What killed Napoleon's army? Scientists find clues in DNA from fallen soldiers' teeth

Two-to-three thousand soldiers from Napoleon

In 1812, hundreds of thousands of men in Napoleon's army perished during their retreat from Russia. Researchers now believe a couple of unexpected pathogens may have helped hasten the soldiers' demise.

(Image credit: Michel Signoli / UMR 6578 Aix-Marseille Université, CNRS, EFS)