In part one of his series on the existence of the human genome, Penn State researcher Ken Weiss talks about how "type specimens" chosen to represent entire species are arbitrary, especially considering how variable the species they represent actually are. In this way, he argued, "the human genome does not exist."

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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.