<i>Salmoneus alpheophilus</i> Shrimp (IMAGE) University of Bath Caption Shrimp have evolved from marine to freshwater environments several times. Credit Arthur Anker Usage Restrictions None 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.