This Week in Science

In Science this week, a team of Italian researchers reports on the results of a study of mitochondrial DNA obtained from the teeth of ancient humans, giving new insights into the downfall of Neanderthals in Europe. The Protoaurignacian culture appeared in southwestern and south-central Europe around 42,000 years ago, but it has been unclear whether it is the result of anatomically modern humans or the Neanderthals they soon replaced.

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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.