From Polyp to Jellyfish (image) Okinawa Institute of Science and Technology (OIST) Graduate University Share Print E-Mail Caption Jellyfish start out in a stationary polyp stage and later develop into jellyfish, when environmental conditions are right. The Morbakka virulenta, pictured here, is beginning to develop into a full-fledged jelly. Credit OIST Usage Restrictions None Share Print E-Mail 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.