Tangled hairworms (IMAGE) Field Museum Caption Two live tangled individuals of Gordionus violaceus, a freshwater hairworm, from Germany. Credit Gonzalo Giribet Usage Restrictions Please include credit License Original 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.