The field of ancient DNA has revealed important aspects of human evolutionary past, including relationships with Denisovans and Neandertals. These studies have relied on DNA from bones and teeth, which store DNA and protect it from the environment. But such skeletal remains are exceedingly rare, leaving large parts of human history inaccessible to genetic analysis.
Click here for original story, Nuclear DNA from sediments helps unlock ancient human history
Source: Phys.org