In Nature this week, researchers at Rockefeller University report on a "microRNA regulon that mediates endothelial recruitment and metastasis by cancer cells." More specifically, the team shows that miR-126 "non-cell-autonomously regulates endothelial cell recruitment to metastatic breast cancer cells in vitro and in vivo" and that it "suppresses metastatic endothelial recruitment, metastatic angiogenesis, and metastatic colonization through coordinate targeting

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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.