5,700 year old 'chewing gum' reveals entire genetic code of stone age woman
The complete genetic code of a stone age woman has been recovered from a piece of ancient chewing gum, the first time such a feat has been achieved without any human body parts.
Archaeologists have known for some time that people as far back as the Neanderthals used tar from birch trees to make sticky adhesive for mounting tools. And tooth marks found in discarded pieces suggested they had also chewed the tacky substance, possibly to soften it to make it more malleable for working.
Researchers at the University of Copenhagen found a 5,700 year old piece of ancient gum during excavations at Syltholm, east of Rodbyhavn in southern Denmark, ahead of the building of a new