This Week in PNAS

The Max Planck Institute of Evolutionary Anthropology's Svante Pääbo and colleagues present findings from an effort to sequence DNA from two new Denisovan individuals whose ancient tooth samples were found in the same Altai mountain cave where the original Denisovan finger was discovered. The team successfully generated nuclear DNA sequences for an individual believed to be more than 50,000 years old whose mitochondrial DNA was sequenced previously.

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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.