Retinal cross-section (IMAGE) Duke University Caption A photomicrograph of a chick retina shows the ganglion cell bodies in an orderly layer at the top and then the tangled layer of root-like dendrites in the blue and yellow layer below, which is where mosaics of different visual sensitivities are laid out. Credit Andy J. Fischer, The Ohio State University, 2008 Usage Restrictions Please credit: Andy J. Fischer, The Ohio State University, 2008 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.