A deeper understanding of how DNA changes over generations helps scientists learn why people differ and how diseases develop.

Human DNA was recovered from a footprint on a Florida beach.(Dr. David Duffy, the University of Florid) Environmental DNA has been obtained from air, soil, sediment, water, permafrost, snow and ...

A lost chapter in human evolution has been revealed after an analysis of modern DNA found that we come from not one but two ancestral populations—ones that drifted apart and later reconnected ...

Footprints left on a beach. Air breathed in a busy room. Ocean water. Scientists have been able to collect and analyze detailed genetic data from human DNA from all these places, raising thorny ...