This Week in Nature

In this week's Nature Genetics, an international team of researchers reports on a study of the genetic similarities between distantly related marine mammals, providing new insights into how these animals developed similar traits despite their different ancestries. The researchers sequenced the genomes of the killer whale, walrus, and manatee, and refined the genome sequence for the bottlenose dolphin.

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Researchers describe a way to share data while keeping it secure, Agence France Presse reports.

In Science this week: genetic mutations typically associated with esophageal cancer are common in older, healthy individuals, and more.

India's Council of Scientific and Industrial Research has a new director-general, according to ScienceInsider.

A new study links more than a hundred genes to autism spectrum disorder, Discover's D-brief blog reports.