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File: HIhrCBIa0AM9GX1.jpg (151 KB, 1386x1475)
151 KB JPG
Here's an example of ongoing human physiological change: some people have a third artery in their arm. Some don't.

~10% of people born in the 1880s had the third artery, but ~33% of late 1900s babies have one, and a 2025 Australian cadaver study found it in ~43% of upper limbs.
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>>>/sci/
>>
Christard Apologetics will still look at this and claim that evolution is false
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>>18482744
Wow. This proves we evolved from fish. Way to go.
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>>18482781
Exactly. OP is a retard. Everyone knows a jew snapped his fingers last Tuesday and poofed everything into existence.
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>>18482744
Is this actually a change within the same population or might this just be confounded with global demographic change? If for example Africans had this at higher rates but the rate among them is unchanged, the total human rate would be much higher now than in 1880
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>>18482744
Im no evoluntionologist, but that evolution was only over like 10 generations, max. Wouldn't it take longer? Genuinely asking. How does that work? worldwide, people get the same genetic mutation simultaneously? What could be the cause?
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>>18482804
evolution has no fixed period. It's just the emergence of new gene expressions from a set of earlier gene expressions
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>>18482804
The most clear evidence for evolution is the fact that diseases constantly mutate to account for different hosts they infect and antibiotics developed against them. If evolution wasn't real we would have wiped out all disease upon discovering penicillin.
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>>18482804
It's almost certainly >>18482794, no change within population but rather populations with this trait becoming relatively larger
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>>18482744
B-but God created us perfectly in his image.
T-there's no bone in our body that is superfluous or missing. His creation must be p-perfect.
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>>18482794
>>18483839
Not only is Australia not 33+% African, the study specifically says the cadavers they examined were Australians of European descent.
This artery is also apparently present in most (all?) fetuses and just usually gets replaced by the other two. So what's actually happening is that it is persisting more often.
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>>18482781
Um ackshully sweatie we are fish.
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>>18483867
African was only an example, it could also be Asians in which case this would be expected in Australia which is now massively Chinese
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>>18482804
It's possible that evolution doesn't take place through Natural Selection as is oftentimes said, such as one individual mutates a specific trait that just so happens to be really beneficial, and they go on to reproduce with all the members of the opposite sex or whatever. Instead evolution takes place when environmental pressure forces almost all members of the species to start expressing certain genes more intensely until the change in gene expression becomes permanent. So sort of like we have all these specific genes, but they can be altered depending on necessity (Such as stressful environments which cause epigenetic changes) and over time these changes in gene expression end up transforming the whole species without there being any sort of Natural Selection or Sexual Selection.
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>>18483867
If 3rd artery is in all fetuses, then that could answer my first question. Could someone speculate on what would cause this mass change?
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>>18484039
Fascinating. That answers all of my questions. I'll look into how the epigenetic change happens. The cause-effect chain. wondering what the environmental cause would be for a 3rd artery.
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>>18484039
Are we seriously doing Lamarckism now?
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>>18482781
Haha
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>>18482804
>>18483867

>What could be the cause?
more fat clogging the 2 veins forcing the 3rd vein to remain open
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>>18484069
It's called epigenetics, he was onto something.
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>>18482744

If evolution is true then why aren't we all 6'8 blonde-blue-eyed jawmaxxed white chads with 8 inch cocks???
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>>18486922
give another 200 years of women empowerment and they will only mate with gigachad and fuck dogs if they can't
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>>18482744
>~10% of people born in the 1880s had the third artery, but ~33% of late 1900s babies have one, and a 2025 Australian cadaver study found it in ~43% of upper limbs.
There was no way to reliably test this in the 19th century. Sounds like fake news.
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>>18482752
well, yes. they are still humans, aren't they?
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>>18487150
>no dissections of cadavers in the 19th century
... or you don't know what an artery is, and think it needs some sophisticated tech to figure it out.
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>>18482744
Microevolution bros, we just can't stop winning.
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>>18485274
this guy knows what's up
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>>18486922
because short women with recessed chins still reproduce



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