This Week in PLoS

In PLoS Genetics, a paper links genetic and fossil data. Robert Meredith from the University of California, Riverside, is first author on work that sequenced most of the protein-coding region of the enamelin gene in four different orders of placental mammals that lack teeth or have teeth without enamel. In all cases, they found frameshift mutations and/or stop codons that result in a mutated, dysfunctional form of the enamelin protein.

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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.