What makes a carrot orange? (IMAGE) North Carolina State University Caption Massimo Iorizzo examines orange carrots to learn more about their pigmentation and domestication. Credit Photo courtesy of Massimo Iorizzo. Usage Restrictions None License Original 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.