Ant and Aphid (IMAGE) BMC (BioMed Central) Caption The yellow meadow ant, Lasius flavus, farms root aphids for sugar (honeydew) and nitrogen (protein). Credit Aniek Ivens Usage Restrictions None 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.