This Week in Science

In this week's Science, a team of Danish researchers report on the discovery of an epidermal microRNA involved in neuronal migration. They found that the Caenorhabditis elegans miR-79, an ortholog of mammalian miR-9, controls sugar-chain homeostasis by targeting two proteins in the proteoglycan biosynthetic pathway.

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The ancestors of the Arizona bark scorpion and other scorpions and spiders underwent whole-genome duplication, KJZZ reports.

A cryptographic approach could help researchers keep genomic data private while researchers analyze it, Scientific American reports.

Andy Page, the former president of 23andMe, has joined a diabetes-management startup, according to CNBC.

In Cell this week: regulatory changes in pancreatic cancer, metabolic shifts in Alzheimer's disease, and more.