It's Alive!

Researchers in Japan have turned murine embryonic stem cells into fully functioning sperm, which they've also used to fertilize mouse eggs in vitro, says 80beats' Joseph Castro. When the researchers implanted the embryos via surrogate mothers, the pregnant mice produced healthy offspring.

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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.