Ten close relatives of Dardie Robinson's have died suddenly, of apparent heart issues, the Wall Street Journal reports. Her grandmother died at 61; her dad at 63; an uncle at 56; and another uncle at 42, all of apparent heart attacks.

But after her 29-year-old son died due to an irregular heartbeat while taking a nap, she was spurred to find out more about what was going on.

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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.