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/sci/ - Science & Math

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10747682 No.10747682 [Reply] [Original]

Were they all concentrated on a very small location? Still, I can’t imagine one meteorite being so big. Also, how was it able to selectively wipe out only dinosaurs? Not any other species?

>> No.10747684

If it released a specific chemical only dinosaurs were susceptible to then it would be analogous to us vs. the Chernobyl accident I guess

>> No.10747699

>>10747682

>imagine one meteorite being so big

It wasn't (mainly) the impact that wiped out the dinosaurs. First, the impact caused earthquakes and tsunamis around the world. Then there was the ash cloud the impact produced, which blocked sunlight, which killed plants, which killed herbivores, which killed carnivores. Additionally, toxic gases were released into the atmosphere, creating acid rains and poisoning freshwater sources around the world, making it generally a shittyplace to live in. Also, due to the ash cloud, it got cold which is bad news for underfed giant cold-blooded animals. All the acid was of course eventually deposited in the oceans, whose temperatures were also disturbed. The extinction took place over a very long time, dinosaurs weren't just wiped out straight from the impact.


>how was it able to selectively wipe out only dinosaurs? Not any other species?

It wasn't. Tons of other species also got wiped out.

>> No.10747717

>>10747699

thanks. third world education really sucks haha even my bio lecturers don’t tell me this

>> No.10747722
File: 805 KB, 600x600, BetterGratefulAmericanbobtail-small.gif [View same] [iqdb] [saucenao] [google]
10747722

>>10747699
>humans are now evolved to survive massive asteroid impact
Feels good man.

>> No.10747742

>>10747699
This, also might want to add that bigger organisms that need a lot more food to survive would have been affected even more.

>> No.10747754
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10747754

>>10747682
Tell me this is not a dinosaur

>> No.10747800

How are dumb people still asking this question? It's because debris rained down all around the Earth, burning up on re-entry, and subsequently raising the air temperature to something you might expect inside an oven, boiling all terrestrial animals alive inside their own skins. This is why burrowing mammals survived and inherited the Earth. Because they weren't on the surface while this was going on.

>> No.10747804

>>10747754
It is.

>> No.10747813

>>10747699
>permanent winter
No. That's the old, disproved theory. They boiled alive.

>> No.10747820

>>10747699
How did mammals survive if all the plant life died?

>> No.10747844

>>10747813

Maybe I have outdated information but I always thought it was both. From what I've learned, the atmosphere was hot for a short while after the impact but not to the degree you say and not on the side of the earth opposite to the impact, and especially not in the oceans. Subsequent cooling, starvation and poisoned oceans are what finished them off in the long run. Is this wrong info?

>> No.10747848

>>10747820
Not all plant life died. The bigger the plants, the more decimated they were. Shrews need less food than Brachiosauruses.

>> No.10747853

>>10747848
Still don’t see then why some Dino eggs didn’t live, and thier baby’s eat the scraps while the plant life recovers

>> No.10747858

>>10747853
Alligator.

>> No.10747862

>>10747800
is there actual evidence of the temperatures at the time? I mean a short term increase of the temp in the atmosphere of a few hundred Kelvin should leave a few marks

>> No.10747865

>>10747858
ooh so crocs are baby dinosaurs :)

>> No.10747872

>>10747853
There were but Dinosaurs are just way worse-adapted to the new game than mammals are and so, through natural selection, they were bullied out of the habitats and went extinct.

>> No.10747883

>>10747862
Lemme go out on a limb on this one.

Is the energy transfer right? I'm thinking massive energy spikes don't translate into atomic heat across a broader medium that well.
Similar property of shock waves resting transfer to new mediums. I'm thinking site zero atoms super heat to a point of inconsistency with surroundings that the aforementioned applys.

>> No.10748059

>>10747699
Didn't some one do the math and figured out that the molten ejecta solidifying as micro spherical and raining back to earth caused a bunch of friction in the atmosphere which basically heated up the entire earth up like an oven sterilizing the top layer of water and land and only things that were buried in mud or deep in earth/water or used to going through extreme heat survived.

>> No.10748075
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10748075

>>10747682
they didn't. the truth is that they died due to the global flood and not being able to fit on noah's ark

>> No.10748110

>>10747682
>How did ALL dinosaurs die from a meteorite?

They didn’t!
Avians survived, and thus therapods.

>Were they all concentrated on a very small location? Still, I can’t imagine one meteorite being so big.

They died out due to the climactic and ecological effects, not the actual blast wave.

>Not any other species?

Cretaceous-Paleocene extinction event wiped out way more than just dinosaurs. Mammals and marine reptiles suffered huge losses among other Clades including birds.

>> No.10748121

>>10748110
>They didn’t!
Avians survived, and thus therapods.

Adding on, there’s scattered evidence of non-avian dinosaurs persisting briefly into the Paleocene.

>> No.10748126

>>10747682
Watch a documentary for once...