Gibbons (IMAGE) Heinrich-Heine University Duesseldorf Caption A northern white-cheeked gibbon at Mulhouse Zoo (left) and a female yellow-cheeked gibbon with young at Amsterdam Zoo (right). (Photos: Miriam Lindenmeier (left); HHU/Kai R. Caspar (right)) Credit Miriam Lindenmeier (left); HHU/Kai R. Caspar (right) Usage Restrictions No restrictions. License Public Domain 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.