This Week in PNAS

In a study appearing in the early, online edition of the Proceedings of the National Academy of Sciences, a Max Planck Institute for Evolutionary Anthropology-led team describe an improved ancient DNA extraction method used to help sequence the mitochondrial genome from a more than 300,000-year-old cave bear bone found in a permafrost-free cave in Spain.

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Mary Beckerle has been removed as director of the Huntsman Cancer Institute in what one researcher refers to as a "coup," ScienceInsider reports.

Bill Gates tells the Telegraph that bioterrorism is a serious risk.

The March for Science is to take place tomorrow, and supporters are tapping their creative energies to create placards to carry.

CBS News reports that the White House Science Fair is to continue under President Donald Trump.