Researchers continue to cite papers after they've been retracted, writes Cat Ferguson at Retraction Watch.
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Geneticist Adam Rutherford speaks with BBC News about paleogenetics, race, and more.
Researchers link genetic links between education and smoking and longevity.
In PNAS this week: influence of gene environment interactions on polygenic traits, epigenetic features affecting fruit fly foraging, and more.
The New York Times reports that as China invests in science, it also is dealing with research fraud.