"Subspecies" has an actual definition that is not actually met by the term "caucasian," which in practice fails to cohere to any definition rooted in genetics. (As I have no actual idea if you know at this point.)
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Replying to @Outsideness
By all means, link me to where there's a coherent genetic definition of "Caucasian" then.
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Replying to @ElSandifer1 reply 0 retweets 2 likes
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Replying to @homunculette @Outsideness
Sure he can, and I'm looking at it, though at first glance it appears to just be DNA Haplogroups, which do a poor job of giving a coherent definition of "caucasian" and a worse job of qualifying as a subspecies.
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Replying to @ElSandifer @homunculette
Any definition of a "subspecies" beyond "the level of taxonomic order beneath a species" is sheer scholasticism. ...
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... Real taxonomic order is inherently messy, because evolutionary biology is. Concepts are scientific only if they follow the phenomenon.
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... If there's a coherent pattern of genetic distance, it merits a word -- unless people are deliberately trying to obfuscate (which is not untypical).
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I mean, Elizabeth used such a word - "haplogroup". The attempt to revitalize the related but outdated word "race" instead seems to do little work besides let older, some not-even-claiming-to-be-scientific concepts of race free-ride on only formally similar premises
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"Race" hasn't been mentioned in this conversation, although there is no good reason why it shouldn't have been. ...
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... The attempt to indicate technical invalidation of sound empirical concepts in general circulation is an undisguised ideological engineering project.
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Replying to @Outsideness @homunculette
That's an endearingly paranoid way of trying to ignore the fact that "subspecies" implies a bar that is in no way met by y-chromosome haplogroups.
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