While many government officials have in recent years called for US universities to train more PhD scientists, says The Washington Post's Brian Vastag, "it's questionable whether those youths will be able to find work."

Still, scientists' overall unemployment rate is much lower than the national average, though Vastag notes that is because "many scientists work outside their chosen field."

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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.