Evolution: Take Two

Eric Gaucher and Betül Arslan at the Georgia Institute of Technology are trying to determine whether a 500 million-year-old bacterial gene will evolve the same way twice, given the chance to start over, says New Scientist's Bob Holmes. The researchers are working with a gene called EF-Tu, which plays a role in protein synthesis in E. coli.

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The London School of Economics' Daniele Fanelli argues at the Proceedings of the National Academy of Sciences that the reproducibility crisis in science isn't as dire as some say.

A team of researchers in Portugal has examined the genomic basis for racing pigeons' athleticism and navigational skills, finding it's likely polygenic.

Wired reports that diagnostic firms continue to seek, post-Theranos, the ability to diagnose diseases from small amounts of blood.

In Science this week: analysis of DNA from ancient North Africans, and more.