|Also trapped within the gum was genetic material from one of her meals—duck and hazelnuts—along with DNA from the bacteria and viruses she harbored in her mouth.||Ancient people in Scandinavia used birch pitch as chewing gum. Scientists were able to sequence a complete human genome from a piece of birch pitch that was chewed up and spat out in southern Denmark some 5700 years ago. The chewer was female, with dark skin, dark hair, and blue eyes. |
17,000-year-old puma shit from the southern Andes contains the oldest parasite DNA yet recorded. It proves pumas were infested with roundworm long before humans and their animals arrived.