Four US Defense Department labs are under investigation by the Centers for Disease Control and Prevention over their handling of microbes used in bioterrorism research, the New York Times reports.

The errors at the labs involved samples of anthrax, plague, and a virus that causes encephalitis, which the agency studies to defend against their use as weapons. Officials say these errors posed no risk to the public.

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23andMe's Anne Wojcicki ponders DNA and what it means to be human in a New York Times essay.

A new estimate places the last universal common ancestor to life on Earth as living 3.9 billion years ago, Inverse reports.

In PNAS this week: retinitis pigmentosa gene therapy, role of microbiome in growth stunting, and more.

Bloomberg reports that researchers and drug companies are modeling anti-obesity treatments after the rare genetic condition essential fructosuria.