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Researchers at Harvard and UC San Diego published a paper online in advance in PNAS this week showing that "maps of friendship networks show clustering of genotypes." Using six available genotypes from the National Longitudinal Study of Adolescent Health, the team mapped genetic similarities among more than 3,000 friend pairs and found that, when controlled for population stratification, "one genotype is positively correlated (homophily) and one genotype is negatively correlated (het

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A new Trump executive order about "free inquiry" on college campuses may threaten $35 billion-worth of federal research funding, reports Ars Technica.

As we enter conference season, Nature News asks why graduate students and postdocs are sometimes forced to choose between paying the rent and paying to attend important meetings.

A new analysis says that a 2018 study claiming to show biparental mtDNA inheritance has several flaws.

In PNAS this week: a genome sequence analysis of Crucihimalaya himalaica, multicellularity and fruiting body development in mushroom-forming fungi, and more.