Leprosy, a disease that may conjure up images of medieval leprosariums, still infects some 200,000 people a year, mostly in developing nations like India and Brazil, the New York Times reports.

Recent analysis of the bacterium behind the disease, Mycobacterium leprae, indicates that it is "rugged and feeble, exacting and inept," the Times' Natalie Angier says,

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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.