- Genetic indicators for school duration are linked to diverse physical outcomes, complicating their interpretation as direct intelligence measures.
- Replication of the genetic signal in disparate populations proves it is a robust, non-coincidental biological phenomenon.
- High concordance of these markers suggests ongoing natural selection for traits that favor educational engagement.
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Natural Selection Is Making Us Stay in School Longer - David Reich
The analysis examines whether common genetic markers associated with years of schooling reflect intelligence or broader biological traits and whether these markers suggest evidence of natural selection across distinct global populations.
Key Takeaways
- Genetic markers linked to educational attainment correlate with diverse unrelated traits like obesity and walking speed, suggesting they do not purely measure intelligence.
- Researchers confirmed the validity of the educational attainment genetic signal by observing it in genetically disconnected European and Chinese populations.
- The cross-population consistency indicates a historical trend of natural selection favoring genetic variants that manifest as increased years of schooling.
Talking Points
Analysis
Strategic Significance: - This research highlights the complex, polygenic nature of social behaviors. Understanding that education...
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