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 ...

Scientists are finally done mapping the human genome, more than two decades after the first draft was completed, researchers announced Thursday. About 8% of genetic material had been impossible to ...

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 ...