A Year-End Roundup of 2025’s Ancient-DNA Discoveries

Each year-end brings a flurry of “best of” lists in paleoanthropology. This year, John Hawks, a paleoanthropologist at the University of Wisconsin, posted his top ten ancient-DNA discoveries of 2025 on his personal blog. Note that this is an individual year-end roundup; the specific claims below should be checked against the original papers.

The most discussed item is the Denisova 25 molar study announced in October. The roughly 200,000-year-old tooth yielded the oldest high-coverage archaic human genome to date. “High coverage” means researchers could read its genetic information at high precision, rather than recovering only scattered fragments.

In his roundup, Hawks discusses the genome’s implications for models of when Neanderthals and Denisovans diverged: an older, higher-quality genome tends to force a recalibration of the split between the two archaic lineages. That is precisely why pushing ancient-DNA work toward ever-older samples matters.

The list also offers a panoramic view of the year’s work on East Asian and Eurasian population history: from how early modern humans interacted with Denisovans, through Neolithic migrations and admixture, to Siberian cave genomes that keep rewriting the timeline. Each seemingly isolated finding tightens the same overall web.

As a year-end explainer, this piece aims not to settle questions but to offer a reading map: following Hawks’s list, readers can trace each claim back to the original study that reshaped our understanding.

Source: John Hawks (personal blog year-end list; this is a review/interpretation). Top 10 discoveries about ancient people from DNA in 2025, 2025-12-19.