A Different Take

Chad Orzel at Uncertain Principles reacts to a recent discussion on STEM attrition in higher education that was spurred by a New York Times article. "As someone who sees a lot of first-year college students who think they want to major in a STEM field, I'm not sure that all that attrition is a bad thing," Orzel says.

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In PLOS this week: phylogenetic study of hepatitis E viruses in Swedish moose, recombination sites in the honeybee genome, and more.

Differences in DNA methylation could be used to distinguish between DNA samples obtained from identical twins, researchers say.

A retrovirus that's been integrated into the human genome appears to have a role in embryonic development, researchers report.

A report from MIT identifies areas of scientific research where declining research support is hindering needed advances.