Salamander Egg Mass (IMAGE) American Museum of Natural History Caption This photo shows a spotted salamander egg mass. Developing embryos are encased in eggs that are green due to the presence of symbiotic algae. The green alga enters cells of the spotted salamander embryos during development. Credit © Roger Hangarter Usage Restrictions Can be used with appropriate 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.