10,000-year-old chewing gum is full of clues about what Stone Age teens were eating

• Scientists extracted DNA from chewing gum used by teenagers almost 10,000 years ago.
• The gum provided clues into what the teenagers had eaten and their lifestyle.
• Stone Age teenagers' diets included hazelnuts, duck, deer, fox, and trout, the study said. 

DNA extracted from chewing gum used by teenagers almost 10,000 years ago has provided fascinating clues into their prehistoric diet.