seafloor sediment (IMAGE) Texas A&M University Caption Seafloor sediments that have been burrowed and churned by invertebrate animals, which new research shows play an important role in protecting marine ecosystems. Credit Dr. Martin Solan, University of Southampton Usage Restrictions free use with 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.