Ambrosia Beetles (IMAGE) University of Würzburg Caption Beetles share the work of cultivating their fungal gardens: some clean the tunnel systems that are being eaten into the wood, others clear the dirt from the nest and clean their fellow workers -- always with the aim of optimizing the symbiosis of beetle and fungus. Credit Gernot Kunz 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.