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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Researchers have sequenced the northern white rhinoceros to gauge whether it could be brought back from the edge of extinction, the New York Times reports.

Bavaria expands its forensic genetic analyses to include DNA phenotyping, raising discrimination concerns.

Tufts University researchers found a role for miRNA in transmitting stress between generations, the Economist reports.

In Science this week: gut microbiome influences liver cancer growth, spread; and more.