So... It's Not Flat?

Richard Thaler at Edge asks people for their favorite examples of wrong scientific beliefs, such as the world being flat and more. Scripps' Eric Topol responds that in medical school he was taught that one cells differentiated into heart muscle or nerves that they can never regenerate. "Wrong!! Enter the stem cell and regenerative medicine era," he adds. Derek Lowe names the four humors theory of physiology and that bad air caused infectious disease.

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US News & World Report writes that genetic testing of lung tumors can help identify treatments for patients.

A team of researchers plans to sample Loch Ness for environmental DNA, according to Newsweek.

The New York Times writes about the appearance of mosaicism in healthy people.

In PNAS this week: insecticide resistance patterns Anopheles gambiae mosquito, transcriptome patterns in Pseudomonas aeruginosa during infection, and more.