Dragon in it's demeanor - a big , slow , stupid , gloating brute .

[@LordBathtub]

Text to speexh voice is killing me, they make these videos so passionless

[@disneydino7558]

Your video inspired me to do a video in which I bring a PSNO Allosaurus toy to Six Flags Safari in New Jersey and have him react to the wildlife there. Filming begins this spring.

[@rimasmuliolis1136]

The oxygen content of the Jurassic atmosphere was about a third more than of our air today. If not contained in a modified environment it would just pass out with a headache and die.

[@WEAREALLJUSTMEAT]

To be a party pooper you could really just say it dies of asphyxiation cause there's not enough oxygen in the atmosphere anymore

[@alanburns2815]

They would have trouble breathing as we would in their heyday as the atmosphere was completely different then so they would not probably survive.

[@hfdennycheng9010]

IN OUR OWN COUNTRY, THERE WERE ALSO LVING ALLOSAURUS. WE ARE CHINESE. IN CHINA, WE CALL ALLOSAURUS（NORTH AMERICA）ARE 異特龍（UNUSUAL DRAGON）AND THE CHINESE ALLOSAURUS ARE 永川龍（永川 DRAGON）AND 永川 IS THE PLACE WHERE FIRSTLY FOUND THE BONE FOSSILS WE USE THE COMMON CHINESE CHARACTERS TO RENAME THE DINOSAURS AND OTHERS PREHISTORIC ANIMALS IN ORDER TO LET THE COMMON CHINESE PEOPLE CAN UNDERSTAND THE MEANING OF THE PREHISTORIC ANIMALS EASILY. WE DO NOT USE THE ANCIENT GREEK AND LATIN SINCE WE DO NOT KNOW

[@abhimanyusingh5726]

Now introduce packs of velociraptor(scientifically accurate) to modern day Africa.

[@cmdrTremyss]

feet? pounds? any measurements not in freedom units pls?

[@allancastellon9248]

I read the title snd immediately thought "Welp Lions are going extinct"

[@AmatureAstronomer]

This fellow left out one predator. Elmer Fudd armed with a Holland and Holland 70 caliber nitro special rifle. Humans would quickly extinct the species.

[@mikearmstrong8483]

"Allosaurus had never seen such bullshit before."

[@zoiranha]

My boy lion now lives as a ceratosaurus.

[@DavidEllis-l1k]

O2 atmosphere content?

[@tkelly5422]

Feels like a high-school science paper. Id give an A.

[@ramoth777]

'The Valley of Gwangi' comes to mind...

[@haroldkane9714]

The size estimate of the women against the allosaurus had a nice figure

[@tsunagwyn2328]

Allosaurus has never seen such animals before

[@trvth1s]

Allosaurus saw herbivores and carnivores that were far more dangerous than todays mammals

[@willichtenstein7071]

@@trvth1s Have you heard of Darth Hippopotomus the river king? It is not a tale the Theropods would tell you.

[@Raptor_Ren]

I’m curious how Allosaurus would do introduced into the modern day Morrison formation, where they used to live.

[@babaook-95]

Sadly i think it would be up to the humans on whether or not the allos survive, Humanity overcomes literally any predator and an allo would be a walk in the park for us.

[@BrianBadondeBo]

I mean, they probably wouldn't be able to breathe, their air was wayyyyy more oxygen rich

[@BrentODell]

I think the issue with allosaurs attacking a herd of elephants is that the elephants wouldn't panic. They aren't used to running from anything, which means you can't separate the herd, the way modern predators do against other large animals(lions, wolves, etc.). The allosaurs would, I think, treat elephants the way lions treat adult giraffes: only hunted in extreme circumstances, and rarely successfully.

[@4zafinc]

One of my favourite what if series idea. I'm interested in how would Nanuqsaurus fare in today's arctic conditions. Competing with polar bears, managing preys etc etc

[@Sedimented.Studios]

great idea

[@thomaslaw9764]

In 500 years time some guys are gonna do this...I wish I could see this.

[@walterfechter8080]

This video brings to my mind the film, "Valley of Gwangi." Without a doubt, Allosaurus would be the apex predator on the African savannah. Thank you, Sedimented Studios.

[@fblack9033]

My favorite dinosaur of all time would have an absolute field day in the savannah. And I would be cheering them on while I sit on the sidelines. Hey, this is cool - one of them is coming up to me right n-

[@Arthur-hw1yj]

As a single species of dinosaur getting reintroduced I think it would struggle just as much as every animal that lives on earth with husmans

[@davidgriffiths7696]

They might be considered as farm animals, and could be factory farmed in large steel cages like chickens, a few hundred in each shed, especially if they are prolific layers, and fed on bagged insect protein grown using the dung. One animal could be worth about 5000 euro once processed into burgers and steaks. Probably they taste like chicken. It might be somewhat effective as a draught animal, for powering mine equipment in inaccessible locations. It would be a great candidate for genetic modification. Trying to defeat elephants would soon be the least of its problems.

[@Haroldclifford-i1u]

I could imagine it would also be a problem to us by hunting cattle as well as peoples pets like cats and dogs, not to mention us

[@jasonkaczynski8218]

You forgot one very important thing that would happen of they were brought back, I would die trying to pet it.

[@commodoor6549]

They'd be hunted to extinction within one year unless we protected them.

[@andrewshaughnessy5828]

Al O'Saurus, my favourite Irish dinosaur! Seriously, I've always had a fondness for the Jurassic beasties. I can certainly see this one as a savannah predator, especially operating in packs.