This Week in Nature

In Nature this week, a team from Queen Mary University reports on research indicating that convergent evolution — the process by which similar traits appear in different species — is widespread at the genetic level. They studied the rise of echolocation, which is present species ranging from bats to dolphins, comparing the genomes of 22 mammals, including ones with the ultrasonic ability, and found genetic signatures consistent with convergence in nearly 200 genomic regions.

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Sequencing could help combat foodborne illnesses, according to a blog post by Food and Drug Administration officials.

Popular Mechanics reports that Caltech researchers have built a prototype nanobot using DNA.

The Sacramento Bee writes that direct-to-consumer genetic testing connected a woman to sperm donor-conceived half siblings.

In PLOS this week: gene expression catalog for sheep, viral diversity among respiratory samples from camels, and more.