This Week in Nature

By searching through eukaryotic genome sequences for proteins with conservation or divergence patterns similar to those of known small RNA proteins, Harvard University's Gary Ruvkun and his colleagues were able to uncover new small RNA pathway proteins involved in silencing, as they report in an article published online in Nature this week.

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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.