In other species that intermix like that, you see stretches of DNA where all admixture is excluded, because it’s instantly selected out. In humans, such a stretch exists, and has to do with sex determination, which is a pretty much a smoking gun. I’m finding stuff about the Y chromosome, but I thought there was something on the X chromosome to do with testicle development as well.
Obviously, female hybrids were fertile at least some of the time, since there is admixture. But, it’s possible every half-and-half male hybrid ever ended up sterile, and later generations would probably have had higher rates of sterility.
The general idea that humans are irrationally obsessed with categories and tribes holds, but this doesn’t seem like a clear-cut example.
but retaining neanderthal genes adaptive to the northern climate.
Shake and bake a couple generations, you get white people.
Anyone outside of Africa has similar-ish admixture; skin colour has little to do with it. European hunter-gathers at the end of the ice age were what we’d consider black, and they were replaced by Middle Eastern looking and originating agriculturalists. The light skin colour is from Eurasian steppe nomads that rode in on the first horses in the bronze age. Other unrelated groups, like from the Caucuses area or pre-modern Japan, also have/had light skin.
Here, I won’t add anything, I’ll just cited what I’ve brought up:
The Neanderthal stuff is recent research and still kind of in flux, so you could object that there might be another interpretation somehow. The bit about everyone outside of Africa having admixture is here, and it actually mentions that east Asians have the highest proportion.
This is a photo of historical Ainu in Japan which gives a sense of why I’d compare them in appearance to Europeans, as some of the Europeans themselves did. There isn’t actually a close relation:
In other species that intermix like that, you see stretches of DNA where all admixture is excluded, because it’s instantly selected out. In humans, such a stretch exists, and has to do with sex determination, which is a pretty much a smoking gun. I’m finding stuff about the Y chromosome, but I thought there was something on the X chromosome to do with testicle development as well.
Obviously, female hybrids were fertile at least some of the time, since there is admixture. But, it’s possible every half-and-half male hybrid ever ended up sterile, and later generations would probably have had higher rates of sterility.
The general idea that humans are irrationally obsessed with categories and tribes holds, but this doesn’t seem like a clear-cut example.
Anyone outside of Africa has similar-ish admixture; skin colour has little to do with it. European hunter-gathers at the end of the ice age were what we’d consider black, and they were replaced by Middle Eastern looking and originating agriculturalists. The light skin colour is from Eurasian steppe nomads that rode in on the first horses in the bronze age. Other unrelated groups, like from the Caucuses area or pre-modern Japan, also have/had light skin.
I’m sorry, there’s just so many incorrect things you just gishgalloped that were never gonna get thru this.
I can’t explain anything if every time I try you being up 5 more things you need explained.
Here, I won’t add anything, I’ll just cited what I’ve brought up:
The Neanderthal stuff is recent research and still kind of in flux, so you could object that there might be another interpretation somehow. The bit about everyone outside of Africa having admixture is here, and it actually mentions that east Asians have the highest proportion.
On the origin of white people, here’s the steppe herder component and here’s the bit about them having horses. This is the Middle Eastern agriculturalist part and these are the original hunter-gatherer inhabitants of western Europe, specifically the section on them likely being black and blue-eyed.
This is a photo of historical Ainu in Japan which gives a sense of why I’d compare them in appearance to Europeans, as some of the Europeans themselves did. There isn’t actually a close relation: