This Week in PLOS

Investigators in Switzerland report their study of the establishment of a gut microbiome in infants in PLOS One. Using a combination of culturing, 16S rRNA gene sequencing, qPCR analysis, and Sanger sequencing, they examined the bacterial makeup of feces from seven healthy, vaginally delivered, breast-fed babies. The researchers found that there were more anaerobic bacteria than facultative anaerobic bacteria in all samples, with high levels of Bifidobacterium and Bacteroides.

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Two researchers have found that behavioral genetic defenses in criminal cases don't tend to affect outcomes, according to Popular Science.

Researchers report that while host genetics influence the oral microbiome, they don't appear to affect cavity-causing microbes, the Economist says.

Pandas' gut microbiomes change as what they eat changes with the seasons, writes Discover's Inkfish blog.

In PLOS this week: comparative genomic study of malaria-linked macaque parasite, search for apple root reference genes, and more.