This Week in Nature

In this week's Nature, an international team of researchers reports on the sequencing and analysis of the genomes of two acorn worms, gaining new insights into the origins of deuterostomes — a diverse group of organisms that includes the worms, starfish, and humans, and whose phylogeny is unclear.

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The apple has traveled westward and eastward along the Silk Road, according to a new genetic analysis.

In Nature this week: GWAS data used to reposition drugs for psychiatric use, and more.

Genetic disease risk information doesn't always spur people to make healthy lifestyle changes, according to the Associated Press.

A University of California, San Diego-led team has used liquid biopsies to uncover possible treatments for patients with cancers of unknown primary.