The first genetic data from Palaeolithic human individuals in the UK - the oldest human DNA obtained from the British Isles so far - indicates the presence of two distinct groups that migrated to Britain at the end of the last ice age, according to new research.
Published today in Nature Ecology and Evolution, the new study by UCL Institute of Archaeology, the Natural History Museum and the Francis Crick Institute researchers reveals for the first time that the recolonisation of Britain consisted of at least two groups with distinct origins and cultures.
The study team explored DNA evidence from an individual from Gough’s Cave, Somerset, and an individual from Kendrick’s Cave, North Wales, who both lived more than 13,500 years ago. Very few skeletons of this age exist in Britain, with around a dozen found across six sites in total. The study, which involved radiocarbon dating and analysis as well as DNA extraction and sequencing, shows that it is possible to obtain useful genetic information from some of the oldest human skeletal material in the country.
The authors say that these genome sequences now represent the earliest chapter of the genetic history of Britain, but ancient DNA and proteins promise to take us back even further into human history.
The researchers found that the DNA from the individual from Gough’s Cave, who died about 15,000 years ago, indicates that her ancestors were part of an initial migration into northwest Europe around 16,000 years ago. However, the individual from Kendrick’s Cave is from a later period, around 13,500 years ago, with his ancestry from a western hunter-gatherer group. This group’s ancestral origins are thought to be from the near East, migrating to Britain around 14,000 years ago.
Study co-author Dr Mateja Hajdinjak (Francis Crick Institute) said: “Finding the two ancestries so close in time in Britain, only a millennium or so apart, is adding to the emerging picture of Palaeolithic Europe, which is one of a changing and dynamic population.”
The authors note that these migrations occurred after the last ice age when approximately two-thirds of Britain was covered by glaciers. As the climate warmed and the glaciers melted, drastic ecological and environmental changes took place and humans began to move back into northern Europe.
Study co-author Dr Sophy Charlton, who undertook the study whilst at the Natural History Museum, said: “The period we were interested in, from 20-10,000 years ago, is part of the Palaeolithic – the Old Stone Age. This is an important time period for the environment in Britain, as there would have been significant climate warming, increases in the amount of forest, and changes in the type of animals available to hunt.”
As well as genetically, the two groups were found to be culturally distinct, with differences in what they ate and how they buried their dead.
Study co-author Dr Rhiannon Stevens (UCL Institute of Archaeology) said: “Chemical analyses of the bones showed that the individuals from Kendrick’s Cave ate a lot of marine and freshwater foods, including large marine mammals.
“Humans at Gough’s Cave, however, showed no evidence of eating marine and freshwater foods, and primarily ate terrestrial herbivores such as red deer, bovids (such as wild cattle called aurochs) and horses.”
The researchers discovered that the mortuary practices of the two groups also differed. Although there were animal bones found at Kendrick’s Cave, these included portable art items, such as a decorated horse jawbone. No animal bones were found that showed evidence of being eaten by humans, and the scientists say that this indicates the cave was used as a burial site by its occupiers.
In contrast, animal and human bones found in Gough’s Cave showed significant human modification, including human skulls modified into ‘skull-cups’, which the researchers believe to be evidence for ritualistic cannibalism. Individuals from this earlier population seem to be the same people who created the Magdalenian stone tools, a culture known also for iconic cave art and bone artefacts.
Gough’s Cave is also the site where Britain’s famous Cheddar Man was discovered in 1903, dated to 10,564-9,915 years BP. In this study, Cheddar Man was found to have a mixture of ancestries, mostly (85%) western hunter-gatherer and some (15%) of the older type from the initial migration.
Co-author Dr Selina Brace (Natural History Museum) said: “We really wanted to find out more about who these early populations in Britain might have been.
“We knew from our previous work, including the study of Cheddar Man, that western hunter-gatherers were in Britain by around 10,500 years BP, but we didn’t know when they first arrived in Britain, and whether this was the only population that was present.”
Notes to editors
· The human remains from Kendrick’s Cave are on display at Llandudno Museum by permission of Conwy County Borough Council, and from Gough’s Cave at the Natural History Museum, by permission of the Longleat Estate.
· The deglacial (end of the last ice-age) began around 20,000 years ago.
· Rapid climate warming occurred during the Late Glacial, which began ~14,700 years ago and ended at the start of the Holocene, ~11,700 years ago.
· The early, southwest European ancestry described has been associated with Magdalenian-associated individuals closely related to those from sites such as El Mirón Cave, Spain, and Troisième Caverne in Goyet, Belgium.
· Western hunter-gatherer ancestry has been associated with Epigravettian, Azilian/Federmesser, Epipalaeolithic and Mesolithic cultures.
· Gough’s Cave is also where Britain’s famous Cheddar Man was found. Cheddar Man is dated to 10,564-9,915 years BP and interestingly in this study was found to have a mixture of ancestries, mostly (85%) western hunter-gatherer and but also some (15%) of the older southwest European ancestry.
For more information or to speak to the researchers involved, please contact:
Natural History Museum Media contact: Tel: +44 (0)20 7942 5654 / 07799690151 Email: email@example.com
UCL Media Contact: Evie Calder, Tel: +44 20 7679 8557 / +44 (0)7858 152143 Email: firstname.lastname@example.org
The Francis Crick Institute Media contact: Tel: +44 (0)20 3796 5252 / +44 (0)7918 166 173 Email: email@example.com
Llandudno Museum Media contact: Tel 01492 701490 / 07434 748799 Dawn@llandudnomuseum.co.uk
Sophy Charlton, Selina Brace, Mateja Hajdinjak, Rebecca Kearney, Thomas Booth, Hazel Reade, Jennifer Tripp. Kerry L. Sayle, Sonja B. Grimm, Silvia M. Bello, Elizabeth A. Walker, Alexandre Gilardet, Philip East, Isabelle Glocke, Greger Larson, Tom Higham, Chris Stringer, Pontus Skoglund, Ian Barnes and Rhiannon E. Stevens (2022) ‘Dual ancestries and ecologies of the Late Glacial Palaeolithic in Britain’ will be published in Nature Ecology and Evolution at 16:00 on Monday 24 October 2022, and is under a strict embargo until this time.
Once published online, the paper will be available at the following URL: https://www.nature.com/articles/s41559-022-01883-z
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Nature Ecology & Evolution
Dual ancestries and ecologies of the Late Glacial Palaeolithic in Britain
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