In a remarkable turn of events, scientists have stumbled upon non-human DNA from ancient fossils, shaking the very foundations of our understanding of human evolution and our ancestral lineage.

Scientists in Tokyo have uncovered “Inocles,” massive strands of extrachromosomal DNA hidden inside bacteria in human mouths. These giants, overlooked by traditional sequencing, could explain how oral ...

A new hereditary condition has been discovered that affects patients' ability to repair DNA—leaving them both at greater risk of developing blood cancer, and unable to repair some of the damage caused ...

Fifteen years after the discovery of a new type of human, the Denisovan, scientists discovered its DNA in a fossilized skull. The key? Tooth plaque. By Carl Zimmer When Qiaomei Fu discovered a new ...