Green algae in tadpole blood vessels (IMAGE) Cell Press Caption The injected green algae (green) sit inside the blood vessels (magenta) like a string of pearls. Credit Özugur et al./iScience Usage Restrictions Credit must be given to the creator. Adaptations must be shared under the same terms. License CC BY-SA 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.