Seals on La Jolla, CA beach (IMAGE) University of Southern California Caption Toxic algae blooms are a recurring natural phenomenon in Southern California, but scientists are increasingly concerned over the frequency and severity of these outbreaks, which impact wildlife such as dolphins and sea lions. (Photo/iStock.) Credit iStock Usage Restrictions More information here: https://www.istockphoto.com/legal/license-agreement 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.