This Week in PLOS

A team from the US, Russia, and Switzerland tracked down human-specific epigenetic marks in neurons from the prefrontal cortex, a brain region involved in higher order cognitive functions. As they report in PLOS Biology, the researchers assessed genome-wide histone H3 trimethyl-lysine 4, or H3K4me3, marks in prefrontal cortex samples from 11 humans, four chimpanzees, and three rhesus macaques. The search uncovered almost 500 sequences with human-specific H3K4me3 levels.

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The New York Times and ProPublica look into the close relationship between a startup and Memorial Sloan Kettering Cancer Center.

Yahoo News reports millions of dollars are being transferred from NIH, CDC, and other programs to pay for the housing of detained undocumented immigrant children.

In Science this week: in vitro generation of human reproductive cells, and more.

Researchers gave a handful of octopuses MDMA to find that they too act more social on the drug, Gizmodo reports.