Wild Orangutan (IMAGE) Great Ape Trust of Iowa Caption Endangered wild orangutan populations are declining more sharply in Sumatra and Borneo than previously estimated, according to new findings published this month by Great Ape Trust of Iowa scientist Dr. Serge Wich and other orangutan conservation experts. Credit Perry van Duijnhoven Usage Restrictions Photo usage with this article 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.