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## The Researchers and Their Roles
The 2018 Cheddar Man project was a collaborative effort whose key participants came from two institutions.
Selina Brace of the Natural History Museum led the DNA extraction and sequencing work — the laboratory effort to recover and sequence the ancient genetic material. Brace specializes in ancient DNA work from British prehistoric specimens.
Tom Booth, also of the Natural History Museum, was a co-author of the research and became one of the key communicators of the findings to the public and media. Booth’s broader research focuses on how migration and population change shaped the human adaptation to new environments across time.
Yoan Diekmann of University College London was involved in the population genetics analysis — the computational work of comparing the Cheddar Man genome against other ancient and modern genomes to establish his population affinities. Diekmann is also listed as a co-author on the 2019 Nature Ecology and Evolution paper that formally published the expanded findings.
Mark Thomas, professor of evolutionary genetics at UCL, was a senior contributor to the interpretation and communication of the findings. Thomas’s quote — that Cheddar Man’s genetic profile places him with other Mesolithic Europeans, and that the result “might surprise the public, but not ancient DNA geneticists” — captured both the scientific coherence of the finding and the gap between scientific knowledge and public expectation.
Chris Stringer, research leader in human origins at the Natural History Museum, brought a different kind of perspective to the project. Stringer had first studied the Cheddar Man remains more than forty years earlier, and he had been involved in earlier excavation work at Gough’s Cave. His statement on the reconstruction — calling it “quite surprising” in its results, and a “remarkable achievement” — combined personal familiarity with the specimen with genuine scientific reaction to what the DNA had revealed.