Animals that you are glad no longer exist

Oh, Im glad about there not being those giant fish from the times of the dinosaurs, like the shonisaurus, but he's cute. :)

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>>2291136

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>>2291149
>Shonisaurus
>fish

>>2291136
I would love to see a pond of killer whale absolutely wreck the shit out of megalodons like in the goold old days

>>2291280
>pond of killer whale
Sea World plz

>>2291280
just great whites could do that

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Haast eagle

>>2291371
U dum as fuk

>>2291136
Humans.

Fuckin pandas

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>>2291136

>>2291136
Why have animals gotten smaller throughout prehistory and history?

>>2292163
Part of it is the current stage we're in right now. Normally, every continent on Earth had megafauna, but after the last glacial maximum eded so quickly, it drove all the largest animals with the exception of Africa and Asia, extinct. We're now in an intermediate time when the ecological niches left open should have other animals evolving into them, but the unprecedented rise of humans has restricted migration routes and the diversity required for any evolution to occur.

>>2292163
Blue whale is the largest animal ever on earth (that we know of anyway) and theres still a few around

>>2292030
>there are people from the future posting, in this thread

Animals today are fucking boring

>>2292180

Man, of all the many bizarre pre-historic creatures that existed, this is the one that messes with my head the most. Giant animals already trip me out to begin with, but ones that can FLY are just too far beyond my comprehension.

>>2292168
Less food resources because greater diversity, less atmospheric oxygen to drive large muscles, no large prey animals anymore means smaller predators and less global forests equals less food sources, meaning bodies needed to scale down if they were going to survive.

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>>2292423
oops, meant for >>2292163.

>>2292229
Straya cunt.

>>2292157
Noo I like him

>>2292423
The less oxygen is a meme and needs to die. There were several points during the mesozoic when atmospheric O2 was less than it was today.

>>2292448
>30 ft. long predatory fish that lives in ponds
no thanks

>>2292488
Hmm, while I can't find any modern articles that support the oxygen theory (latest was 2013) I can't find much to debunk it either. Citation?

>>2292024

As if baboons needed to be worse...

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>>2292493
You can't find much because the oxygen= bigger animals was never a scientific theory. The meme originated with insects, because more oxygen= bigger insects IS a scientifically proven fact.

>>2292163
Could it be the lower oxygen content of the air?

>>2292980
no see>>2292872
and>>2292488

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There are no fossil records obviously, but given how large predatory animals got, I bet huge prehistoric parasites existed.

I'm glad that fictional large ass parasites are no longer a thing

>>2293079
>huge prehistoric parasites existed.

Not really, there's a certain limit to how large microscopic life can grow. Most of what infected dinosaurs seems to be what infects us today, things like helminths, tapeworms, pinworms, trichomona sp (which still impact birds to this today).

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>we require more minerals

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I just can't imagine..

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Don't want a venomous dog-reptile lurking around

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>>2291136

>>2292229
Aquard.

>>2293474
You know those would be yummy.

>>2292024
that thing will rape you and everyone you hold dear

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>>2291375

imagine using that mofo for falconry.

> imma hunt some horses today

>>2292163
If we are speaking of ancient animals then the continents were more conjoined, and less isolated. You had gigantic super oceans and super continents so insular dwarfism did influence the eventual shrinking of all species on Earth once these landmasses and oceans were broken up, and land forms that could isolate species developed. There is insular gigantism, but this is really rare. It only occurs if their are no predators to affect the species. The other thing that would influence mammals in increasing temperatures. Warm temperatures make thermoregulation in larger animals a lot more difficult. Their size was beneficial in an ice age climate, but as the weather warmed, it became harder and demanded more energy to achieve homeostasis in your warm blooded animals. We assume dinosaurs were warm blooded, but really we aren't sure. We have the definitions of cold and warm blooded, but dinosaurs may have been neither. Also, during the dinosaur's time, the weather was extremely warm so most plant species grew all year long. There were no winters so there was no need to prepare for winter. Not only that, but plants in the ancient days were gigantic and not very comparable to the plants we have now. (You couldn't go out and find an apple or flower, lots of coniferous shit and simple, but giant, plants.) Excess food supports large species. There's also the theory which involves the fact all but 2% of bees almost went extinct once in the past. This extinction of bees does happen shortly before a mass extinction of many known megafauna/flora. There's also humans. This plays in with all the other things going on because the larger the mammal, the more slowly it breeds and the less large the litter. This plays into gigantism only occurring on islands if no predators exist. The quicker an animal can breed, the more likely its survival when predators are eating it. Larger animals may die before they can produce enough offspring to replenish its numbers. I hope that helps.

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>all these pictures of ancient mega animals in metric

Straight white men

>>2293474
I thought this only ate plant life?

