https://phys.org/news/2019-01-dna-tool-ancient-ancestry.html > Now scientists have defined a new concept called Ancient Ancestry Informative Markers (aAIMs) - a group of mutations that are sufficiently informative to identify and classify ancient populations. > The research, led by Dr. Eran Elhaik, from the University of Sheffield's Department of Animal and Plant Sciences, saw the identification of a small group of aAIMs that can be used to classify skeletons to ancient populations.