Eco-cells and Ecospace (IMAGE) University of Washington Caption Diagrams of the Rubik's Cube-like method the team created in order to visually see how past and present mammals fill a certain type of role or eco-cell in their ecospace. Credit <i>Proceedings of the National Academy of Sciences</i> Usage Restrictions Must include 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.