In the early, online edition of Genome Research, a group from the US, UK, and Colombia describes findings from a comparative genomics-based study on a form of adaptive variation in butterflies known as mimetic wing coloring.

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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.