Sumatran Orangutans (image) American Genetic Association Caption Sumatran orangutans have undergone a substantial recent population decline, according to a new genetic study published in Journal of Heredity, but the same research revealed the existence of critical corridors for dispersal migrations that, if protected, can help maintain genetic diversity and aid in the species' conservation. Credit Photo courtesy of Michael Kreutzen, University of Zurich Usage Restrictions This image may only be used with appropriate caption and credit. 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.