An undated handout file photo shows «Otzi», Italy’s prehistoric iceman. «Otzi», Italy’s prehistoric iceman, probably does not have any modern day descendants, according to a study published on October 30, 2008. A team of Italian and British scientists who sequenced his mitochondrial DNA — which is passed down through the mother’s line — found that Otzi belonged to a genetic lineage that is either extremely rare or has died out. Otzi’s 5,300-year-old corpse was found frozen in the Tyrolean Alps in 1991. REUTERS/Handout/Files. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.