Molecular geneticists at Emory University have published a study in PLoS Neglected Tropical Diseases on the possible origins of the substrain of syphilis responsible for the first recorded epidemic in Europe, reports the New York Times. Comparing 21 genetic regions in 26 geographically distinct strains, they concluded that the strains causing venereal disease were most closely related to the non-venereal streains from South America.

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

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.

In PNAS this week: history and genetic diversity of the scarlet macaw, approach for predicting human flu virus evolution, and more.