Octopus (image) St John's College, University of Cambridge Share Print E-Mail Caption The camera eye of an octopus is structurally similar to that of a human, but has evolved independently, making it a classic example of convergent evolution. Credit albert kok, CC image via Wikimedia Commons. Usage Restrictions This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported, 2.5 Generic, 2.0 Generic and 1.0 Generic license. Share Print E-Mail 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.