Researchers determined what the chewer looked like, their gender, their diet, and their lifestyle — all from this piece of multi-millennia-old gum that was found in Denmark.

Archaeologists in Lolland, Denmark unearthed a piece of 5,700-year-old chewing gum made of birch bark and found to their great surprise that the ancient artifact contained DNA. The DNA was so well-preserved that scientists could reconstruct the entire human genome of the Stone Age person who had chewed the gum.

According to The Smithsonian , experts were even able to identify the microbes that lived in this ancient human’s mouth and determine their dietary habits — all from a piece of multi-millennia-old gum.

“These birch pitch chewing gums are kind of special in terms of how well the DNA is preserved,” said co

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