You need to show a specific kind of selection, one where human populations have different selective pressures. No evidence of this exists (and some evidence exists showing it is not the case). If selection has acted on humans it's acted on us all in the same way
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Replying to @thebirdmaniac @FuckerLocust and
Australian Aborigines have excellent visual memory and their visual cortex is 25% larger than Europeans. It would be interesting to know why that is.
@gcochran99 http://www.goldenageproject.org.uk/58aborigine.php6 replies 3 retweets 15 likes -
Replying to @Biorealism @FuckerLocust and
Not really, but also no reason to jump so quickly to a genetic explanation
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Replying to @FuckerLocust @Biorealism and
I don't know. But there's no reason to think that genetics is the only possible answer.
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Replying to @yarbsalocin @FuckerLocust and
They have lower cranial capacities, too. Also genetic of course.
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Replying to @gcochran99 @FuckerLocust and
"of course" is a favorite phrase of yours, I'm guessing.
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Replying to @yarbsalocin @gcochran99 and
I'm curious what possible *non* genetic cause could result in smaller cranial capacities. "Hearing mean things makes your skull grow smaller" is the alternative and is insane.
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Replying to @CovfefeAnon @gcochran99 and
That's actually not the alternative and you'd have to be an idiot to think otherwise.
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Ah, must be really tight fitting hats then. Unless you have a better non genetic explanation...
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