NEW YORK (GenomeWeb News) – Dental disease-causing bacteria rose through the ranks of mouth microbiomes as humans transitioned from hunter-gather diets to a diet centered around agriculture and again, more recently, as human diets began including processed foods, according to a new Nature Genetics study.

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In PNAS this week: Akt3 amplification in glioma progression, Tibetan Plateau frog genome, and more.

The US Supreme Court has declined to review a decision involving the use of "inadvertently shed" DNA in a police investigation and subsequent conviction.

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National Institutes of Health Director Francis Collins appears before a House subcommittee to discuss his agency's budget request.