This Week in Nature

In this week's Nature, researchers from the University of Tubingen report on genomic data linking marine mammals to the emergence of human tuberculosis in the Americas. The scientists analyzed the genomes of three ancient Mycobacterium tuberculosis specimens collected from human remains in Peru and found them to be distinct from modern-day human forms, but very similar to those adapted to seals and sea lions.

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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.