Intact Ecosystems (IMAGE) Wildlife Conservation Society Caption Researchers developed a new metric called "The Last of the Wild in Each Ecoregion" (LWE), which aimed to quantify the most intact parts of each ecoregion. Credit Rob Wallace/WCS Usage Restrictions use for this story only 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.