>>2292163
Big animals aren't energetically efficient.

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>>2292415
Anything with wings can fly if it goes fast enough or is lightweight enough

In the case of flying animals it's obviously the latter

>>2293474
Arthropleura, the ancestor of the modern centipedes and millipedes

>>2294745
>Implying metric isn't objectively the best measurement system

>>2294978
>not measuring ancient, outdated and obsolete creatures in an ancient, outdated and obsolete measurement system

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>>2294930
Animalets, when will they ever learn?

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>>2292024

>>2293534
I'm certain they would stink like ass

>>2292098
You fucking souless son of the great whore

>>2291136
>being glad any animal ceased to exist
>>2292163
from what I understand, in the Jurassic there was much more oxygen concentration in the air wich lead to bigger animals and insects.

>>2295436
More oxygen in the atmosphere only making things bigger only applies to insects, due to the way they breath. They do not have lungs and have to absorb it through tiny airways in the exoskeleton, more oxygen means bigger insects. During the times of giant insects, before reptiles had evolved there was a high enough oxygen content that the air could combust, leading to wildfires in rainforests.

>>2294793
Who's gonna feed and protect you?

Why did prehistoric animals look so much scarier and deadlier than modern animals look now?

>>2295439
Not only that, but there was actually less oxygen in the air during the Jurassic.

>>2295448
because our scary animals are covered in fur.

>>2292024
psshhh, I could 1v1 that faggot

>>2295439
>enough oxygen that air could combust
Got a citation on that..? I've taken several geo courses at uni and I've never heard of such a thing happening because of oxygen level.

>>2295646
and lose

>>2292180

I'm sure it could fuck me up, but that thing just looks goofy.

>>2291375
I wish it waa still alive. There aren't enough animals that can kill humans.

>>2295673
Yeah, I'm not too sure about this one either, just added it because it's cool. It's from a half remembered line from Walking with monsters(?). The one that took place before the dinosaurs.

>>2293464

Pretty sure I killed one of those in Fallout. All of them.

>>2295733
I see were your loyalties lies

>>2294931
Do you think fragility was a flaw with these giant flying beasts? Like landing hard or bumping into things fucking them up? Any evidence of disability in them?

>>2292024
Fucking werewolves.

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giant sloths

>>2293474
I imagine a person could lay down on one and just be carried through a jungle. Pretty comfy imho.

>>2291136
Motherfucking Helicoprion.
Fuck that shit.

>>2296044
How slow?

>>2296044
Prehistoric humans hunted them to extinction with spears and stones. I doubt they'd pose a significant threat if they still existed.

>>2296116
>Prehistoric Humans
>Doing anything other than barely survivng

Let the meme die

>>2292024
Fuck everything about this.

>>2293474
the centipede-eating-a-gecko.gif comes to mind

any fucking dinosaur

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>>2291157
>Basliosaurus
>Reptile

>>2292163
Because the big ones keep dying off.
Tell the asteroids and early human hunters to leave the megafauna alone

>>2296000
fuck you human lover

>>2292423
>le less pxygen meme

HMMMMMMMMMM ever notice how the bible says there were behemoths before the flood? and alot of the animals that ya'll are showing are just super sized animals we have today? Pretty wierd...

>>2296358
prehistoric humans were apex predators
if humans and dinosaurs existed at the same time, trex would have been fucked

>>2291725
>there would be herp keepers that would try to keep titanboas and post abt them here on /an/

>>2297910
>fuck you human lover
I'll savour those words when I cage you with one of the extinct

>>2297978
From what I know its not something that's alluded to like twice. You'd think if you had 10 ton lizards running about you might center your fiction around that.

I can't wait till humans die out

>>2298821
(you)

>>2291136
>>2291150
>>2292157
Harpoon
>>2291375
>>2291725
>>2292024
>>2292180
>>2293464
>>2293474
>>2296044
Bow/spear/traps

All of these guys would end up getting instinct by means of men.

>>2296683
Arthropleura was a millipede, and therefore herbivorous.

>>2296044
I fuckin hate regular sloths. I'd dedicate my life to destroying these things if they stilll existed.

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>>2299228
>>I fuckin hate regular sloths.
But why?

>>2299290
For a split second, I thought it was so slow that it dried half way into the ground with the cement.

Man, that thing's short

MEGS WEREN'T GIANT WHITE SHARKS THEY WERE GIANT MAKOS REEEEEEEEEEEEEEEE

>>2292221
Are there possibilities of anything bigger than that hasn't been discovered? That's scary

>>2292234
This, RIP the Sea Mink

>>2298028
>killing a T-rex with spears

This is actual, physical retardation

Vvdg

>>2299228
Kek