Could Modern Mammals survive in the Mesozoic P.2?
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- Опубліковано 24 лип 2024
- #animals #evolution #paleontology #anthropology #cretaceous #dinosaur #beavers #mesozoic #badgers #seal
What mammals of the modern day could survive in the Mesozoic (part 2).
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Animals that are active primarily at night may have very week *color* vision, but much stronger *contrast* vision than diurnal creatures. The cone cells that enable color vision would be lower in number, probably *much* lower, than would be the case for diurnal creatures, but the rod cells that make for night vision and the detection of contrasts during the day would likely be much higher in number than in diurnal animals.
Honey Badger: Nah I'd win
Honey Badger: Stand proud dinosaurs you are strong
And when it evolves into a giant bear like creature: "From Heaven to Earth I alone am the honored one."
Skunks would definitely do well with the dinosaurs, thanks to their defensive spray. A lot of dinosaurs have very powerful senses of smell and that would be a handicap for hunting skunks. And even if they didn't have a strong sense of the smell, a spray to the eyes would be even more dangerous (as experienced by birds-of-prey, the only group of animals that hunt skunks close to regularly).
I didn't think about skunks, i think you're right they could probably do pretty well
Technically the beaver niche was present in the Jurassic as were those of badgers and weasels. Check out Repenomamus and Castorocauda lutrasimilis. Beavers other rodents and weasels would probably do just fine especially skunks, martins, stoats , rats and porcupines and marmots. They could all also just settle down in colder regions where smaller predators who would threaten them would perhaps be more common.
i'm so happy you did this concept
I Definitely have more on the way
@@Sedimented.Studios nice!
Could modern pronghorn survive during the mesozoic? They could out run most dinosaurs
Let's be real pronghorns would humiliate every prehistoric animal lol.
@@anfunifr3nzy610 agreed but they would stick to open grasslands which could be a disadvantage as grass wasent very common during the mesozoic
What about white tail deer?
@@____________838 they would probably be out competed as they did not run as fast and didnt have as much stamina
They would be in direct competition with ornithomimosaurs which could reach the same speed and run for hours. Eudomaeosaurids like Dakotaraptor Steini could run at speeds close to Pronghorn and have more stamina than them. It really depends on the habitat. The best place for Pronghorns in terms of food would be the hell creek, but there they would be in competition with fast running Caenagnathid Oviraptorsaurs and Ornithomimids whilst being in heavy predation from juvenile/sub-adult Tyrannosaurus Rex and Dakotaraptor Steini.
Thanks to you, I learned today that crocodilians (with their specific heart and semi-cold metabolism) have the same one-way respiratory system than birds, and that all archausaurs have it.
Seems turtles and other non-archausaur synapsids do not have it, so I guess it really define archausaurs, right? Fascinatining, as for me it's a clear disadvantage of mammals compared to archausaurs, something to keep in mind to avoid the root-for-team mammal we naturally have ;-)
"Seems turtles and other non-archausaur synapsids"
I think you mean turtles and other non-archosaur diapsids. Not one single synapsid is an archosaur, so the term 'non-archosar synapsid' sounds odd.
"Fascinatining, as for me it's a clear disadvantage of mammals compared to archausaurs, something to keep in mind to avoid the root-for-team mammal we naturally have ;-)"
Mammals, and possibly our cynodont precursors, found alternate ways to process oxygen. All mammals possess red blood cells shaped like biconcave disks; this allows the cells to carry more oxygen than the blood cells found in other tetrapods. So I will never avoid rooting for the team.
@@MrColuber right, diapsids, my bad. Blood cells is interesting, I did not know about it. Seems not to work as well as archausaur counterflow exchange though (bird do high power flight at height where no mammal could do the same, or maybe even survive for long, and it's better distributed (many holes including bones, instead of giant lungs)... However it may be better for long diving. This would explain why aquatic mammals seem to be more diverse than purely aquatic birds... And marine reptiles were mostly not archausaurs, right?
palaeoloxodon high chances of survive even take down big carnivore dinosaur
It’s basically like a sauropod sized triceratops with high intelligence, it’d probably do well but their major issue would be reproduction being so slow, so for them to survive they’d probably have to adapt so males and females both live together in larger herds to make sure as many young as possible actually make it to adulthood. This would make their chances of survival as a species much higher, an adult bull Paleoloxodon would basically be an insurmountable threat for all but the absolute largest theropods and even then it’d be very dangerous for the theropod as they could easily be injured .
If you make a sequel video, I'd love to here about how some primates would survive. Especially the more arboreal ones. That and bats would be cool to here about
you should check out my first video on the topic, i talk about primates there, but I think they would have a good chance
I think Coyotes could do well in the Mesozoic.
They’re super adaptable so yeah
Any modern generalist without severe climate incompitabilty would probably do amazing and radiate into entire new families while commiting a localized mass extinction.
