Previous researchers generally assumed that pigs found at Neolithic feasting sites had been raised locally, while cattle were considered more useful indicators of long-distance human movement.
Notes on verification
Confirmed by peer-reviewed Science Advances paper, Cardiff University press release, and NCBI-hosted version of the study, all directly supporting both halves of the claim.
Sources
- Stonehenge-era pig roasts united ancient Britain, scientists say (nationalgeographic.com)
- https://www.science.org/doi/10.1126/sciadv.aau6078 (science.org)
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6415963/ (ncbi.nlm.nih.gov)
- https://www.cardiff.ac.uk/news/view/1425426-prehistoric-britons-rack-up-food-miles-for-feasts-near-stonehenge (cardiff.ac.uk)