cephalopods (IMAGE) Kazan Federal University Caption Isotopic niches of the studied species of the genus Rossia: comparison among species and ontogenetic comparison within species. Credit Olga Zimina 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.