Orangutan (IMAGE) Great Ape Trust of Iowa Caption Four internationally respected orangutan experts have edited a new book that, for the first time, compares data collected at every known orangutan research site and examines the information to discern differences and similarities among orangutan species, subspecies and populations. Credit Perry van Duijnhoven Usage Restrictions Usage for 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.