Chewing gum tells of Stone Age life.

The article discusses research involving a lump of birch bark-related pitch which was discovered on the island of Lolland, and it mentions how DNA was extracted from the pitch in order to discover the ancestry, diet, and appearance of a Stone Age woman nicknamed Lola who is thought to have discarded the pitch close to 6,000 years ago. According to the article, the pitch is considered to be a form of prehistoric chewing gum which was used to glue arrowheads and knife blades to other surfaces.