Blood Vessels in the Ear of a Mouse (IMAGE) Stanford University Caption Gold nanorods within the blood vessels of a mouse ear appear green. The lower right shows vessels within a tumor that lies under the skin. Credit de la Zerda lab Usage Restrictions Only with credit to the de la Zerda lab 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.