Inherit the RNA

A new study in Cell shows that C. elegans doesn't need DNA or even epigenetics to pass traits down through the generations, says 80beats' Veronique Greenwood. Some worms can use RNA to fight off viruses and that these molecules — and the ability to fight the virus — can be passed on for more than 100 generations, she adds.

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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.