Cod Using Tools (VIDEO) Springer Science+Business Media This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption A cod is using its tag to activate a self feeder, evidence that the mental ability of fish is on par with that of other animals. Credit Culum Brown Usage Restrictions Credit Culum Brown 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.