So far, no one knows exactly what happened in the evolving Marc Hauser melodrama — what did he do? The Chronicle of Higher Education reports that a new document shows Hauser may have fabricated data. The internal university document shows that some of Hauser's research assistants became convinced that he was "reporting bogus data" and that he was very aggressive against those who asked for verification of his findings, the Chronicle's Tom Bartlett says.

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Publication of He Jiankui's work on gene-edited infants would raise ethical concerns for journals, Wired and others report.

The New York Times reports that evidence linking trauma in one generation to epigenetic effects that influence subsequent generations may be overstated.

ScienceInsider reports that US National Institutes of Health researchers were told in the fall they could not obtain new human fetal tissue.

In PNAS this week: skin pigmentation evolution among KhoeSan, biomarkers for dengue virus progression, and more.