Apparently, white people have larger pupils, and intelligence is unrelated to pupil size aside from its relation to race. What's the theory here, anthropologists? (Military data from 1960-1980s, men only)pic.twitter.com/ic7LCWx9aH
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White people evolved to live in higher latitudes where seeing better in the dark is a distinct survival advantage (would be my guess). The same is said for blue eyes.
So did East Asians, and yet they have smaller pupils. Maybe that's a body size confound. I don't think this dataset has height, for some odd reason, so I can't adjust.
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Northern Europe is higher latitude than East Asia, the mutation could have happened there, especially in places that have very dark winters?
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