By fishing shards of bacterial DNA from the teeth of bodies in a cemetery, researchers found the starting point for the plague that devastated Eurasia, they say.
With modern tools, the U.S. military is learning that some unidentified remains from 20th century battles are those of service members it thought were found and sent home long ago.
Ukraine’s casualties in the war against Russia are a closely guarded secret. But those who have been in the trenches along the front line know how relentless the fight has become.