This Week in PNAS

In this week's PNAS Early Edition, investigators at the University of California, Irvine, and at Metabolon discuss their analysis of "a comprehensive dataset of over 500 metabolites identified by mass spectrometry," which, through computational modeling, helped them to uncover "evidence of synergistic nodes between the circadian transcriptome and specific metabolic pathways." The public-private team presents an integrated map that it says "illustrates the coherence within the circadian

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The London School of Economics' Daniele Fanelli argues at the Proceedings of the National Academy of Sciences that the reproducibility crisis in science isn't as dire as some say.

A team of researchers in Portugal has examined the genomic basis for racing pigeons' athleticism and navigational skills, finding it's likely polygenic.

Wired reports that diagnostic firms continue to seek, post-Theranos, the ability to diagnose diseases from small amounts of blood.

In Science this week: analysis of DNA from ancient North Africans, and more.