/sci/ - Science & Math » Thread #13131175

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Evolution and immigration

Anonymous Fri 14 May 19:21:52 2021 No.13131175 View Reply Original Report

Quoted By: >>13131184 >>13133102

Lighter skin in low sun environments is an obvious advantage for survival since it makes the absorbion of vitamin/hormone D so much easier.

By laws of evolution black people in low sun environments are expected to get lighter and lighter skin with each generation. Is there any way to empirically test this or are any sources present?

Anonymous

Anonymous Fri 14 May 2021 19:23:59 No.13131184 Report

Quoted By: >>13131198 >>13131216 >>13133102 >>13134949

>>13131175
>What are vitamin-d Pills
Natural selection has broken down, and it aint coming back.

Anonymous

Anonymous Fri 14 May 2021 19:25:50 No.13131197 Report

Quoted By: >>13131216

>don't know if bait or extremely stupid
In any case, don't reproduce, OP.

Anonymous

Anonymous Fri 14 May 2021 19:26:12 No.13131198 Report

Quoted By: >>13131213 >>13134869

>>13131184
Natural selection is not gone, but modern, industrialised society is a fundamentally different selective environment to palaeolithic Europe.

Anonymous

Anonymous Fri 14 May 2021 19:29:30 No.13131213 Report

Quoted By: >>13131222

>>13131198
Well, yeah. It aint driven by nature, but by humans. Not natural.

Anonymous

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Anonymous Fri 14 May 2021 19:30:06 No.13131216 Report

Quoted By: >>13131340

>victorian IQ was 15 points higher than today

Can anyone look in the mirror an say that IQ isnt an adaptive trait? Why is it dropping?

>>13131184
>Natural selection has broken down

interesting statement. Since when and why? Have we reached the end of history and rules have changed?

>>13131197
>Im a midwit that follows implications of my own belief system only where it feels good

Anonymous

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Anonymous Fri 14 May 2021 19:31:20 No.13131222 Report

Quoted By:

Why arent black population in northern countries getting lighter skin?

>>13131213
>humans are not a part of nature

brilliant.

Anonymous

Anonymous Fri 14 May 2021 20:00:01 No.13131340 Report

Quoted By: >>13131403

>>13131216
>Can anyone look in the mirror an say that IQ isnt an adaptive trait? Why is it dropping?
the guy that made that study literally believes in cryptids. his entire methodology is based on fucking blinking time from whatever cherrypicked datasets he found. it contradicts the thousands of studies done by reputable scientists and even state departments with some of them having n>1 000 000

Anonymous

Anonymous Fri 14 May 2021 20:11:20 No.13131403 Report

Quoted By:

>>13131340
>the guy that made that study literally believes in cryptids.

well they guy that irrationally responded to that claim (you) is assummed to be homosexual so I can reject (your) posts as unscientific. Bloody retard.

IQ is dropping drastically, you dont even need that guy who you just discredited with your supreme scintific method. Ever heard of the Flynn effect?

Anonymous

Anonymous Sat 15 May 2021 03:08:16 No.13133102 Report

Quoted By: >>13134839

>>13131175
evolution is such a simple algorithm, it's 3 steps, and somehow its too complicated for you.

it's inheritance, mutation/variation and selection.

For the black people in low sun climates to get lighter skin every generation, some sort of environmental pressure would have to eliminate the darkest skinned from the gene pool. But there is no selection, because
>>13131184

They are however getting lighter skinned every generation through breeding with the lighter skinned population though.

Anonymous

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Anonymous Sat 15 May 2021 12:43:51 No.13134839 Report

Quoted By: >>13134914

>>13133102
>For the black people in low sun climates to get lighter skin every generation, some sort of environmental pressure would have to eliminate the darkest skinned from the gene pool. But there is no selection, because

but your premise is simply factually false, talking about simplicity, most migrant populations in northern climates drastically lack vitamin D (despite the empiricall unproven ASUMPTION that they take vit D). By laws of evoloution you should expect it to change, as simple as you can get.

>getting lighter skinned every generation through breeding

what a dishonest way to spin it, selective breeding is not mutation and that wasnt even my question.

Anonymous

Anonymous Sat 15 May 2021 12:52:44 No.13134869 Report

Quoted By: >>13134893

>>13131198
Well yeah, we have indoor environments where you can spend 24 hours a day without ever even seeing the sun. If anything, humans in Europe will evolve to be even lighter than they are now. Ginger people, for instance, can actually synthesize vitamin D on their own without the sun, hypothetically in a world where everybody stays inside all the time everyone would evolve to be ginger.

Anonymous

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Anonymous Sat 15 May 2021 12:59:35 No.13134893 Report

Quoted By: >>13134955

>>13134869
>If anything, humans in Europe will evolve to be even lighter than they are now.

well that is the assumption based on evolutionary paradigm, but, like all evolutionary predictions about the future, its factually totally incorrect.

Anonymous

Anonymous Sat 15 May 2021 13:06:29 No.13134914 Report

Quoted By:

>>13134839
this image would actually be legit if the toes didn't just disappear but rather all became the same appendage.

Anonymous

Anonymous Sat 15 May 2021 13:16:32 No.13134949 Report

Quoted By:

>>13131184
Sort of. We've eliminated functionally all ecological variables of natural selection as they previously were. In return we're responding to our ecology as it is now, and it's changed sexual selective pressures. It's possible We've fucked ourselves by some of these, though as our biology is still very much tailored to our old way of living. All depends if we catch up before we go extinct.

Anonymous

Anonymous Sat 15 May 2021 13:19:10 No.13134955 Report

Quoted By: >>13134971

>>13134893
How so? It's not hard to predict. Indoors = less sun = lighter skin.

Anonymous

Anonymous Sat 15 May 2021 13:24:06 No.13134971 Report

Quoted By:

>>13134955
>Indoors = less sun = lighter skin.

exept its the opossite, people spend more and more time indoors and europe and america is becoming browner and browner.

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