DNA traces identify owner of 20,000-year-old medallion

Scientists have used a new DNA extraction method to identify the owner of an elk tooth drilled into a pendant some 20,000 years ago.

The new technique, developed by German researchers, makes it possible to isolate DNA present in skin cells, sweat or other bodily fluids that can be absorbed by certain microscopic materials, including bones and teeth, Reuters reported.

The pendant, which was found in a cave in Siberia, was handled carefully, especially using gloves, to prevent contamination with modern DNA.

Using this method, scientists were able to determine that the object belonged to a Neolithic woman associated with hunter-gatherers who lived in caves at the foot of the Altai Mountains in Russia.

The researchers documented their findings in a study published in the journal Nature.

“This study opens up new possibilities for reconstructing the role of individuals in the past according to their gender and ancestry,” molecular biologist Elena Essel, lead researcher of the scientific paper, told Reuters in an interview.

Other worn artifacts, such as jewelry, can be studied using this method to learn more about their past.