Love your channel
Thank you
badgers and other mustelids might find success stealing eggs from dinosaur nests. digging claws, nocturnal adaptations, squirminess, and boldness would all make them well suited to sneaking into nests and grabbing nutritious eggs.
definitely they might be able to find a niche there, they would have to outcompete the egg-eaters of the time
I thought the same thing. Weasels are famous for stealing bird eggs and hatchlings, and since the vast majority of animals in those time periods were egg laying, they'd have plenty to choose from. Also, if they stuck to a nocturnal lifestyle, they'd have little to fear from competition with egg eating dinosaurs.
I feel like Tigers and Leopards might be able last. Also Kangaroos.
Kangaroos are definitely interesting, I’ll have to think about that
One factor that is hard to account for is intelligence, a trait that arguably has allowed mammals to be so successful today. Would the luxury of having millions of years to develop mammalian brains be an advantage beck then?
Not as much,your lack of faith in dinosaurian brains disturbs me
@@eybaza6018 Mammal brains are superior to non-avian dinosaur brains
@@eybaza6018 what do you mean lack of faith? From what we can tell non avian dinosaurs were not particularly intelligent compared to mammals or birds who are on average more intelligent, at least in the manners we typically describe intelligence.
Actually, for me, most of medium sized mammals, like seals, goats, and horses may find a good niche to occupy without many predators. Like in Jurassic, seals may thrive, cause most plesiosaurs wouldn't be able to hunt them, horses would simply outrun most predators like Ceratosaurus or Allosaurus ect. Only big ones may struggle, cause of the existence of the actual predator specialized to hunt big animals. But still, rhinos, hippos or elephants would fight back really well. So, most mammals would do well in Jurassic or Early Createcous
Mustelids would definitely thrive in the Mesozoic.
And small rodents
My ears perked up at the mention of unidirectional respiratory systems, but then with no explanation, I was slightly deflated.
I know how it works in birds so I'll explain that. It should be the same in dinosaurs.
Mammals alternate between breathing in and out. Only when breathing in does oxygen-rich air move through the lungs. When breathing out the oxygen-poor air leaves the lungs through the same path it came from, meaning no oxygen is being supplied to the blood at this time.
When birds breathe in, the inflowing air is split to two paths. Part of the air goes through the lungs supplying the blood with oxygen, and part fills air sacs. When the bird breathes out the oxygen-poor air that went through the lungs flows out through a different path than it came from, making space for the oxygen-rich air that was stored in the air sacs to flow through the lungs. As a result birds get oxygen-rich air in their lungs both when breathing in and when breathing out.
@@hajoeijgenraam295 mind blown. I’m going to have to look into this!
nice
Thank you
your welcome@@Sedimented.Studios
I think some could definitely carve their own niches, like toothed whales and seals I could definitely see being quite successful due to their high intelligence. On the land I think a lot of herbivorous land mammals could do fine in open grassland habitats, like pronghorn, wildebeest, equines, etc. just because they’ve evolved to deal with fast, agile ambush predators, which would be pretty rare in the Mesozoic especially ones that could even catch up to the speed of something like a horse or pronghorn. Also smaller mammals like rodents would likely do well.
I talked about whales in my first video on this topic and i agree, maybe land herbivores could do well, but they would have a lot of hurdles
Rodents will definitely survive just fine. Especially the porcupines.
Yea rodents would do very well I expect
@@Dell-ol6hb Their strength is reproduction. See also cats for this strength.
seals could be eaten by larger pterosaurs.
Wolverines would probably square up to mega theropods
they would, but it would end badly for them
These comparison videos where animals are sent back in time, they miss the cognitive developments. Cretaceous dino's would likely have behavioural advantages compared to jurassic ones, which in turn would be less dumb than the triassic species. There was an increase in cerebellar neurons of birds and probably non-avian paravian dinosaurs through the mesozoic, when evolution rewarded higher predictive power in a lineage. The further back we go, we can expect a slow Idiocracy effect, with the earliest animals watching Ouch My Balls on a regular basis. Not that I'm different, but I'm not the one time-travelling here.
In this video the ichtyosaurs are said to be "especially dangerous", but they in fact went and extincted themselves way ahead of the asteroid curfuffle 66 mya. We don't know why. Could be pathogens, dwindling niches, dropping oxygen levels or climate change. But notably beginning in the cretaceous we see increased competition from mosasaurs and sharks. Prehistoric sharks really came into their own during the middle Cretaceous period and it's not a stretch to draw a connection. Seals survive modern (more dangerous) sharks just fine today.
What kind of loaded question if that!geesh have a little compassion!
Hell no they wouldn't.
But each time periods sect is made to get a fair set of odds for its periods.😁😎🏴☠️🥸