I've combined two posts and skipped some questions, to try to keep things to a manageable length. If I've missed something important, my apologies; please repeat it.
We already have a word for subpopulation. We don’t need another, certainly not one that already has historical and colloquial use that differs from what a subpopulation is.
That's why I think subpopulation is an excellent answer. But there may be even better answers. Obviously I'm not the arbitrator of this stuff, and am not even someone who uses it in formal research. I'm just someone who casually discusses it on a computer forum.
What we used to call races are not equivalent to a subpopulations.
As I've said, we didn't used to have DNA, and barely had an understanding of natural selection and genetics, and therefore we certainly weren't understanding races. I think we need to 1) have a better understanding of humans now, without fear of being called racist and 2) come up with a good name for subpopulations without a lot of baggage that will make people scream racist.
The real issue IMO.
The original concepts and categories “race” was intended to encapsule have been disproved but some people can’t let go and want to keep the term around and repurpose it even though we already have all the terminology we need. Given the baggage and colloquial use of the term (most of which still stems from those original incorrect concepts) this is generally just a bad idea.
Surely you're not saying I'm one of those "some people." I don't want to keep the term "race" around, for exactly the reasons you said. Too much baggage.
We do? What gaps are there that existing better defined terms like population group ethnic group, Haplogroup, etc don’t already cover?
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You have it backwards. They have all the names and definitions they need. You just can’t live with the fact that none of these line up with your preconceived understanding of race.
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What exists? What are you trying to describe that isn’t already accounted for in the existing terminology?
My problem is with those who say that humans have no variation, and therefore they're all one big identical family. Since this isn't true for any other animal or plant that is spread over such a wide area, I think the concern is more about peoples' emotional needs to claim
they're not racist, than about the actual situation.
Ironically, people are more apt to
want to discover a new species or a new sub-population of penguin or salamander in an isolated location. They'll get naming rights, their name mentioned in articles, oh boy! But discovering a new species or sub-population of humans is bad, evil, racist, because only bad evil racists admit humans are like that. I'm describing the clueless general population, I hope, and not anthropologists, but it's like pulling teeth to find out what real anthropologists would say, even in a more educated forum like this, where I'd hope a few anthropologists hang out.
Such isolation doesn’t exist, and for most populations never existed.
That doesn't fit with common sense. Sub-Sahara Africans weren't breeding with the Inuit at the same rate they were breeding with other Sub-Saraha Africans. If somebody said they were, I'd laugh at them.
Again, the “differences” that actually exist are almost all related to frequency of alleles due to drift and founder effect. Nearly all alleles are still present in all human populations, the so called clusters are in the frequency with which they are present not the presence of the genes themselves.
Okay, I learned something. But what about light skin and vitamin D and being able to digest milk, though? I thought that was all tied into fitness for the environment. There are a few other things like that too.
Again what differences are you looking to describe? All humans descend from a relatively small number of individuals in the relatively recent past. We have relatively little genetic diversity as large or midsized mammals go.
Well, how come the Inuit don't win marathons? Why do some populations succeed at sprinting and others at long distances? Or why do some breed true with dark skin and others with light? Our barn cats produced random colors, but people don't.