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Putting Feces to Work

This one's not for your lunch break: Daisy Ginsberg and James King, from London's Royal College of Art, teamed up with the University of Cambridge's International Genetically Engineered Machine Jamboree team to create a "Scatalog" — a briefcase full of wax stool sample models flecked with different colors. The Cambridge group transformed E. coli "into a living, color-coded chemical detector they dubbed E. chromi," The Scientist reports. "E.

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Nature News reports that researchers in Japan hope to soon test the use of reprogrammed stem cells to treat damaged corneas.

A new approach may help limit the number of fish that are mislabeled at markets or restaurants, according to New Scientist.

At Slate, the R Street Institute's Nila Bala discusses the privacy rights of suspects that genetic genealogy approaches in law enforcement bring up.

In PNAS this week: numerous mobile genetic elements contribute to Vibrio cholerae drug resistance, troponin I mutations in sudden infant deaths, and more.