This Week in PNAS

By resequencing 630 gene fragments of rice chromosomes from wild and cultivated accessions, researchers led by New York University's Michael Purugganan were able to infer the evolutionary history of rice, as they report in this week's PNAS. The team took both a diffusion-based approach to model the SNP data and a Bayesian evolutionary approach for its phylogenetic analyses. These studies, the team says, suggest a single origin of rice that dates to about 8,200 to 13,500 years ago.

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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.