It had been thought that North and South America were populated in one large migratory wave from Siberia, but a new study published in Nature shows that there were probably three waves of migrants who became the Native Americans of North and South America, says The New York Times' Nicholas Wade.
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The Wall Street Journal reports that National Institutes of Health Director Francis Collins' response to contamination concerns at the agency might have delayed care.
The final revision of the Common Rule doesn't include the proposed change requiring consent for leftover biospecimens.
The first Reproducibility Project: Cancer Biology papers show mixed results.
In Nature this week: mobile phone-based targeted DNA sequencing, and more.