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This 8000-year-old ‘gum’ holds surprises about ancient toolmakers
This 8000-year-old ‘gum’ holds surprises about ancient toolmakers
Gum won’t really sit in your stomach for years, but it can preserve human DNA for millennia. Researchers have uncovered genetic material encased within 8000-year-old tarlike wads known as birch bark pitch, which Scandinavian hunter-gatherers chewed to make a glue for weapons and tools. Among other things, the DNA suggests these toolmakers were both male and female, and some may have been as young as 5 years old.
https://www.sciencemag.org/news/2018...ent-toolmakers
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