Sponge (IMAGE) Marine Biological Laboratory Caption The interior of the brood chamber of a sponge, Amphimedon queenslandica, showing embryos in the early phases of development. Credit Bryony Fahey (University of Queensland) Usage Restrictions Use with proper credit only. 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.