Fisher, Postmortem (IMAGE) University of California - Davis Caption This fisher, brought to UC Davis for a necropsy, was poisoned by anticoagulant rodenticide (rat poison) found on an illegal marijuana grow site in Northern California. Credit UC Davis Usage Restrictions Provide 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.