In PNAS this week, researchers at the Centre National de la Recherche Scientifique have found that piRNAs play a role in post-transcriptional gene-silencing of transposable elements in Drosophila egg cells. They showed that the repression of the functional I elements located in euchromatin requires piRNA proteins, and the amount of ovarian I element piRNAs correlates with the strength of the repression.

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NPR reports on Human Cell Atlas Consortium's effort to catalog all the different cell types within the human body.

The Union of Concerned Scientists surveyed US government scientists about Trump Administration policies and more, Science reports.

National Geographic reports that marine mammals have lost a gene that could make them more susceptible to organophosphate damage.

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