Hagfish (IMAGE) University of Alberta Caption An adult hagfish in a container filled with sea water. New U of A research reveals unexpected similarities between the eyes of hagfish and those of other vertebrates including humans, shedding new light on how our vision evolved. (Photo: Ryan Wayne) Credit Ryan Wayne Usage Restrictions with credit 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.