Branching worm at home (in host sponge) (IMAGE) University of Göttingen Caption The home of the branching worm: a host sponge in its natural habitat. the posterior end of the branching worm can be seen on the surface of the sponge. Credit Toru Miura Usage Restrictions None 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.