Red Algae (IMAGE) University of Birmingham Caption Red algae are among the most efficient energy converting organisms on Earth. Credit Unsplash Usage Restrictions <a target="_blank" href="https://unsplash.com/license">https://unsplash.com/license</a> 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.