Six-Armed Sea Star (IMAGE) University of California - Davis Caption Six-armed sea stars like this one experienced almost 100 percent mortality across a 62-mile stretch of coast in Northern California in 2011. Credit Laura Jurgens/UC Davis Bodega Marine Laboratory Usage Restrictions Provide credit 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.