The BBC reports on a paper published in the American Journal of Human Genetics in which scientists from the Genographic Project report finding faint DNA traces "left by medieval crusaders in the Middle East," according to the article. "The researchers found that some Christian men in Lebanon carry a DNA signature hailing from Western Europe."

 

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Vivek Murthy is no longer the surgeon general of the US, the Associated Press reports.

People around the globe took to the streets to support science — some with signs.

Parents who learn of their increased genetic risk of disease also contend with telling their children about theirs, the New York Times writes.

In PLOS this week: loci linked to body mass index measurements, long non-coding RNA expression and urothelial carcinoma prognosis, and more.