Squid Skin (2 of 3) (IMAGE) University of California - Santa Barbara Caption A close-up view of the iridocytes, showing their potential to tune to a broad range of colors. Credit UCSB Usage Restrictions None 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.