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Where ¿ë»êÆ÷ÀåÀÌ»ç did the DNA come from?
The DNA was stuck in a black-brown lump of birch pitch, produced by heating birch bark, which was used at that time to glue together stone tools.
The presences of tooth marks suggest ±âÈïÆ÷ÀåÀÌ»ç the substance was chewed, perhaps to make it more malleable, or possibly to relieve toothache or other ailments.
What does the information tell us?
The researchers said the information preserved in this way offers a snapshot of people's lives, providing information on ancestry, livelihood and ±¤Èñµ¿ÀÌ»ç¾÷ü health.
DNA extracted from the chewing gum also gives an insight into how human pathogens have evolved over the years.