A group of researchers led by Richard Madgwick of Cardiff University analyzed pig, sheep, and cattle bones discovered via excavation at Navan Fort in Armagh, Northern Ireland. The analysis included the bones of 35 animals (primarily pig, but also cattle and goat/sheep). After performing multi-isotope analysis on samples of tooth enamel to determine where the animals spent their formative years (water leaves a unique identifiable locality trace in the enamel), the researchers concluded that people brought animals over great distances with the intent of feasting at the Navan Fort ritual complex. This is important since in some cases the animals traveled 100 miles before being consumed at Navan Fort, indicating…