Tiny, newly formed tumors shed small fragments of DNA that are swept into the bloodstream. Future cancer screening tests could detect them early.

Extracting fragments of DNA from 4,000-year-old strands of hair from Greenland that had been stored in a Copenhagen museum for decades, they reconstructed the first complete ancient human genome.

While Essel said it would take further examinations to know specifically the source of the DNA — be it from sweat, blood or another biological form — the researchers were able to compare it ...

The owner of a deer tooth pendant has been identified over 20,000 years after their death. A group of researchers managed to extract the ancient DNA (aDNA) of a woman from the piece of jewellery, ...