The 5,300-year-old mummy's maternal line appears to have originated and died out in the eastern Italian Alps.
The Iceman had a stomach bug and scientists had to melt the mummy to make the discovery.
The finding not only suggests the Iceman may have been feeling ill on the day he was murdered, but offers a glimpse into the history of Europeans.
The Iceman, who died between 3370 and 3100 B.C., has 61 marks on his body made by fine incisions into which charcoal was rubbed.
A new imaging technique allowed researchers to identify 61 tattoos on the 5,300-year-old mummified body of Ötzi the Iceman.
Otzi the Iceman, a well-preserved mummy discovered in the Alps, may have had a genetic predisposition to heart disease, new research suggests.
Three-dimensional scans of the Iceman's teeth show a number of painful conditions related to a Neolithic diet. ->
A female skeleton, also known as 'Oetzi's girlfriend,' has been lying on her side for 5,000 years in the Italian Alps.
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