This Week in PLOS

Individuals with chronic periodontitis tend to have distinct microbial communities in deep pockets around their teeth compared to those at healthier sites closer to the surface, according to a PLOS One study by Virginia Commonwealth University researchers. The team used 16S ribosomal RNA gene sequencing to characterize paired shallow and deep oral microbiome samples from 88 individuals with chronic periodontal disease.

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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.