Virtual 3D Gibbon Skull Model (IMAGE) eLife Caption A virtual 3D model of a gibbon skull with part of the inner ear highlighted in red. Credit Alessandro Urciuoli (CC BY 4.0) Usage Restrictions This image is free to be reused, as long as it is credited as appropriate. 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.