New uses for old DNA

Several years have elapsed since the last report of million-year-old DNA, coinciding with increased standards for experimental procedures in ancient DNA research. Whereas many earlier studies are now regarded as erroneous, the recent successful characterisation of Neandertal DNA has set new standards for the field. Researchers continue to find new ways to exploit preserved genetic information in studies of more recent remains, widening the utility of ancient DNA. (C) Current Biology Ltd ISSN 0958-1669.