Climatic conditions are also significant factors when it comes to skin colour in my opinion

[princeton90]

I don't say genetics is not important on this topic but climatic conditions are also significant factors. I have two arguments.

1. Some Caucasian groups like Georgians, Chechens, Circassian are genetically more southern than some Southern Europeans like Portuguese, Greeks, Spaniards but at the same time these Caucasian groups are lighter. The reason is Southern Europe's being sunnier and warmer.

2. Ashkenazi Jews genetically cluster with South Italians but lighter skinned. This is because Ashkenazi lived in Eastern and Central Europe which are colder and more overcast than Southern Italy.

I don't claim anything nor I don't have any political agenda. These are just my views.

[Skjaldemjøden]

https://www.theapricity.com/forum/sh...-opinions-here

[Creoda]

It's no secret that geography, climate and terrain influence evolution.

[Chris596]

It surely is a significant factor, but in a long term. Don't expect for example Indians or Sub Saharans living in Canada or Scandinavia to become lighter even in hundreds of years just by living there.

I think it takes many other factors as well as mutations (possibly thousands of years of mutations) to become lighter or darker depending on climatic conditions.

[Token]

The lighter pigmentation of Ashkenazi Jews has to do with changes in allele frequencies after multiple bottleneck events in Central Europe. It just happens that their small founding population had higher frequency of blondism. Climatic conditions can have effect on pigmentation, but only in the very long term.

[Ülev]

it's almost 250 years and European Australians still white

[princeton90]

it's almost 250 years and European Australians still white

Yes, they are still white but 250 years is so short for climatic conditions to show visible effect on human phenotype.

[Aldaris]

There is a link between climate and phenotype, but you apparently don't get the reasons behind. In short, it's still genetics, not some other magical thing - different skin colors have different benefits in different climates and that will show up in the tens of thousands of years long period when we weren't able to make up for various stuff with technology. But it's not like there's some process which will handle that automatically. Every little change in skin color more fit to the lifestyle in the particular environment meant that the individual with such a mutation generally had a better potential for having viable offspring than someone without it. Gradual natural selection takes it from there. And that's a Darwinian process, while what you seem to suggest is some sort of Lamarckism, which is effectively debunked.

[pulstar]

What a random thread title, I laughed like crazy

[princeton90]

There is a link between climate and phenotype, but you apparently don't get the reasons behind. In short, it's still genetics, not some other magical thing - different skin colors have different benefits in different climates and that will show up in the tens of thousands of years long period when we weren't able to make up for various stuff with technology. But it's not like there's some process which will handle that automatically. Every little change in skin color more fit to the lifestyle in the particular environment meant that the individual with such a mutation generally had a better potential for having viable offspring than someone without it. Gradual natural selection takes it from there. And that's a Darwinian process, while what you seem to suggest is some sort of Lamarckism, which is effectively debunked.

In my opinion, the offsprings of Black, Indian, Arabian immigrants in Northern, Western Europe, North America will be visibly lighter 2000-5000 years later.