This Week in Nature

In Nature this week, researchers from the Dana-Farber Cancer Institute report animal data showing that small subgroups of tumor cells can drive proliferation of surrounding cancer cells. While it has long been known that tumors consist of different populations of cancerous cells with substantial genetic heterogeneity, just how this affects disease progression has been unclear.

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A fire at a Manchester hospital may have destroyed lab equipment and data, the Guardian reports.

Researchers generate a genetic database from skeletal remains from the 1845 Franklin Expedition to the Arctic, Live Science reports.

Researchers in China have begun another trial using CRISPR/Cas9 approaches in cancer patients, according to the Wall Street Journal.

In Science this week: human DNA found in sediments from archeological sites lacking bones, and more.