Vial Containing 5,000-Year-Old Lipid (IMAGE) University of Bristol Caption This is a vial containing a 5,000-year-old lipid extracted from Late Neolithic pot. Researchers from the University of Bristol, UK analyzed such residues to establish the antiquity of dairying in Ireland. Credit Dr. Jessica Smyth, University of Bristol, UK Usage Restrictions The image is for single use only to illustrate stories about the paper 'Milking the megafauna: Using organic residue analysis to understand early farming practice' by Jessica Smyth and Richard P. Evershed in <i>Journal of Environmental Archaeology<i/>, and is not to be archived. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.